Product Name

  • Name

    (1S)-4,5-Dimethoxy-1-[(methylamino)methyl]benzocyclobutane hydrochloride

  • EINECS 617-905-7
  • CAS No. 866783-13-3
  • Article Data6
  • CAS DataBase
  • Density
  • Solubility
  • Melting Point
  • Formula C12H18ClNO2
  • Boiling Point 338.6 °C at 760 mmHg
  • Molecular Weight 243.733
  • Flash Point 158.6 °C
  • Transport Information
  • Appearance
  • Safety
  • Risk Codes
  • Molecular Structure Molecular Structure of 866783-13-3 ((1S)-4,5-Dimethoxy-1-[(methylamino)methyl]benzocyclobutane hydrochloride)
  • Hazard Symbols
  • Synonyms Bicyclo[4.2.0]octa-1,3,5-triene-7-methanamine,3,4-dimethoxy-N-methyl-, hydrochloride, (7S)- (9CI);(1S)-4,5-Dimethoxy-1-[(methylamino)methyl]benzocyclobutane hydrochloride;(S)-N-[(4,5-dimethoxybenzocyclobut-1-yl)methyl ]-N-methylamine hydrochloride;
  • PSA 30.49000
  • LogP 2.75580

Synthetic route

[{(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl}methyl](methyl)amine
866783-12-2

[{(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl}methyl](methyl)amine

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride
866783-13-3

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride

Conditions
ConditionsYield
Stage #1: [{(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl}methyl](methyl)amine With acetic acid In ethanol at 20℃; for 0.5h;
Stage #2: With hydrogenchloride at 15 - 20℃; for 1h;
95%
With hydrogenchloride In ethanol; ethyl acetate at 15 - 20℃; for 1h; Industry scale;92%
[{(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl}methyl](methyl)amine d-camphorsulfonate
1031767-75-5

[{(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl}methyl](methyl)amine d-camphorsulfonate

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride
866783-13-3

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride

Conditions
ConditionsYield
Stage #1: [{(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl}methyl](methyl)amine d-camphorsulfonate In dichloromethane; water pH=10 - 11;
Stage #2: With hydrogenchloride In ethanol; ethyl acetate at 0 - 5℃; pH=1 - 2;
94%
(7S)-3,4-dimethoxy-N-methylbicyclo[4.2.0]octa-1,3,5-triene-7-carboxamide
1220993-43-0

(7S)-3,4-dimethoxy-N-methylbicyclo[4.2.0]octa-1,3,5-triene-7-carboxamide

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride
866783-13-3

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride

Conditions
ConditionsYield
Stage #1: (7S)-3,4-dimethoxy-N-methylbicyclo[4.2.0]octa-1,3,5-triene-7-carboxamide With borane-THF In tetrahydrofuran at 20 - 50℃;
Stage #2: With methanol In tetrahydrofuran at 0 - 5℃; for 0.25h;
Stage #3: With hydrogenchloride In ethyl acetate at 0℃; for 2.5h; Reflux;
88%
Stage #1: (7S)-3,4-dimethoxy-N-methylbicyclo[4.2.0]octa-1,3,5-triene-7-carboxamide With borane-THF In tetrahydrofuran at 20℃;
Stage #2: With hydrogenchloride In tetrahydrofuran; ethanol for 4h;
77%
ethyl ((3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl)methyl)carbamate
148870-55-7

ethyl ((3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl)methyl)carbamate

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride
866783-13-3

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride

Conditions
ConditionsYield
Stage #1: ethyl [(3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl)methyl]carbamate With lithium aluminium tetrahydride In tetrahydrofuran for 1h; Reflux;
Stage #2: With hydrogenchloride In ethanol; ethyl acetate at 15 - 20℃; for 1h;
85%
3,4-dimethoxy-bicyclo[4.2.0]octa-1,3,5-triene-7-carbonitrile
35202-54-1

3,4-dimethoxy-bicyclo[4.2.0]octa-1,3,5-triene-7-carbonitrile

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride
866783-13-3

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride

Conditions
ConditionsYield
Multi-step reaction with 6 steps
1.1: potassium hydroxide; water / 4 h / Reflux
1.2: 20 °C
2.1: ethyl acetate / 1.25 h / 0 °C / Reflux
3.1: hydrogenchloride / dichloromethane; water / 0.08 h
4.1: oxalyl dichloride / N,N-dimethyl-formamide / dichloromethane / 15 - 25 °C
5.1: dichloromethane; water / 0 - 10 °C
6.1: borane-THF / tetrahydrofuran / 20 - 50 °C
6.2: 0.25 h / 0 - 5 °C
6.3: 2.5 h / 0 °C / Reflux
View Scheme
Multi-step reaction with 6 steps
1.1: potassium hydroxide; water / 4 h / Reflux
1.2: 20 °C
2.1: acetone / 0.5 h / Reflux; Cooling
3.1: hydrogenchloride / ethyl acetate; water / 0.08 h / pH 3
4.1: oxalyl dichloride / N,N-dimethyl-formamide / dichloromethane / 15 - 25 °C
5.1: dichloromethane; water / 0 - 10 °C
6.1: borane-THF / tetrahydrofuran / 20 - 50 °C
6.2: 0.25 h / 0 - 5 °C
6.3: 2.5 h / 0 °C / Reflux
View Scheme
Multi-step reaction with 6 steps
1.1: potassium hydroxide; water / 4 h / Reflux
1.2: 20 °C
2.1: ethyl acetate / 1 h / 18 °C / Heating
3.1: hydrogenchloride / dichloromethane; water / 0.33 h
4.1: oxalyl dichloride / N,N-dimethyl-formamide / dichloromethane / 15 - 25 °C
5.1: dichloromethane; water / 0 - 10 °C
6.1: borane-THF / tetrahydrofuran / 20 - 50 °C
6.2: 0.25 h / 0 - 5 °C
6.3: 2.5 h / 0 °C / Reflux
View Scheme
(R,S)-4,5-dimethoxy-1,2-dihydrocyclobutabenzene-1-carboxylic acid
41234-23-5

