Product Name

  • Name

    2',2'-Difluoro-2'-deoxycytidine-3',5'-dibenzoate

  • EINECS 603-873-1
  • CAS No. 134790-39-9
  • Article Data5
  • CAS DataBase
  • Density 1.459 g/cm3
  • Solubility
  • Melting Point 229-232°C
  • Formula C23H19F2N3O6
  • Boiling Point 608.383 °C at 760 mmHg
  • Molecular Weight 471.417
  • Flash Point 321.739 °C
  • Transport Information
  • Appearance Tan solid
  • Safety
  • Risk Codes
  • Molecular Structure Molecular Structure of 134790-39-9 (2',2'-Difluoro-2'-deoxycytidine-3',5'-dibenzoate)
  • Hazard Symbols
  • Synonyms 3',5'-Di-O-benzoyl-2'-deoxy-2',2'-difluorocytidine; 2'-deoxy-2,2'-difluoro-3,5-dibenzyl-cytidine; Chloropurine riboside; GeMcitabine InterMediate 9;
  • PSA 122.74000
  • LogP 3.02200

Synthetic route

3,5-di-O-benzoyl-2-deoxy-2,2-difluoro-1-O-methanesulfonyl-D-erythro-pentofuranose
134877-42-2, 134877-43-3, 122111-11-9

3,5-di-O-benzoyl-2-deoxy-2,2-difluoro-1-O-methanesulfonyl-D-erythro-pentofuranose

2,4-O,N-bis(trimethylsilyl)cytosine
18037-10-0

2,4-O,N-bis(trimethylsilyl)cytosine

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate
134790-39-9

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate

Conditions
ConditionsYield
In toluene at 120℃; for 6h; Temperature;97.38%
4-Amino-1-trimethylsilanyl-1H-pyrimidin-2-one
73416-12-3

4-Amino-1-trimethylsilanyl-1H-pyrimidin-2-one

2-deoxy-2,2-difluoro-D-erythro-pentofuranose-3,5-diphenylmethyl ester-1-methanesulfonate
134877-42-2

2-deoxy-2,2-difluoro-D-erythro-pentofuranose-3,5-diphenylmethyl ester-1-methanesulfonate

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate
134790-39-9

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate

Conditions
ConditionsYield
With phosphomolybdic acid In pentan-1-ol at 70 - 137℃; for 5h; Reagent/catalyst; Solvent; Temperature; Reflux;95%
2-deoxy-2,2-difluoro-D-erythro-pentofuranose-3,5-diphenylmethyl ester-1-methanesulfonate
134877-42-2

2-deoxy-2,2-difluoro-D-erythro-pentofuranose-3,5-diphenylmethyl ester-1-methanesulfonate

2,4-O,N-bis(trimethylsilyl)cytosine
18037-10-0

2,4-O,N-bis(trimethylsilyl)cytosine

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate
134790-39-9

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate

Conditions
ConditionsYield
at 120℃; for 3h; Heating;85.5%
3,5-di-O-benzoyl-2-deoxy-2,2-difluoro-1-O-methanesulfonyl-D-erythro-pentofuranose
134877-42-2, 134877-43-3, 122111-11-9

3,5-di-O-benzoyl-2-deoxy-2,2-difluoro-1-O-methanesulfonyl-D-erythro-pentofuranose

2,4-O,N-bis(trimethylsilyl)cytosine
18037-10-0

2,4-O,N-bis(trimethylsilyl)cytosine

A

C23H19F2N3O6
134790-40-2

C23H19F2N3O6

B

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate
134790-39-9

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate

Conditions
ConditionsYield
With trimethylsilyl trifluoromethanesulfonate 1) 1,1,2-trichloroethane, r.t., 30 min, 2) 113 deg C, 18 h; Yield given. Multistep reaction. Yields of byproduct given;
(2R,3R)-2-((benzoyloxy)methyl)-4,4-difluoro-5-hydroxyoxolan-3-yl benzoate
1173824-58-2

(2R,3R)-2-((benzoyloxy)methyl)-4,4-difluoro-5-hydroxyoxolan-3-yl benzoate

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate
134790-39-9

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 100 percent / triethylamine / CH2Cl2 / 2 h / 23 °C
2: 1) Me3SiOTf / 1) 1,1,2-trichloroethane, r.t., 30 min, 2) 113 deg C, 18 h
View Scheme
Multi-step reaction with 2 steps
1: triethylamine / dichloromethane / 2 h / 5 - 20 °C
2: 3 h / 120 °C / Heating
View Scheme
2-deoxy-2,2-difluoro-D-erythro-pentofuranos-1-ulose-3,5-dibenzoate
122111-01-7

