Product Name

  • Name

    Ramipril

  • EINECS 642-904-3
  • CAS No. 87333-19-5
  • Article Data20
  • CAS DataBase
  • Density 1.2 g/cm3
  • Solubility
  • Melting Point 106-108 °C
  • Formula C23H32N2O5
  • Boiling Point 616.2 °C at 760 mmHg
  • Molecular Weight 416.517
  • Flash Point 326.4 °C
  • Transport Information
  • Appearance White solid
  • Safety 26-37/39
  • Risk Codes 36/38
  • Molecular Structure Molecular Structure of 87333-19-5 (Ramipril)
  • Hazard Symbols IrritantXi
  • Synonyms Altace;Hytren;Carasel;Cardace;Vesdil;Pramace;Cyclopenta(b)pyrrole-2-carboxylic acid, 1-(2-((1-(ethoxycarbonyl)-3-phenylpropyl)amino)-1-oxopropyl)octahydro-, (2S-(1(R*(R*)),2alpha,3abeta,6abeta))-;Quark;HOE 498;Triatec;Acovil;(2S-(1(R*(R*)),2alpha,3abeta,6abeta))-1-(2-((1-(Ethoxycarbonyl)-3-phenylpropyl)amino)-1-oxopropyl)octahydrocyclopenta(b)pyrrole-2-carboxylic acid.;
  • PSA 95.94000
  • LogP 2.71200

Synthetic route

2--L-alanyl>-(1S,3S,5S)-2-azabicyclo<3.3.0>octane-3-carboxylic acid benzylester
87269-88-3

2--L-alanyl>-(1S,3S,5S)-2-azabicyclo<3.3.0>octane-3-carboxylic acid benzylester

Ramipril
87333-19-5

Ramipril

Conditions
ConditionsYield
With hydrogen; palladium on activated charcoal In ethanol at 0 - 10℃; under 1838.94 - 2206.73 Torr;95%
With hydrogen; palladium 10% on activated carbon In methanol at 20℃; under 760.051 Torr; for 1.5h; Product distribution / selectivity;80%
With hydrogen; 3% Pd/C In ethanol at 20 - 25℃; under 760.051 Torr; for 1 - 3h; Product distribution / selectivity;78%
(2S,3aS,6aS)-1-[(S)-2-[[(S)-1-(ethoxycarbonyl)-3-phenylpropyl]-amino]propanoyl]octahydrocyclopenta[b]pyrrole-2-carboxylic acid monohydrate

(2S,3aS,6aS)-1-[(S)-2-[[(S)-1-(ethoxycarbonyl)-3-phenylpropyl]-amino]propanoyl]octahydrocyclopenta[b]pyrrole-2-carboxylic acid monohydrate

Ramipril
87333-19-5

Ramipril

Conditions
ConditionsYield
at 40℃; under 2 Torr; for 10 - 12h; Product distribution / selectivity;94%
N-[(S)-1-carbethoxy-3-phenyl-propyl]-S-alaninoyl chloride hydrochloride
114192-42-6

N-[(S)-1-carbethoxy-3-phenyl-propyl]-S-alaninoyl chloride hydrochloride

(2S,3aS,6aS)-1-(tert-butoxycarbonyl)octahydrocyclopenta[b]pyrrole-2-carboxylic acid
109428-53-7

(2S,3aS,6aS)-1-(tert-butoxycarbonyl)octahydrocyclopenta[b]pyrrole-2-carboxylic acid

Ramipril
87333-19-5

Ramipril

Conditions
ConditionsYield
Stage #1: (2S,3aS,6aS)-1-(tert-butoxycarbonyl)octahydrocyclopenta[b]pyrrole-2-carboxylic acid With sodium ethanolate; triethylamine In ethanol at -40℃;
Stage #2: N-[(S)-1-carbethoxy-3-phenyl-propyl]-S-alaninoyl chloride hydrochloride In ethanol; dichloromethane at -50 - 20℃; for 1.08333h;
Stage #3: With hydrogenchloride In water pH=4.2; Acidic aqueous solution;
88%
C8H13NO2*(x)ClH