(R,S)-4,5-dimethoxy-1,2-dihydrocyclobutabenzene-1-carboxylic acid

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride
866783-13-3

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1.1: ethyl acetate / 1.25 h / 0 °C / Reflux
2.1: hydrogenchloride / dichloromethane; water / 0.08 h
3.1: oxalyl dichloride / N,N-dimethyl-formamide / dichloromethane / 15 - 25 °C
4.1: dichloromethane; water / 0 - 10 °C
5.1: borane-THF / tetrahydrofuran / 20 - 50 °C
5.2: 0.25 h / 0 - 5 °C
5.3: 2.5 h / 0 °C / Reflux
View Scheme
Multi-step reaction with 5 steps
1.1: ethyl acetate / 1 h / 18 °C / Heating
2.1: hydrogenchloride / dichloromethane; water / 0.33 h
3.1: oxalyl dichloride / N,N-dimethyl-formamide / dichloromethane / 15 - 25 °C
4.1: dichloromethane; water / 0 - 10 °C
5.1: borane-THF / tetrahydrofuran / 20 - 50 °C
5.2: 0.25 h / 0 - 5 °C
5.3: 2.5 h / 0 °C / Reflux
View Scheme
Multi-step reaction with 5 steps
1.1: ethyl acetate / 1 h / 18 °C / Heating
2.1: hydrogenchloride / dichloromethane; water / 0.33 h
3.1: oxalyl dichloride / N,N-dimethyl-formamide / dichloromethane / 15 - 25 °C
4.1: dichloromethane; water / 0 - 10 °C
5.1: borane-THF / tetrahydrofuran / 20 - 50 °C
5.2: 0.25 h / 0 - 5 °C
5.3: 2.5 h / 0 °C / Reflux
View Scheme
Multi-step reaction with 5 steps
1.1: ethyl acetate / Heating
2.1: hydrogenchloride / dichloromethane; water / 0.33 h
3.1: oxalyl dichloride / N,N-dimethyl-formamide / dichloromethane / 15 - 25 °C
4.1: dichloromethane; water / 0 - 10 °C
5.1: borane-THF / tetrahydrofuran / 20 - 50 °C
5.2: 0.25 h / 0 - 5 °C
5.3: 2.5 h / 0 °C / Reflux
View Scheme
Multi-step reaction with 5 steps
1.1: acetone / 0.5 h / Reflux; Cooling
2.1: hydrogenchloride / ethyl acetate; water / 0.08 h / pH 3
3.1: oxalyl dichloride / N,N-dimethyl-formamide / dichloromethane / 15 - 25 °C
4.1: dichloromethane; water / 0 - 10 °C
5.1: borane-THF / tetrahydrofuran / 20 - 50 °C
5.2: 0.25 h / 0 - 5 °C
5.3: 2.5 h / 0 °C / Reflux
View Scheme
(S)-3,4-dimethoxy-bicyclo[4.2.0]octa-1,3,5-triene-7-carboxylic acid (+)-cinchonine

(S)-3,4-dimethoxy-bicyclo[4.2.0]octa-1,3,5-triene-7-carboxylic acid (+)-cinchonine

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride
866783-13-3

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1.1: hydrogenchloride / dichloromethane; water / 0.08 h
2.1: oxalyl dichloride / N,N-dimethyl-formamide / dichloromethane / 15 - 25 °C
3.1: dichloromethane; water / 0 - 10 °C
4.1: borane-THF / tetrahydrofuran / 20 - 50 °C
4.2: 0.25 h / 0 - 5 °C
4.3: 2.5 h / 0 °C / Reflux
View Scheme
(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-triene-7-carboxylic acid
1220993-44-1

(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-triene-7-carboxylic acid

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride
866783-13-3

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: oxalyl dichloride / N,N-dimethyl-formamide / dichloromethane / 15 - 25 °C
2.1: dichloromethane; water / 0 - 10 °C
3.1: borane-THF / tetrahydrofuran / 20 - 50 °C
3.2: 0.25 h / 0 - 5 °C
3.3: 2.5 h / 0 °C / Reflux
View Scheme
Multi-step reaction with 2 steps
1.1: chloroformic acid ethyl ester; triethylamine / tetrahydrofuran / 20 °C
1.2: 20 °C
2.1: borane-THF / tetrahydrofuran / 20 °C
2.2: 4 h
View Scheme
(S)-3,4-dimethoxy-bicyclo[4.2.0]octa-1.3,5-triene-7-carboxylic acid (S)-(-)-1-(naphthyl)-ethylamine
1346558-07-3

(S)-3,4-dimethoxy-bicyclo[4.2.0]octa-1.3,5-triene-7-carboxylic acid (S)-(-)-1-(naphthyl)-ethylamine

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride
866783-13-3

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1.1: hydrogenchloride / dichloromethane; water / 0.33 h
2.1: oxalyl dichloride / N,N-dimethyl-formamide / dichloromethane / 15 - 25 °C
3.1: dichloromethane; water / 0 - 10 °C
4.1: borane-THF / tetrahydrofuran / 20 - 50 °C
4.2: 0.25 h / 0 - 5 °C
4.3: 2.5 h / 0 °C / Reflux
View Scheme
3,4-dimethoxy-bicyclo[4.2.0]octa-1.3,5-triene-7-carboxylic acid (S)-(-)-1-(naphthyl)-ethylamine

3,4-dimethoxy-bicyclo[4.2.0]octa-1.3,5-triene-7-carboxylic acid (S)-(-)-1-(naphthyl)-ethylamine

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride
866783-13-3

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1.1: hydrogenchloride / dichloromethane; water / 0.33 h
2.1: oxalyl dichloride / N,N-dimethyl-formamide / dichloromethane / 15 - 25 °C
3.1: dichloromethane; water / 0 - 10 °C
4.1: borane-THF / tetrahydrofuran / 20 - 50 °C
4.2: 0.25 h / 0 - 5 °C
4.3: 2.5 h / 0 °C / Reflux
View Scheme
Multi-step reaction with 7 steps
1.1: hydrogenchloride / dichloromethane; water / 0.33 h
2.1: potassium hydroxide / water / 4 h
2.2: 0.5 h / Cooling with ice-water bath
3.1: acetone / 0.5 h / Reflux; Cooling
4.1: hydrogenchloride / ethyl acetate; water / 0.08 h / pH 3
5.1: oxalyl dichloride / N,N-dimethyl-formamide / dichloromethane / 15 - 25 °C
6.1: dichloromethane; water / 0 - 10 °C
7.1: borane-THF / tetrahydrofuran / 20 - 50 °C
7.2: 0.25 h / 0 - 5 °C
7.3: 2.5 h / 0 °C / Reflux
View Scheme
Multi-step reaction with 7 steps
1.1: hydrogenchloride / dichloromethane; water / 0.33 h
2.1: potassium hydroxide / water / 4 h
2.2: 0.5 h / Cooling with ice-water bath
3.1: ethyl acetate / 1.25 h / 0 °C / Reflux
4.1: hydrogenchloride / dichloromethane; water / 0.08 h
5.1: oxalyl dichloride / N,N-dimethyl-formamide / dichloromethane / 15 - 25 °C
6.1: dichloromethane; water / 0 - 10 °C
7.1: borane-THF / tetrahydrofuran / 20 - 50 °C
7.2: 0.25 h / 0 - 5 °C
7.3: 2.5 h / 0 °C / Reflux
View Scheme
Multi-step reaction with 7 steps
1.1: hydrogenchloride / dichloromethane; water / 0.33 h
2.1: potassium hydroxide / water / 4 h
2.2: 0.5 h / Cooling with ice-water bath
3.1: ethyl acetate / Heating
4.1: hydrogenchloride / dichloromethane; water / 0.33 h
5.1: oxalyl dichloride / N,N-dimethyl-formamide / dichloromethane / 15 - 25 °C
6.1: dichloromethane; water / 0 - 10 °C
7.1: borane-THF / tetrahydrofuran / 20 - 50 °C
7.2: 0.25 h / 0 - 5 °C
7.3: 2.5 h / 0 °C / Reflux
View Scheme
(R)-4,5-dimethoxy-1,2-dihydrocyclobutabenzene-1-carboxylic acid
1220993-48-5

(R)-4,5-dimethoxy-1,2-dihydrocyclobutabenzene-1-carboxylic acid

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride
866783-13-3

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride

Conditions
ConditionsYield
Multi-step reaction with 6 steps
1.1: potassium hydroxide / water / 4 h
1.2: 0.5 h / Cooling with ice-water bath
2.1: ethyl acetate / 1.25 h / 0 °C / Reflux
3.1: hydrogenchloride / dichloromethane; water / 0.08 h
4.1: oxalyl dichloride / N,N-dimethyl-formamide / dichloromethane / 15 - 25 °C
5.1: dichloromethane; water / 0 - 10 °C
6.1: borane-THF / tetrahydrofuran / 20 - 50 °C
6.2: 0.25 h / 0 - 5 °C
6.3: 2.5 h / 0 °C / Reflux
View Scheme
Multi-step reaction with 6 steps
1.1: potassium hydroxide / water / 4 h
1.2: 0.5 h / Cooling with ice-water bath
2.1: acetone / 0.5 h / Reflux; Cooling
3.1: hydrogenchloride / ethyl acetate; water / 0.08 h / pH 3
4.1: oxalyl dichloride / N,N-dimethyl-formamide / dichloromethane / 15 - 25 °C
5.1: dichloromethane; water / 0 - 10 °C
6.1: borane-THF / tetrahydrofuran / 20 - 50 °C
6.2: 0.25 h / 0 - 5 °C
6.3: 2.5 h / 0 °C / Reflux
View Scheme
Multi-step reaction with 6 steps
1.1: potassium hydroxide / water / 4 h
1.2: 0.5 h / Cooling with ice-water bath
2.1: ethyl acetate / 1 h / 18 °C / Heating
3.1: hydrogenchloride / dichloromethane; water / 0.33 h
4.1: oxalyl dichloride / N,N-dimethyl-formamide / dichloromethane / 15 - 25 °C
5.1: dichloromethane; water / 0 - 10 °C
6.1: borane-THF / tetrahydrofuran / 20 - 50 °C
6.2: 0.25 h / 0 - 5 °C
6.3: 2.5 h / 0 °C / Reflux
View Scheme
Multi-step reaction with 6 steps
1.1: potassium hydroxide / water / 4 h
1.2: 0.5 h / Cooling with ice-water bath
2.1: ethyl acetate / 1 h / 18 °C / Heating
3.1: hydrogenchloride / dichloromethane; water / 0.33 h
4.1: oxalyl dichloride / N,N-dimethyl-formamide / dichloromethane / 15 - 25 °C
5.1: dichloromethane; water / 0 - 10 °C
6.1: borane-THF / tetrahydrofuran / 20 - 50 °C
6.2: 0.25 h / 0 - 5 °C
6.3: 2.5 h / 0 °C / Reflux
View Scheme
Multi-step reaction with 6 steps
1.1: potassium hydroxide / water / 4 h
1.2: 0.5 h / Cooling with ice-water bath
2.1: ethyl acetate / Heating
3.1: hydrogenchloride / dichloromethane; water / 0.33 h
4.1: oxalyl dichloride / N,N-dimethyl-formamide / dichloromethane / 15 - 25 °C
5.1: dichloromethane; water / 0 - 10 °C
6.1: borane-THF / tetrahydrofuran / 20 - 50 °C
6.2: 0.25 h / 0 - 5 °C
6.3: 2.5 h / 0 °C / Reflux
View Scheme
(S)-3,4-dimethoxy-bicyclo[4.2.0]octa-1.3,5-triene-7-carboxylic acid (R)-(-)-1-(naphthyl)-ethylamine

(S)-3,4-dimethoxy-bicyclo[4.2.0]octa-1.3,5-triene-7-carboxylic acid (R)-(-)-1-(naphthyl)-ethylamine

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride
866783-13-3

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1.1: hydrogenchloride / dichloromethane; water / 0.33 h
2.1: oxalyl dichloride / N,N-dimethyl-formamide / dichloromethane / 15 - 25 °C
3.1: dichloromethane; water / 0 - 10 °C
4.1: borane-THF / tetrahydrofuran / 20 - 50 °C
4.2: 0.25 h / 0 - 5 °C
4.3: 2.5 h / 0 °C / Reflux
View Scheme
3,4-dimethoxy-bicyclo[4.2.0]octa-1.3,5-triene-7-carboxylic acid cinchonidine