C8H13NO2*(x)ClH

N-[1-(S)-ethoxycarbonyl-3-phenylpropyl]-L-alanine N-carboxyanhydride
84793-24-8

N-[1-(S)-ethoxycarbonyl-3-phenylpropyl]-L-alanine N-carboxyanhydride

Ramipril
87333-19-5

Ramipril

Conditions
ConditionsYield
With sodium hydroxide In water at 10 - 15℃; pH=8.5 - 9.5;74%
benzyl (2S,3AS,6AS)-octahydrocyclopenta[b]pyrrole-2-carboxylate hydrochloride
87269-87-2, 87679-25-2, 88547-79-9, 93779-29-4, 94569-19-4, 138877-09-5

benzyl (2S,3AS,6AS)-octahydrocyclopenta[b]pyrrole-2-carboxylate hydrochloride

N-[1-(S)-ethoxycarbonyl-3-phenylpropyl]-L-alanine N-carboxyanhydride
84793-24-8

N-[1-(S)-ethoxycarbonyl-3-phenylpropyl]-L-alanine N-carboxyanhydride

Ramipril
87333-19-5

Ramipril

Conditions
ConditionsYield
With acetic acid; triethylamine In ethyl acetate at 5 - 20℃; for 4h;74%
[1(S)-(ethoxycarbonyl)-3-phenylpropyl]-(S)-alanine
82717-96-2

[1(S)-(ethoxycarbonyl)-3-phenylpropyl]-(S)-alanine

Ramipril
87333-19-5

Ramipril

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: triphenylphosphine / CH2Cl2 / 0.75 h
1.2: 45 percent / CH2Cl2 / 2.5 h / 25 - 30 °C
2.1: triethylamine / CH2Cl2 / 4 h / -15 - -10 °C
3.1: hydrogen / Pd/C
View Scheme
N-[1(S)-ethoxycarbonyl-3-phenylpropyl]-(S)-alanine-2'-benzothiazolylthio ester
124492-03-1

N-[1(S)-ethoxycarbonyl-3-phenylpropyl]-(S)-alanine-2'-benzothiazolylthio ester

Ramipril
87333-19-5

Ramipril

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: triethylamine / CH2Cl2 / 4 h / -15 - -10 °C
2: hydrogen / Pd/C
View Scheme
ethyl (E)-4-oxo-4-phenyl-2-butenoate
15121-89-8

ethyl (E)-4-oxo-4-phenyl-2-butenoate

Ramipril
87333-19-5

Ramipril

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: 1.) 2N NaOH, 2.) N(C2H5)3 / 1.) methylene chloride, 2.) ethanol, 2 h
2: 90 percent / H2, 1.6percent H2SO4 / 10percent Pd/C / acetic acid / 7 h / 30002.4 Torr / Ambient temperature
3: 95 percent / K2CO3, 25percent ethylmethylphosphinic anhydride / H2O; CH2Cl2
4: H2 / 10percent Pd/C / methanol / 0.5 h / 750.06 - 3750.3 Torr / Ambient temperature
View Scheme
benzyl (2S,3AS,6AS)-octahydrocyclopenta[b]pyrrole-2-carboxylate hydrochloride
87269-87-2, 87679-25-2, 88547-79-9, 93779-29-4, 94569-19-4, 138877-09-5

benzyl (2S,3AS,6AS)-octahydrocyclopenta[b]pyrrole-2-carboxylate hydrochloride

Ramipril
87333-19-5

Ramipril

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 95 percent / K2CO3, 25percent ethylmethylphosphinic anhydride / H2O; CH2Cl2
2: H2 / 10percent Pd/C / methanol / 0.5 h / 750.06 - 3750.3 Torr / Ambient temperature
View Scheme
(1RS,3RS,5RS)-2-Azabicyclo<3.3.0>octan-3-carbonsaeurebenzylester-hydrochlorid
87269-87-2, 87679-25-2, 88547-79-9, 93779-29-4, 94569-19-4, 138877-09-5

(1RS,3RS,5RS)-2-Azabicyclo<3.3.0>octan-3-carbonsaeurebenzylester-hydrochlorid

Ramipril
87333-19-5

Ramipril

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: 67.8 g / 1.) 10percent NaOH 2.) 6N HCl / CH2Cl2; ethyl acetate
2: 95 percent / K2CO3, 25percent ethylmethylphosphinic anhydride / H2O; CH2Cl2
3: H2 / 10percent Pd/C / methanol / 0.5 h / 750.06 - 3750.3 Torr / Ambient temperature
View Scheme
(1'S,2S)-2-(1'-Methyl-2'-oxo-2'-phenylmethoxy-ethylamino)-4-oxo-4-phenyl-buttersaeure-ethylester
87269-98-5