3,4-dimethoxy-bicyclo[4.2.0]octa-1.3,5-triene-7-carboxylic acid cinchonidine

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride
866783-13-3

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1.1: hydrogenchloride / ethyl acetate; water / 0.08 h / pH 3
2.1: oxalyl dichloride / N,N-dimethyl-formamide / dichloromethane / 15 - 25 °C
3.1: dichloromethane; water / 0 - 10 °C
4.1: borane-THF / tetrahydrofuran / 20 - 50 °C
4.2: 0.25 h / 0 - 5 °C
4.3: 2.5 h / 0 °C / Reflux
View Scheme
Multi-step reaction with 7 steps
1.1: hydrogenchloride / ethyl acetate; water / 0.08 h / pH 3
2.1: potassium hydroxide / water / 4 h
2.2: 0.5 h / Cooling with ice-water bath
3.1: ethyl acetate / 1 h / 18 °C / Heating
4.1: hydrogenchloride / dichloromethane; water / 0.33 h
5.1: oxalyl dichloride / N,N-dimethyl-formamide / dichloromethane / 15 - 25 °C
6.1: dichloromethane; water / 0 - 10 °C
7.1: borane-THF / tetrahydrofuran / 20 - 50 °C
7.2: 0.25 h / 0 - 5 °C
7.3: 2.5 h / 0 °C / Reflux
View Scheme
Multi-step reaction with 7 steps
1.1: hydrogenchloride / ethyl acetate; water / 0.08 h / pH 3
2.1: potassium hydroxide / water / 4 h
2.2: 0.5 h / Cooling with ice-water bath
3.1: ethyl acetate / 1 h / 18 °C / Heating
4.1: hydrogenchloride / dichloromethane; water / 0.33 h
5.1: oxalyl dichloride / N,N-dimethyl-formamide / dichloromethane / 15 - 25 °C
6.1: dichloromethane; water / 0 - 10 °C
7.1: borane-THF / tetrahydrofuran / 20 - 50 °C
7.2: 0.25 h / 0 - 5 °C
7.3: 2.5 h / 0 °C / Reflux
View Scheme
Multi-step reaction with 7 steps
1.1: hydrogenchloride / ethyl acetate; water / 0.08 h / pH 3
2.1: potassium hydroxide / water / 4 h
2.2: 0.5 h / Cooling with ice-water bath
3.1: ethyl acetate / 1.25 h / 0 °C / Reflux
4.1: hydrogenchloride / dichloromethane; water / 0.08 h
5.1: oxalyl dichloride / N,N-dimethyl-formamide / dichloromethane / 15 - 25 °C
6.1: dichloromethane; water / 0 - 10 °C
7.1: borane-THF / tetrahydrofuran / 20 - 50 °C
7.2: 0.25 h / 0 - 5 °C
7.3: 2.5 h / 0 °C / Reflux
View Scheme
Multi-step reaction with 7 steps
1.1: hydrogenchloride / ethyl acetate; water / 0.08 h / pH 3
2.1: potassium hydroxide / water / 4 h
2.2: 0.5 h / Cooling with ice-water bath
3.1: ethyl acetate / Heating
4.1: hydrogenchloride / dichloromethane; water / 0.33 h
5.1: oxalyl dichloride / N,N-dimethyl-formamide / dichloromethane / 15 - 25 °C
6.1: dichloromethane; water / 0 - 10 °C
7.1: borane-THF / tetrahydrofuran / 20 - 50 °C
7.2: 0.25 h / 0 - 5 °C
7.3: 2.5 h / 0 °C / Reflux
View Scheme
3,4-dimethoxy-bicyclo[4.2.0]octa-1,3,5-triene-7-carboxylic acid (+)-cinchonine

3,4-dimethoxy-bicyclo[4.2.0]octa-1,3,5-triene-7-carboxylic acid (+)-cinchonine

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride
866783-13-3

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride

Conditions
ConditionsYield
Multi-step reaction with 7 steps
1.1: hydrogenchloride / water
2.1: potassium hydroxide / water / 4 h
2.2: 0.5 h / Cooling with ice-water bath
3.1: ethyl acetate / 1 h / 18 °C / Heating
4.1: hydrogenchloride / dichloromethane; water / 0.33 h
5.1: oxalyl dichloride / N,N-dimethyl-formamide / dichloromethane / 15 - 25 °C
6.1: dichloromethane; water / 0 - 10 °C
7.1: borane-THF / tetrahydrofuran / 20 - 50 °C
7.2: 0.25 h / 0 - 5 °C
7.3: 2.5 h / 0 °C / Reflux
View Scheme
Multi-step reaction with 7 steps
1.1: hydrogenchloride / water
2.1: potassium hydroxide / water / 4 h
2.2: 0.5 h / Cooling with ice-water bath
3.1: acetone / 0.5 h / Reflux; Cooling
4.1: hydrogenchloride / ethyl acetate; water / 0.08 h / pH 3
5.1: oxalyl dichloride / N,N-dimethyl-formamide / dichloromethane / 15 - 25 °C
6.1: dichloromethane; water / 0 - 10 °C
7.1: borane-THF / tetrahydrofuran / 20 - 50 °C
7.2: 0.25 h / 0 - 5 °C
7.3: 2.5 h / 0 °C / Reflux
View Scheme
Multi-step reaction with 7 steps
1.1: hydrogenchloride / water
2.1: potassium hydroxide / water / 4 h
2.2: 0.5 h / Cooling with ice-water bath
3.1: ethyl acetate / 1 h / 18 °C / Heating
4.1: hydrogenchloride / dichloromethane; water / 0.33 h
5.1: oxalyl dichloride / N,N-dimethyl-formamide / dichloromethane / 15 - 25 °C
6.1: dichloromethane; water / 0 - 10 °C
7.1: borane-THF / tetrahydrofuran / 20 - 50 °C
7.2: 0.25 h / 0 - 5 °C
7.3: 2.5 h / 0 °C / Reflux
View Scheme
Multi-step reaction with 7 steps
1.1: hydrogenchloride / water
2.1: potassium hydroxide / water / 4 h
2.2: 0.5 h / Cooling with ice-water bath
3.1: ethyl acetate / Heating
4.1: hydrogenchloride / dichloromethane; water / 0.33 h
5.1: oxalyl dichloride / N,N-dimethyl-formamide / dichloromethane / 15 - 25 °C
6.1: dichloromethane; water / 0 - 10 °C
7.1: borane-THF / tetrahydrofuran / 20 - 50 °C
7.2: 0.25 h / 0 - 5 °C
7.3: 2.5 h / 0 °C / Reflux
View Scheme
(S)-3,4-dimethoxy-bicyclo[4.2.0]octa-1.3,5-triene-7-carboxylic acid chloride
1220993-45-2

(S)-3,4-dimethoxy-bicyclo[4.2.0]octa-1.3,5-triene-7-carboxylic acid chloride

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride
866783-13-3

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: dichloromethane; water / 0 - 10 °C
2.1: borane-THF / tetrahydrofuran / 20 - 50 °C
2.2: 0.25 h / 0 - 5 °C
2.3: 2.5 h / 0 °C / Reflux
View Scheme
3-(2-bromo-4,5-dimethoxyphenyl)propanenitrile
35249-62-8

3-(2-bromo-4,5-dimethoxyphenyl)propanenitrile

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride
866783-13-3

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride

Conditions
ConditionsYield
Multi-step reaction with 7 steps
1.1: n-butyllithium / hexane; tetrahydrofuran / -10 °C / Inert atmosphere
2.1: potassium hydroxide; water / 4 h / Reflux
2.2: 20 °C
3.1: ethyl acetate / 1.25 h / 0 °C / Reflux
4.1: hydrogenchloride / dichloromethane; water / 0.08 h
5.1: oxalyl dichloride / N,N-dimethyl-formamide / dichloromethane / 15 - 25 °C
6.1: dichloromethane; water / 0 - 10 °C
7.1: borane-THF / tetrahydrofuran / 20 - 50 °C
7.2: 0.25 h / 0 - 5 °C
7.3: 2.5 h / 0 °C / Reflux
View Scheme
Multi-step reaction with 7 steps
1.1: n-butyllithium / hexane; tetrahydrofuran / -10 °C / Inert atmosphere
2.1: potassium hydroxide; water / 4 h / Reflux
2.2: 20 °C
3.1: acetone / 0.5 h / Reflux; Cooling
4.1: hydrogenchloride / ethyl acetate; water / 0.08 h / pH 3
5.1: oxalyl dichloride / N,N-dimethyl-formamide / dichloromethane / 15 - 25 °C
6.1: dichloromethane; water / 0 - 10 °C
7.1: borane-THF / tetrahydrofuran / 20 - 50 °C
7.2: 0.25 h / 0 - 5 °C
7.3: 2.5 h / 0 °C / Reflux
View Scheme
Multi-step reaction with 7 steps
1.1: n-butyllithium / hexane; tetrahydrofuran / -10 °C / Inert atmosphere
2.1: potassium hydroxide; water / 4 h / Reflux
2.2: 20 °C
3.1: ethyl acetate / 1 h / 18 °C / Heating
4.1: hydrogenchloride / dichloromethane; water / 0.33 h
5.1: oxalyl dichloride / N,N-dimethyl-formamide / dichloromethane / 15 - 25 °C
6.1: dichloromethane; water / 0 - 10 °C
7.1: borane-THF / tetrahydrofuran / 20 - 50 °C
7.2: 0.25 h / 0 - 5 °C
7.3: 2.5 h / 0 °C / Reflux
View Scheme
Multi-step reaction with 7 steps
1.1: n-butyllithium / hexane; tetrahydrofuran / -10 °C / Inert atmosphere
2.1: potassium hydroxide; water / 4 h / Reflux
2.2: 20 °C
3.1: ethyl acetate / 1 h / 18 °C / Heating
4.1: hydrogenchloride / dichloromethane; water / 0.33 h
5.1: oxalyl dichloride / N,N-dimethyl-formamide / dichloromethane / 15 - 25 °C
6.1: dichloromethane; water / 0 - 10 °C
7.1: borane-THF / tetrahydrofuran / 20 - 50 °C
7.2: 0.25 h / 0 - 5 °C
7.3: 2.5 h / 0 °C / Reflux
View Scheme
Multi-step reaction with 7 steps
1.1: n-butyllithium / hexane; tetrahydrofuran / -10 °C / Inert atmosphere
2.1: potassium hydroxide; water / 4 h / Reflux
2.2: 20 °C
3.1: ethyl acetate / Heating
4.1: hydrogenchloride / dichloromethane; water / 0.33 h
5.1: oxalyl dichloride / N,N-dimethyl-formamide / dichloromethane / 15 - 25 °C
6.1: dichloromethane; water / 0 - 10 °C
7.1: borane-THF / tetrahydrofuran / 20 - 50 °C
7.2: 0.25 h / 0 - 5 °C
7.3: 2.5 h / 0 °C / Reflux
View Scheme
(R)-(3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl)nitrile
1214788-46-1

(R)-(3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl)nitrile

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride
866783-13-3

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / isopropyl alcohol / 2 h / 65 °C
2.1: nitrilase of Rhodococcus erythropolis NCIMB11215 / aq. phosphate buffer; dimethyl sulfoxide / 96 h / 30 °C / pH 7.3 / Enzymatic reaction
3.1: chloroformic acid ethyl ester; triethylamine / tetrahydrofuran / 20 °C
3.2: 20 °C
4.1: borane-THF / tetrahydrofuran / 20 °C
4.2: 4 h
View Scheme
Multi-step reaction with 4 steps
1.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / isopropyl alcohol / 2 h / 65 °C
2.1: nitrilase of Rhodococcus rhodochrous NCIMB11216 / aq. phosphate buffer; dimethyl sulfoxide / 96 h / 30 °C / pH 7.3 / Enzymatic reaction
3.1: chloroformic acid ethyl ester; triethylamine / tetrahydrofuran / 20 °C
3.2: 20 °C
4.1: borane-THF / tetrahydrofuran / 20 °C
4.2: 4 h
View Scheme
Multi-step reaction with 4 steps
1.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / isopropyl alcohol / 2 h / 65 °C
2.1: over-expressed nitrilase of Rhodococcus rhodochrous NCIMB 11216 / aq. phosphate buffer; dimethyl sulfoxide / 6 h / 30 °C / pH 7 / Enzymatic reaction
3.1: chloroformic acid ethyl ester; triethylamine / tetrahydrofuran / 20 °C
3.2: 20 °C
4.1: borane-THF / tetrahydrofuran / 20 °C
4.2: 4 h
View Scheme
(±)-(3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl)methylamine
73344-75-9