(1'S,2S)-2-(1'-Methyl-2'-oxo-2'-phenylmethoxy-ethylamino)-4-oxo-4-phenyl-buttersaeure-ethylester

Ramipril
87333-19-5

Ramipril

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: 90 percent / H2, 1.6percent H2SO4 / 10percent Pd/C / acetic acid / 7 h / 30002.4 Torr / Ambient temperature
2: 95 percent / K2CO3, 25percent ethylmethylphosphinic anhydride / H2O; CH2Cl2
3: H2 / 10percent Pd/C / methanol / 0.5 h / 750.06 - 3750.3 Torr / Ambient temperature
View Scheme
N-[(1S)-1-ethoxycarbonyl-3-phenyl-3-oxopropyl]-L-alanine
87269-99-6

N-[(1S)-1-ethoxycarbonyl-3-phenyl-3-oxopropyl]-L-alanine

Ramipril
87333-19-5

Ramipril

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 95 percent / K2CO3, 25percent ethylmethylphosphinic anhydride / H2O; CH2Cl2
2: H2 / 10percent Pd/C / methanol / 0.5 h / 750.06 - 3750.3 Torr / Ambient temperature
View Scheme
(1RS,3RS,5RS)-2-Azabicyclo<3.3.0>octan-3-carbonsaeure-hydrochlorid
87269-86-1, 87758-19-8, 93779-30-7, 94062-51-8, 96893-64-0, 135214-81-2

(1RS,3RS,5RS)-2-Azabicyclo<3.3.0>octan-3-carbonsaeure-hydrochlorid

N-[1-(S)-ethoxycarbonyl-3-phenylpropyl]-L-alanine N-carboxyanhydride
84793-24-8

N-[1-(S)-ethoxycarbonyl-3-phenylpropyl]-L-alanine N-carboxyanhydride

A

ramipril
129939-63-5

ramipril

B

Ramipril
87333-19-5

Ramipril

Conditions
ConditionsYield
With triethylamine In dichloromethane at 20℃;
(2S)-2,3,3a,4,5,6-hexahydrocyclopenta[b]pyrrole-2-carboxylic acid

(2S)-2,3,3a,4,5,6-hexahydrocyclopenta[b]pyrrole-2-carboxylic acid

(S,S,S)-2-azabicyclo<3.3.0>octane-3-carboxylic acid hydrochloride
87269-86-1

(S,S,S)-2-azabicyclo<3.3.0>octane-3-carboxylic acid hydrochloride

N-[1-(S)-ethoxycarbonyl-3-phenylpropyl]-L-alanine N-carboxyanhydride
84793-24-8

N-[1-(S)-ethoxycarbonyl-3-phenylpropyl]-L-alanine N-carboxyanhydride

Ramipril
87333-19-5

Ramipril

Conditions
ConditionsYield
Stage #1: (2S)-2,3,3a,4,5,6-hexahydrocyclopenta[b]pyrrole-2-carboxylic acid; (S,S,S)-2-azabicyclo<3.3.0>octane-3-carboxylic acid hydrochloride With sodium hydroxide; hydrogenation catalyst In water at 20 - 25℃; pH=10 - 11;
Stage #2: N-[1-(S)-ethoxycarbonyl-3-phenylpropyl]-L-alanine N-carboxyanhydride In water at 20 - 25℃; for 3 - 4h; pH=10 - 11;
Stage #3: With hydrogenchloride In water at 15 - 20℃; for 2.5 - 2.75h; pH=4.4 - 5.2; Product distribution / selectivity;
benzyl (1S,3S,5S)-2-azabicyclo<3.3.0>octane-3-carboxylate
93779-31-8

benzyl (1S,3S,5S)-2-azabicyclo<3.3.0>octane-3-carboxylate

[1(S)-(ethoxycarbonyl)-3-phenylpropyl]-(S)-alanine
82717-96-2

[1(S)-(ethoxycarbonyl)-3-phenylpropyl]-(S)-alanine

Ramipril
87333-19-5

Ramipril

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: hydrogenchloride; (chloromethylene)dimethyliminium chloride / N,N-dimethyl-formamide; dichloromethane / 0.42 h / -10 °C / Inert atmosphere
1.2: Inert atmosphere
2.1: hydrogen; palladium 10% on activated carbon / methanol / 20 °C / Inert atmosphere
View Scheme
(2S)-2,3,3a,4,5,6-hexahydrocyclopenta[b]pyrrole-2-carboxylic acid hydrochloride