(±)-(3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl)methylamine

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride
866783-13-3

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1.1: 1,1'-carbonyldiimidazole / tetrahydrofuran / 0.25 h / 20 °C
1.2: 12 h / 20 °C
2.1: boron trifluoride-tetrahydrofuran complex / tetrahydrofuran / 8 h / 0 - 20 °C
3.1: ethanol / 1 h / Reflux
4.1: sodium hydroxide / ethanol; water; dichloromethane / 1 h / 20 °C / pH 10 - 11
5.1: acetic acid / ethanol / 0.5 h / 20 °C
5.2: 1 h / 15 - 20 °C
View Scheme
Multi-step reaction with 5 steps
1.1: 1,1'-carbonyldiimidazole / tetrahydrofuran / 0.25 h / 20 °C
1.2: 12 h / 20 °C
2.1: boron trifluoride-tetrahydrofuran complex / tetrahydrofuran / 8 h / 0 - 20 °C
3.1: ethanol; Isopropyl acetate / 1 h / Reflux
4.1: sodium hydroxide / water; dichloromethane / 1 h / 20 °C / pH 10 - 11
5.1: acetic acid / ethanol / 0.5 h / 20 °C
5.2: 1 h / 15 - 20 °C
View Scheme
(1S)-4,5-dimethoxy-1-[(methylamino)methyl]benzocyclobutane dextro mandelate

(1S)-4,5-dimethoxy-1-[(methylamino)methyl]benzocyclobutane dextro mandelate

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride
866783-13-3

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: sodium hydroxide / water; dichloromethane / 1 h / 20 °C / pH 10 - 11
2.1: acetic acid / ethanol / 0.5 h / 20 °C
2.2: 1 h / 15 - 20 °C
View Scheme
C12H15NO3

C12H15NO3

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride
866783-13-3

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1.1: boron trifluoride-tetrahydrofuran complex / tetrahydrofuran / 8 h / 0 - 20 °C
2.1: ethanol / 1 h / Reflux
3.1: sodium hydroxide / ethanol; water; dichloromethane / 1 h / 20 °C / pH 10 - 11
4.1: acetic acid / ethanol / 0.5 h / 20 °C
4.2: 1 h / 15 - 20 °C
View Scheme
Multi-step reaction with 4 steps
1.1: boron trifluoride-tetrahydrofuran complex / tetrahydrofuran / 8 h / 0 - 20 °C
2.1: ethanol; Isopropyl acetate / 1 h / Reflux
3.1: sodium hydroxide / water; dichloromethane / 1 h / 20 °C / pH 10 - 11
4.1: acetic acid / ethanol / 0.5 h / 20 °C
4.2: 1 h / 15 - 20 °C
View Scheme
({3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl}methyl)(methyl)amine
148870-56-8

({3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl}methyl)(methyl)amine

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride
866783-13-3

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: ethanol / 1 h / Reflux
2.1: sodium hydroxide / ethanol; water; dichloromethane / 1 h / 20 °C / pH 10 - 11
3.1: acetic acid / ethanol / 0.5 h / 20 °C
3.2: 1 h / 15 - 20 °C
View Scheme
Multi-step reaction with 3 steps
1.1: ethanol; Isopropyl acetate / 1 h / Reflux
2.1: sodium hydroxide / water; dichloromethane / 1 h / 20 °C / pH 10 - 11
3.1: acetic acid / ethanol / 0.5 h / 20 °C
3.2: 1 h / 15 - 20 °C
View Scheme
Multi-step reaction with 2 steps
1.1: 0.75 h / Reflux
2.1: water; dichloromethane / pH 10 - 11
2.2: 0 - 5 °C / pH 1 - 2
View Scheme
1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride
866783-13-3

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride

1-bromo-3-propanol
627-18-9

1-bromo-3-propanol

3-[{[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]methyl}methylamino]-1-propanol
1462470-47-8

3-[{[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]methyl}methylamino]-1-propanol

Conditions
ConditionsYield
With triethylamine In tetrahydrofuran; N,N-dimethyl-formamide at 50℃; for 24h;96%
1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride
866783-13-3

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride

7,8-dimethoxy-3-(3-iodopropyl)-1,3,4,5-tetrahydro-2H-3-benzazepin-2-one

7,8-dimethoxy-3-(3-iodopropyl)-1,3,4,5-tetrahydro-2H-3-benzazepin-2-one

ivabradine
155974-00-8

ivabradine

Conditions
ConditionsYield
Stage #1: 1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride With potassium carbonate In N,N-dimethyl-formamide at 20℃; for 1h;
Stage #2: 7,8-dimethoxy-3-(3-iodopropyl)-1,3,4,5-tetrahydro-2H-3-benzazepin-2-one In N,N-dimethyl-formamide at 20℃; for 6h;
95.8%
With triethylamine In acetonitrile at 20℃; for 12h;
1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride
866783-13-3

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride

7,8-dimethoxy-3-[3-iodopropane]-1,3-dihydro-2H-3-benzazepin-2-one
148870-57-9

7,8-dimethoxy-3-[3-iodopropane]-1,3-dihydro-2H-3-benzazepin-2-one

3-{3-[{[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]methyl}-(methyl)amino]propyl}-7,8-dimethoxy-1,3-dihydro-2H-3-benzazepin-2-one
1086026-31-4

3-{3-[{[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]methyl}-(methyl)amino]propyl}-7,8-dimethoxy-1,3-dihydro-2H-3-benzazepin-2-one

Conditions
ConditionsYield
Stage #1: 1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride With potassium carbonate In water at 30℃;
Stage #2: 7,8-dimethoxy-3-[3-iodopropane]-1,3-dihydro-2H-3-benzazepin-2-one In water at 30 - 60℃; for 24.5h; Reagent/catalyst;
94%
Stage #1: 1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride With potassium carbonate In N,N-dimethyl-formamide at 25 - 30℃; for 1h;
Stage #2: 7,8-dimethoxy-3-[3-iodopropane]-1,3-dihydro-2H-3-benzazepin-2-one In N,N-dimethyl-formamide at 5 - 25℃; for 4h;
75%
With potassium carbonate In acetone at 55 - 58℃; for 3h;
In acetone for 18h; Reflux;
1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride
866783-13-3

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride

1,3-chlorobromopropane
109-70-6

1,3-chlorobromopropane

(S)-3-chloro-N-((3,4-dimethoxybicyclo[4.2,0]octa-1(6),2,4-trien-7-yl)methyl)-N-methylpropan-1-amine
1031767-71-1

(S)-3-chloro-N-((3,4-dimethoxybicyclo[4.2,0]octa-1(6),2,4-trien-7-yl)methyl)-N-methylpropan-1-amine