(2S)-2,3,3a,4,5,6-hexahydrocyclopenta[b]pyrrole-2-carboxylic acid hydrochloride

Ramipril
87333-19-5

Ramipril

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: 5%-palladium/activated carbon; hydrogen / acetic acid / 40 - 60 °C / 3750.38 - 4500.45 Torr
2: thionyl chloride / 0 - 30 °C
3: benzotriazol-1-ol; 4-methyl-morpholine; dicyclohexyl-carbodiimide / toluene / 1 h / 0 - 5 °C
4: 5%-palladium/activated carbon; hydrogen / ethanol / 20 - 22 °C / 2327.23 - 2585.81 Torr
View Scheme
(S,S,S)-2-azabicyclo<3.3.0>octane-3-carboxylic acid hydrochloride
87269-86-1

(S,S,S)-2-azabicyclo<3.3.0>octane-3-carboxylic acid hydrochloride

Ramipril
87333-19-5

Ramipril

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: thionyl chloride / 0 - 30 °C
2: benzotriazol-1-ol; 4-methyl-morpholine; dicyclohexyl-carbodiimide / toluene / 1 h / 0 - 5 °C
3: 5%-palladium/activated carbon; hydrogen / ethanol / 20 - 22 °C / 2327.23 - 2585.81 Torr
View Scheme
[1(S)-(ethoxycarbonyl)-3-phenylpropyl]-(S)-alanine
82717-96-2

[1(S)-(ethoxycarbonyl)-3-phenylpropyl]-(S)-alanine

benzyl (2S,3AS,6AS)-octahydrocyclopenta[b]pyrrole-2-carboxylate hydrochloride
87269-87-2, 87679-25-2, 88547-79-9, 93779-29-4, 94569-19-4, 138877-09-5

benzyl (2S,3AS,6AS)-octahydrocyclopenta[b]pyrrole-2-carboxylate hydrochloride

Ramipril
87333-19-5

Ramipril

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: benzotriazol-1-ol; 4-methyl-morpholine; dicyclohexyl-carbodiimide / toluene / 1 h / 0 - 5 °C
2: 5%-palladium/activated carbon; hydrogen / ethanol / 20 - 22 °C / 2327.23 - 2585.81 Torr
View Scheme
(2S)-2,3,3a,4,5,6-hexahydrocyclopenta[b]pyrrole-2-carboxylic acid p-toluene sulfonic acid salt

(2S)-2,3,3a,4,5,6-hexahydrocyclopenta[b]pyrrole-2-carboxylic acid p-toluene sulfonic acid salt

Ramipril
87333-19-5

Ramipril

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1.1: hydrogen / water / 55 - 60 °C / 4125.41 - 4500.45 Torr
2.1: water / 1 h / 15 - 55 °C
2.2: 0 - 5 °C
3.1: benzotriazol-1-ol; 4-methyl-morpholine; dicyclohexyl-carbodiimide / toluene / 1 h / 0 - 5 °C
4.1: 5%-palladium/activated carbon; hydrogen / ethanol / 20 - 22 °C / 2327.23 - 2585.81 Torr
View Scheme
(±)-methyl 2-(acetylamino)-3-(2-oxocyclopentyl)-propionate
87269-85-0

(±)-methyl 2-(acetylamino)-3-(2-oxocyclopentyl)-propionate

Ramipril
87333-19-5

Ramipril

Conditions
ConditionsYield
Multi-step reaction with 6 steps
1: immozyme alkaline serine endopeptidase; sodium carbonate / water / 20 h / 24 - 26 °C / pH 6.2 - 6.8 / Enzymatic reaction
2: hydrogenchloride / water / 3 h / Reflux
3: 5%-palladium/activated carbon; hydrogen / acetic acid / 40 - 60 °C / 3750.38 - 4500.45 Torr
4: thionyl chloride / 0 - 30 °C
5: benzotriazol-1-ol; 4-methyl-morpholine; dicyclohexyl-carbodiimide / toluene / 1 h / 0 - 5 °C
6: 5%-palladium/activated carbon; hydrogen / ethanol / 20 - 22 °C / 2327.23 - 2585.81 Torr
View Scheme
(2S,3aS,6aS)-octahydrocyclopenta[b]pyrrole-2-carboxylic acid p-toluene sulfonic acid salt

(2S,3aS,6aS)-octahydrocyclopenta[b]pyrrole-2-carboxylic acid p-toluene sulfonic acid salt

Ramipril
87333-19-5

Ramipril

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: water / 1 h / 15 - 55 °C
1.2: 0 - 5 °C
2.1: benzotriazol-1-ol; 4-methyl-morpholine; dicyclohexyl-carbodiimide / toluene / 1 h / 0 - 5 °C
3.1: 5%-palladium/activated carbon; hydrogen / ethanol / 20 - 22 °C / 2327.23 - 2585.81 Torr
View Scheme
(2S,3aS,6aS)-1-(tert-butoxycarbonyl)octahydrocyclopenta[b]pyrrole-2-carboxylic acid
109428-53-7

(2S,3aS,6aS)-1-(tert-butoxycarbonyl)octahydrocyclopenta[b]pyrrole-2-carboxylic acid

N-[1-(S)-ethoxycarbonyl-3-phenylpropyl]-L-alanine N-carboxyanhydride
84793-24-8

N-[1-(S)-ethoxycarbonyl-3-phenylpropyl]-L-alanine N-carboxyanhydride

Ramipril
87333-19-5

Ramipril

(2S)-2,3,3a,4,5,6-hexahydrocyclopenta[b]pyrrole-2-carboxylic acid

(2S)-2,3,3a,4,5,6-hexahydrocyclopenta[b]pyrrole-2-carboxylic acid

Ramipril
87333-19-5

Ramipril

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1.1: water / Reflux
2.1: hydrogen / water / 55 - 60 °C / 4125.41 - 4500.45 Torr
3.1: water / 1 h / 15 - 55 °C
3.2: 0 - 5 °C
4.1: benzotriazol-1-ol; 4-methyl-morpholine; dicyclohexyl-carbodiimide / toluene / 1 h / 0 - 5 °C
5.1: 5%-palladium/activated carbon; hydrogen / ethanol / 20 - 22 °C / 2327.23 - 2585.81 Torr
View Scheme
(+)-(2S)-acetylamino-3-(2-oxocyclopentyl)propionic acid

(+)-(2S)-acetylamino-3-(2-oxocyclopentyl)propionic acid

Ramipril
87333-19-5

Ramipril

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: hydrogenchloride / water / 3 h / Reflux
2: 5%-palladium/activated carbon; hydrogen / acetic acid / 40 - 60 °C / 3750.38 - 4500.45 Torr
3: thionyl chloride / 0 - 30 °C
4: benzotriazol-1-ol; 4-methyl-morpholine; dicyclohexyl-carbodiimide / toluene / 1 h / 0 - 5 °C
5: 5%-palladium/activated carbon; hydrogen / ethanol / 20 - 22 °C / 2327.23 - 2585.81 Torr
View Scheme
(2S,3aS,6aS)-cyclopenta[b]pyrrole-2-carboxylic acid benzyl ester hydrochloride

(2S,3aS,6aS)-cyclopenta[b]pyrrole-2-carboxylic acid benzyl ester hydrochloride

N-[1-(S)-ethoxycarbonyl-3-phenylpropyl]-L-alanine N-carboxyanhydride
84793-24-8

N-[1-(S)-ethoxycarbonyl-3-phenylpropyl]-L-alanine N-carboxyanhydride

Ramipril
87333-19-5

Ramipril

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: sodium hydrogencarbonate / water; ethyl acetate / 0.08 h / 15 °C
1.2: 1.08 h / 20 °C
2.1: hydrogen; palladium 10% on activated carbon / methanol / 15 - 20 °C / 760.05 Torr
View Scheme
(2S,3aS,6aS)-cyclopenta[b]pyrrole-2-carboxylic acid benzyl ester hydrochloride