Conditions
ConditionsYield
Stage #1: 1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride With potassium carbonate In water at 40℃;
Stage #2: 1.3-chlorobromopropane In water at 40℃; for 5h;
94%
1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride
866783-13-3

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride

C17H26ClNO5

C17H26ClNO5

C29H42N2O7

C29H42N2O7

Conditions
ConditionsYield
With potassium carbonate; sodium iodide for 6h; Reflux;91%
1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride
866783-13-3

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride

3-(3-chloropropyl)-1,3-dihydro-7,8-dimethoxy-2H-3-benzazepine-2-one
85175-59-3

3-(3-chloropropyl)-1,3-dihydro-7,8-dimethoxy-2H-3-benzazepine-2-one

3-{3-[{[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]methyl}-(methyl)amino]propyl}-7,8-dimethoxy-1,3-dihydro-2H-3-benzazepin-2-one
1086026-31-4

3-{3-[{[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]methyl}-(methyl)amino]propyl}-7,8-dimethoxy-1,3-dihydro-2H-3-benzazepin-2-one

Conditions
ConditionsYield
With tetrabutylammomium bromide; sodium carbonate; sodium iodide In toluene at 108 - 110℃; for 10h; Temperature; Solvent; Reagent/catalyst;86%
With potassium carbonate; sodium iodide In acetone for 28h; Reflux; Large scale;82.54%
3-(2-[1,3]-dioxolan-2-yl-ethyl)-7,8-dimethoxy-1,3-dihydro-2H-3-benzazepin-2-one

3-(2-[1,3]-dioxolan-2-yl-ethyl)-7,8-dimethoxy-1,3-dihydro-2H-3-benzazepin-2-one

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride
866783-13-3

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride

ivabradine hydrochloride
148849-67-6

ivabradine hydrochloride

Conditions
ConditionsYield
Stage #1: 3-(2-[1,3]-dioxolan-2-yl-ethyl)-7,8-dimethoxy-1,3-dihydro-2H-3-benzazepin-2-one With hydrogen; palladium on activated charcoal In ethanol at 55℃; under 3750.38 Torr;
Stage #2: 1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride In ethanol; water at 20 - 85℃; under 22502.3 Torr;
85%
Stage #1: 3-(2-[1,3]-dioxolan-2-yl-ethyl)-7,8-dimethoxy-1,3-dihydro-2H-3-benzazepin-2-one With palladium on activated charcoal; hydrogen In ethanol at 55℃; under 3750.38 Torr; Autoclave; Large scale;
Stage #2: 1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride With palladium on activated charcoal; hydrogen In ethanol; water at 85℃; under 22502.3 Torr; Autoclave; Large scale;
85%
Stage #1: 3-(2-[1,3]-dioxolan-2-yl-ethyl)-7,8-dimethoxy-1,3-dihydro-2H-3-benzazepin-2-one With palladium on activated charcoal; hydrogen In ethanol at 20 - 55℃; under 3750380 Torr; Autoclave; Inert atmosphere;
Stage #2: 1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride In ethanol; water at 20 - 85℃; under 63756400 Torr; Inert atmosphere;
85%
1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride
866783-13-3

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride

7,8-dimethoxy-3-[3-iodopropane]-1,3-dihydro-2H-3-benzazepin-2-one
148870-57-9

7,8-dimethoxy-3-[3-iodopropane]-1,3-dihydro-2H-3-benzazepin-2-one

3-[3-({[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]methyl}(methyl)amino)propyl]-7,8-dimethoxy-2,3,4,5-tetrahydro-1H-3-benzazepin-2-one hydrochloride

3-[3-({[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]methyl}(methyl)amino)propyl]-7,8-dimethoxy-2,3,4,5-tetrahydro-1H-3-benzazepin-2-one hydrochloride

Conditions
ConditionsYield
Stage #1: 1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride With potassium carbonate In ethyl acetate at 25 - 30℃; for 1h;
Stage #2: 7,8-dimethoxy-3-[3-iodopropane]-1,3-dihydro-2H-3-benzazepin-2-one In ethyl acetate at 5 - 25℃; for 6h;
Stage #3: With palladium 10% on activated carbon; hydrogen In ethyl acetate at 65 - 70℃; for 6h;
85%
3-[2-(1,3-Dioxolan-2-yl)-ethyl]-7,8-dimethoxy-1,3,4,5-tetrahydro-2H-3-benzazepin-2-one

3-[2-(1,3-Dioxolan-2-yl)-ethyl]-7,8-dimethoxy-1,3,4,5-tetrahydro-2H-3-benzazepin-2-one

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride
866783-13-3

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride

ivabradine hydrochloride
148849-67-6

ivabradine hydrochloride

Conditions
ConditionsYield
With palladium on activated charcoal; hydrogen In ethanol; water at 85℃; under 22502.3 Torr; Autoclave;85%
1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride
866783-13-3

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride

7,8-dimethoxy-3-[3-iodopropane]-1,3-dihydro-2H-3-benzazepin-2-one
148870-57-9

7,8-dimethoxy-3-[3-iodopropane]-1,3-dihydro-2H-3-benzazepin-2-one

3-[3-({[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]methyl}(methyl)amino)propyl]-7,8-dimethoxy-1,3-dihydro-2H-3-benzazepin-2-one hydrochloride
1086026-38-1

3-[3-({[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]methyl}(methyl)amino)propyl]-7,8-dimethoxy-1,3-dihydro-2H-3-benzazepin-2-one hydrochloride

Conditions
ConditionsYield
Stage #1: 1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride; 7,8-dimethoxy-3-[3-iodopropane]-1,3-dihydro-2H-3-benzazepin-2-one With potassium carbonate In water; toluene at 70℃; Inert atmosphere;
Stage #2: With hydrogenchloride In water
80%
1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride
866783-13-3

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride

3-(3-chloropropyl)-1,3-dihydro-7,8-dimethoxy-2H-3-benzazepine-2-one
85175-59-3

3-(3-chloropropyl)-1,3-dihydro-7,8-dimethoxy-2H-3-benzazepine-2-one

oxalic acid
144-62-7

oxalic acid

dehydro-ivabradine oxalate
1346558-08-4

dehydro-ivabradine oxalate

Conditions
ConditionsYield
Stage #1: 1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride; 3-(3-chloropropyl)-1,3-dihydro-7,8-dimethoxy-2H-3-benzazepine-2-one With potassium carbonate; sodium iodide In 1-methyl-pyrrolidin-2-one at 20 - 60℃; Inert atmosphere;
Stage #2: oxalic acid In methanol at 20℃; for 2h;
76%
1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride
866783-13-3