(2S,3aS,6aS)-cyclopenta[b]pyrrole-2-carboxylic acid benzyl ester hydrochloride

[1(S)-(ethoxycarbonyl)-3-phenylpropyl]-(S)-alanine
82717-96-2

[1(S)-(ethoxycarbonyl)-3-phenylpropyl]-(S)-alanine

Ramipril
87333-19-5

Ramipril

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: hydrogenchloride; thionyl chloride; N,N-dimethyl-formamide / dichloromethane / 0 h / -10 - -5 °C / Inert atmosphere
1.2: 0.01 h
2.1: hydrogen; palladium 10% on activated carbon / methanol / 15 - 20 °C / 760.05 Torr
View Scheme
L-arginine
74-79-3

L-arginine

Ramipril
87333-19-5

Ramipril

ramipril-(L)-arginine

ramipril-(L)-arginine

Conditions
ConditionsYield
In water; isopropyl alcohol at 20℃; for 0.5h;98%
In butanone for 0.5h; Product distribution / selectivity; Heating / reflux;
Ramipril
87333-19-5

Ramipril

(2S,3aS,6aS)-1-[(S)-2-[[(S)-1-(ethoxycarbonyl)-3-phenylpropyl]-amino]propanoyl]octahydrocyclopenta[b]pyrrole-2-carboxylic acid monohydrate

(2S,3aS,6aS)-1-[(S)-2-[[(S)-1-(ethoxycarbonyl)-3-phenylpropyl]-amino]propanoyl]octahydrocyclopenta[b]pyrrole-2-carboxylic acid monohydrate

Conditions
ConditionsYield
With water In di-isopropyl ether for 1 - 1.5h; Product distribution / selectivity;86%
With water for 1 - 1.5h; Product distribution / selectivity;86%
With water In formaldehyde diethyl acetal for 1 - 1.5h; Product distribution / selectivity;85%
Ramipril
87333-19-5

Ramipril

tert-butylamine
75-64-9

tert-butylamine

ramipril tert-butylamine salt
1028843-42-6

ramipril tert-butylamine salt

Conditions
ConditionsYield
In water; ethyl acetate at 20 - 40℃;79%
In ethyl acetate at 10℃; for 1h;67%
In ethyl acetate at 50 - 70℃;
Ramipril
87333-19-5

Ramipril

2-amino-2-hydroxymethyl-1,3-propanediol
77-86-1

2-amino-2-hydroxymethyl-1,3-propanediol

ramipril tris(hydroxymethyl)aminomethane salt
1187092-62-1

ramipril tris(hydroxymethyl)aminomethane salt

Conditions
ConditionsYield
In ethanol; water at 20 - 40℃;75%
1,1-Diphenylethylene
530-48-3

1,1-Diphenylethylene

Ramipril
87333-19-5

Ramipril

3-((2S,3aS,6aS)-1-(((S)-1-ethoxy-1-oxo-4-phenylbutan-2-yl)-L-alanyl)octahydrocyclopenta[b]pyrrol-2-yl)-2,2-diphenylpropanoic acid

3-((2S,3aS,6aS)-1-(((S)-1-ethoxy-1-oxo-4-phenylbutan-2-yl)-L-alanyl)octahydrocyclopenta[b]pyrrol-2-yl)-2,2-diphenylpropanoic acid

Conditions
ConditionsYield
With [4,4′-bis(1,1-dimethylethyl)-2,2′-bipyridine-N1,N1′]bis{3,5-difluoro-2-[5-(trifluoromethyl)-2-pyridinyl-κN]phenyl-κC}iridium(III) hexafluorophosphate; cesium fluoride In N,N-dimethyl acetamide at 25 - 30℃; for 8h; Irradiation; Inert atmosphere; Schlenk technique; Molecular sieve; regioselective reaction;72%
Ramipril
87333-19-5

Ramipril

C23H38N2O5

C23H38N2O5

Conditions
ConditionsYield
With platinum(IV) oxide; hydrogen; acetic acid In ethanol at 30℃; under 1292.9 - 1551.49 Torr; for 24h; Temperature;66%
Ramipril
87333-19-5

Ramipril

ramipril-ammonia
1028843-43-7

ramipril-ammonia

Conditions
ConditionsYield
With ammonia In ethanol; ethyl acetate at 32.5 - 37.5℃; for 1h;57%
benzyl bicyclo[1.1.0]butane-1-carboxylate

benzyl bicyclo[1.1.0]butane-1-carboxylate

Ramipril
87333-19-5

Ramipril

benzyl 3-((3aR,6aR)-1-(((R)-1-ethoxy-1-oxo-4-phenylbutan-2-yl)-D-alanyl)octahydrocyclopenta[b]pyrrol-2-yl)cyclobutane-1-carboxylate

benzyl 3-((3aR,6aR)-1-(((R)-1-ethoxy-1-oxo-4-phenylbutan-2-yl)-D-alanyl)octahydrocyclopenta[b]pyrrol-2-yl)cyclobutane-1-carboxylate

Conditions
ConditionsYield
With [4,4’-bis(1,1-dimethylethyl)-2,2’-bipyridine-N1,N1‘]bis [3,5-difluoro-2-[5-(trifluoromethyl)-2-pyridinyl-N]phenyl-C]iridium(III) hexafluorophosphate; caesium carbonate In N,N-dimethyl acetamide; water for 24h; Sealed tube; Irradiation; Inert atmosphere;31%
Ramipril
87333-19-5

Ramipril

ramiprilate
87269-97-4

ramiprilate

Conditions
ConditionsYield
at 37℃; esterase from various rat tissue homogenates or plasma;
With porcine liver esterase In phosphate buffer at 37℃; pH=8.6;
Stage #1: Ramipril With sodium hydroxide In methanol; water at 60℃; for 0.0833333h;
Stage #2: In methanol; water Acidic conditions;
With recombinant human carboxylesterase 1; water In aq. phosphate buffer at 37℃; for 0.133333h; Kinetics; Enzymatic reaction;
Ramipril
87333-19-5

Ramipril

ramipril diketopiperazine

ramipril diketopiperazine

Conditions
ConditionsYield
In isopropyl alcohol Heating; Yield given;
Stage #1: Ramipril With hydrogenchloride; water In methanol at 80℃; for 30h;
Stage #2: In methanol Acidic conditions;
L-lysine
56-87-1

L-lysine

Ramipril
87333-19-5

Ramipril

ramipril-(L)-lysine

ramipril-(L)-lysine

Conditions
ConditionsYield
In butanone for 0.5h; Heating / reflux;
Ramipril
87333-19-5

Ramipril

(2S,3aS,6aS)-1[(S)-N-[(S)-1-carboxy-3-phenylpropyl]alanyl]octahydrocyclopenta[b]pyrrole-2-carboxylic acid 1-ethyl ester sodium salt
934623-96-8

(2S,3aS,6aS)-1[(S)-N-[(S)-1-carboxy-3-phenylpropyl]alanyl]octahydrocyclopenta[b]pyrrole-2-carboxylic acid 1-ethyl ester sodium salt

Conditions
ConditionsYield
With sodium hydrogencarbonate In water at 20℃; for 1h;
Ramipril
87333-19-5

Ramipril

ramipril hemicalcium

ramipril hemicalcium

Conditions
ConditionsYield
With calcium hydroxide In butanone for 1h; Heating / reflux;
Ramipril
87333-19-5

Ramipril

(R)-2-[(2-aminoethoxy)methyl]4-(2-chlorophenyl)-1,4-dihydro-6-methyl-3,5-pyridinedicarboxylic acid 3-ethyl 5-methyl ester
103129-81-3

(R)-2-[(2-aminoethoxy)methyl]4-(2-chlorophenyl)-1,4-dihydro-6-methyl-3,5-pyridinedicarboxylic acid 3-ethyl 5-methyl ester

ramipril-amlodipine salt
1029898-76-7

ramipril-amlodipine salt

Conditions
ConditionsYield
In ethyl acetate at 20℃; for 0.0333333h;
Ramipril
87333-19-5

Ramipril

amlodipine
103129-82-4

amlodipine

ramipril-amlodipine salt
1029898-78-9

ramipril-amlodipine salt

Conditions
ConditionsYield
In ethyl acetate at 20℃; for 0.0333333h;