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride

(2-{2-[(3-chloropropyl)amino]ethyl}-4,5-dimethoxyphenyl)acetonitrile
1462470-52-5

(2-{2-[(3-chloropropyl)amino]ethyl}-4,5-dimethoxyphenyl)acetonitrile

{2-[2-({3-[{[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]methyl}(methyl)-amino]propyl}amino)ethyl]-4,5-dimethoxyphenyl}acetonitrile
1462470-53-6

{2-[2-({3-[{[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]methyl}(methyl)-amino]propyl}amino)ethyl]-4,5-dimethoxyphenyl}acetonitrile

Conditions
ConditionsYield
With triethylamine In acetonitrile for 6h; Reflux;66%
1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride
866783-13-3

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride

3-(7,8-Dimethoxy-2-oxo-1,2,4,5-tetrahydro-3H-3-benzazepin-3-yl)-propanenitrile
1246638-04-9

3-(7,8-Dimethoxy-2-oxo-1,2,4,5-tetrahydro-3H-3-benzazepin-3-yl)-propanenitrile

N-{[(7S)-3,4-Dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]methyl}-3-(7,8-dimethoxy-2-oxo-1,2,4,5-tetrahydro-3H-3-benzazepin-3-yl)-N-methylpropanimidamide
1246638-11-8

N-{[(7S)-3,4-Dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]methyl}-3-(7,8-dimethoxy-2-oxo-1,2,4,5-tetrahydro-3H-3-benzazepin-3-yl)-N-methylpropanimidamide

Conditions
ConditionsYield
Stage #1: 1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride; 3-(7,8-Dimethoxy-2-oxo-1,2,4,5-tetrahydro-3H-3-benzazepin-3-yl)-propanenitrile With triethylamine; copper(l) chloride In methanol for 24h; Inert atmosphere; Reflux;
Stage #2: With sodium hydroxide In methanol; dichloromethane; water at 20℃;
46%
1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride
866783-13-3

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride

ivabradine hydrochloride
148849-67-6

ivabradine hydrochloride

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: potassium carbonate; sodium iodide / 1-methyl-pyrrolidin-2-one / 20 - 60 °C / Inert atmosphere
1.2: 2 h / 20 °C
2.1: potassium carbonate / water / 0.08 h
2.2: Inert atmosphere
3.1: hydrogenchloride; hydrogen / palladium 10% on activated carbon / water / 6 h / 45 °C / 7500.75 Torr
View Scheme
Multi-step reaction with 2 steps
1: triethylamine / acetonitrile / 12 h / 20 °C
2: hydrogenchloride; pyrographite / acetonitrile / 0.17 h / 70 °C / pH 2 - 3
View Scheme
1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride
866783-13-3

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride

3-{3-[{[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]methyl}-(methyl)amino]propyl}-7,8-dimethoxy-1,3-dihydro-2H-3-benzazepin-2-one
1086026-31-4

3-{3-[{[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]methyl}-(methyl)amino]propyl}-7,8-dimethoxy-1,3-dihydro-2H-3-benzazepin-2-one

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: potassium carbonate; sodium iodide / 1-methyl-pyrrolidin-2-one / 20 - 60 °C / Inert atmosphere
1.2: 2 h / 20 °C
2.1: potassium carbonate / water / 0.08 h
2.2: Inert atmosphere
View Scheme
1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride
866783-13-3

1-[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride

3-{3-[((S)-3,4-dimethoxy-bicyclo[4.2.0]octa-1,3,5-triene-7-ylmethyl)-methyl-amino]-propyl}-7,8-dimethoxy-1,3-dihydro-benzo[d]azepine-2-one nitrate
1346558-09-5

3-{3-[((S)-3,4-dimethoxy-bicyclo[4.2.0]octa-1,3,5-triene-7-ylmethyl)-methyl-amino]-propyl}-7,8-dimethoxy-1,3-dihydro-benzo[d]azepine-2-one nitrate

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: potassium carbonate; sodium iodide / 1-methyl-pyrrolidin-2-one / 20 - 60 °C / Inert atmosphere
1.2: 2 h / 20 °C
2.1: potassium carbonate / water / 0.08 h
2.2: Inert atmosphere
3.1: nitric acid / ethanol; water
View Scheme

(1S)-4,5-Dimethoxy-1-[(methylamino)methyl]benzocyclobutane hydrochloride Chemical Properties

Molecular Structure of Bicyclo[4.2.0]octa-1,3,5-triene-7-methanamine,3,4-dimethoxy-N-methyl-, hydrochloride (1:1), (7S)- (CAS NO.866783-13-3):

Systematic Name: 1-[(7S)-3,4-Dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]-N-methylmethanamine hydrochloride  
Empirical Formula: C12H18ClNO2
Molecular Weight: 243.7298
Nominal Mass: 243
Average Mass: 243.7298
Monoisotopic Mass: 243.102607 
H bond acceptors: 3
H bond donors: 1
Freely Rotating Bonds: 4
Flash Point: 158.6 °C
Enthalpy of Vaporization: 59.35 kJ/mol
Boiling Point: 338.6 °C at 760 mmHg
Vapour Pressure: 6.95E-05 mmHg at 25 °C
SMILES: Cl.O(c1cc2c(cc1OC)[C@@H](CNC)C2)C
InChI: InChI=1/C12H17NO2.ClH/c1-13-7-9-4-8-5-11(14-2)12(15-3)6-10(8)9;/h5-6,9,13H,4,7H2,1-3H3;1H/t9-;/m1./s1
InChIKey: SWSAIQSQSDOONK-SBSPUUFOBL

(1S)-4,5-Dimethoxy-1-[(methylamino)methyl]benzocyclobutane hydrochloride Specification

 Bicyclo[4.2.0]octa-1,3,5-triene-7-methanamine,3,4-dimethoxy-N-methyl-, hydrochloride (1:1), (7S)- (CAS NO.866783-13-3), its Synonyms are (7S)-3,4-Dimethoxy-N-methylbicyclo[4.2.0]octa-1,3,5-triene-7-methanamine hydrochloride ; (1S)-4,5-Dimethoxy-1-[(methylamino)methyl]benzocyclobutane hydrochloride .

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