Ramipril Specification

The IUPAC name of Ramipril is (2S,3aS,6aS)-1-[(2S)-2-[[(2S)-1-ethoxy-1-oxo-4-phenylbutan-2-yl]amino]propanoyl]-3,3a,4,5,6,6a-hexahydro-2H-cyclopenta[b]pyrrole-2-carboxylic acid. With the CAS registry number 87333-19-5, it is also named as Cyclopenta(b)pyrrole-2-carboxylic acid, 1-(2-((1-(ethoxycarbonyl)-3-phenylpropyl)amino)-1-oxopropyl)octahydro-, (2S-(1(R*(R*)),2alpha,3abeta,6abeta))-; Lostapres. The product's categories are active pharmaceutical ingredients, ramipril, aromatics, heterocycles, intermediates & fine chemicals, pharmaceuticals and angiotensin. It is white solid.

The other characteristics of this product can be summarized as: (1)ACD/LogP: 3.41; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 1.24; (4)ACD/BCF (pH 5.5): 1.57; (5)ACD/BCF (pH 7.4): 1; (6)ACD/KOC (pH 5.5): 11.66; (7)ACD/KOC (pH 7.4): 1; (8)#H bond acceptors: 7; (9)#H bond donors: 2; (10)#Freely Rotating Bonds: 10; (11)Index of Refraction: 1.555; (12)Molar Refractivity: 111.41 cm3; (13)Molar Volume: 346.8 cm3; (14)Polarizability: 44.16×10-24 cm3; (15)Surface Tension: 50.1 dyne/cm; (16)Enthalpy of Vaporization: 96.09 kJ/mol; (17)Vapour Pressure: 4.86E-16 mmHg at 25°C; (18)Rotatable Bond Count: 10; (19)Exact Mass: 416.231122; (20)MonoIsotopic Mass: 416.231122; (21)Topological Polar Surface Area: 95.9; (22)Heavy Atom Count: 30.

Uses of Ramipril: It is an angiotensin-converting enzyme (ACE) inhibitor which is used to treat hypertension and congestive heart failure. ACE inhibitors lower the production of angiotensin II, therefore relaxing arterial muscles while at the same time enlarging the arteries, allowing the heart to pump blood more easily, and increasing blood flow due to more blood being pumped into and through larger passageways.

When you are using this chemical, please be cautious about it as the following: 
It is irritating to eyes and skin. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. If you want to contact this product, you must wear suitable gloves and eye/face protection.

People can use the following data to convert to the molecule structure.
1. SMILES: O=C(OCC)[C@@H](N[C@H](C(=O)N1[C@H](C(=O)O)C[C@@H]2CCC[C@H]12)C)CCc3ccccc3;
2. InChI: InChI=1/C23H32N2O5/c1-3-30-23(29)18(13-12-16-8-5-4-6-9-16)24-15(2)21(26)25-19-11-7-10-17(19)14-20(25)22(27)28/h4-6,8-9,15,17-20,24H,3,7,10-14H2,1-2H3,(H,27,28)/t15-,17-,18-,19-,20-/m0/s1.

The following is the toxicity data which has been tested.

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
dog LD50 intravenous > 250mg/kg (250mg/kg)   New Cardiovascular Drugs. Vol. 5, Pg. 57, 1987.
dog LD50 oral > 1gm/kg (1000mg/kg)   Arzneimittel-Forschung. Drug Research. Vol. 38, Pg. 14, 1988.
mouse LD50 intravenous 1100mg/kg (1100mg/kg)   New Cardiovascular Drugs. Vol. 5, Pg. 57, 1987.
mouse LD50 oral 10048mg/kg (10048mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

LUNGS, THORAX, OR RESPIRATION: DYSPNEA
Arzneimittel-Forschung. Drug Research. Vol. 38, Pg. 14, 1988.
 
rat LD50 intravenous 600mg/kg (600mg/kg)   New Cardiovascular Drugs. Vol. 5, Pg. 57, 1987.
rat LD50 oral > 10gm/kg (10000mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) Arzneimittel-Forschung. Drug Research. Vol. 38, Pg. 14, 1988.
 

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