2-deoxy-2,2-difluoro-D-erythro-pentofuranos-1-ulose-3,5-dibenzoate

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate
134790-39-9

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: 100 percent / LiAl(OBu-t)3H / diethyl ether; tetrahydrofuran / 1 h / 10 - 30 °C
2: 100 percent / triethylamine / CH2Cl2 / 2 h / 23 °C
3: 1) Me3SiOTf / 1) 1,1,2-trichloroethane, r.t., 30 min, 2) 113 deg C, 18 h
View Scheme
Cytosine
71-30-7

Cytosine

2-deoxy-2,2-difluoro-D-erythro-pentofuranose-3,5-diphenylmethyl ester-1-methanesulfonate
134877-42-2

2-deoxy-2,2-difluoro-D-erythro-pentofuranose-3,5-diphenylmethyl ester-1-methanesulfonate

A

C23H19F2N3O6
134790-40-2

C23H19F2N3O6

B

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate
134790-39-9

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate

Conditions
ConditionsYield
With potassium sulfate; lithium chloride at 120 - 125℃; for 4h; Overall yield = 85.7 %; Overall yield = 405.2 g;A n/a
B n/a
3,5-di-O-benzoyl-2-deoxy-2,2-difluoro-1-O-methanesulfonyl-D-erythro-pentofuranose
134877-42-2, 134877-43-3, 122111-11-9

3,5-di-O-benzoyl-2-deoxy-2,2-difluoro-1-O-methanesulfonyl-D-erythro-pentofuranose

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate
134790-39-9

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: ethanol / 50 - 60 °C
2: 3 h / 120 °C / Heating
View Scheme
(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate
134790-39-9

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate

C23H20F2N2O7

C23H20F2N2O7

Conditions
ConditionsYield
With palladium 10% on activated carbon; hydrogen; acetic acid In water; ethyl acetate at 50 - 60℃; under 3750.38 Torr; for 18h;95.6%
Stage #1: (2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate With hydrogenchloride In water; ethyl acetate for 0.0833333h;
Stage #2: With formic acid; 5%-palladium/activated carbon In water; ethyl acetate at 68 - 70℃; for 24h; Inert atmosphere;
(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate
134790-39-9

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate

gemcitabine
95058-81-4

gemcitabine

Conditions
ConditionsYield
With ammonium hydroxide In methanol at 20℃; for 3h;82.7%
With sodium t-butanolate In methanol at 20℃; for 2h;
(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate
134790-39-9

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate

Benzoic acid (2R,3R,5R)-5-(4-amino-2-oxo-2H-pyrimidin-1-yl)-4,4-difluoro-3-hydroxy-tetrahydro-furan-2-ylmethyl ester

Benzoic acid (2R,3R,5R)-5-(4-amino-2-oxo-2H-pyrimidin-1-yl)-4,4-difluoro-3-hydroxy-tetrahydro-furan-2-ylmethyl ester

Conditions
ConditionsYield
With ammonia In methanol
(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate
134790-39-9

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate

C34H55F2N3O8

C34H55F2N3O8

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: dmap; triethylamine / 1,4-dioxane / 5 h / 40 °C
2: sodium hydroxide / methanol / 4 h / 20 °C
3: triethylamine / dichloromethane / 20 °C
View Scheme
Multi-step reaction with 3 steps
1: N,N-lutidine / 1,4-dioxane / 5 h / 40 °C
2: sodium hydroxide; sodium methylate / 4 h / 20 °C
3: triethylamine / dichloromethane / 20 °C
View Scheme
(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate
134790-39-9

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate

2',2'-difluoro-2'-deoxycytidine 3',5'-di-n-decanoate

2',2'-difluoro-2'-deoxycytidine 3',5'-di-n-decanoate

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: dmap; triethylamine / 1,4-dioxane / 5 h / 40 °C
2: sodium hydroxide / methanol / 4 h / 20 °C
3: triethylamine / dichloromethane / 20 °C
4: trifluoroacetic acid / dichloromethane / 4 h / 20 °C
View Scheme
Multi-step reaction with 4 steps
1: N,N-lutidine / 1,4-dioxane / 5 h / 40 °C
2: sodium hydroxide; sodium methylate / 4 h / 20 °C
3: triethylamine / dichloromethane / 20 °C
4: trifluoroacetic acid / dichloromethane / 4 h / 20 °C
View Scheme
(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate
134790-39-9

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate

C30H37F2N3O6Si

C30H37F2N3O6Si

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: dmap; triethylamine / 1,4-dioxane / 5 h / 40 °C
2: sodium hydroxide / methanol / 4 h / 20 °C
3: dmap / N,N-dimethyl-formamide / 20 °C
View Scheme
Multi-step reaction with 3 steps
1: N,N-lutidine / 1,4-dioxane / 5 h / 40 °C
2: sodium hydroxide; sodium methylate / 4 h / 20 °C
3: N,N-lutidine / N,N-dimethyl-formamide / 20 °C
View Scheme
(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate
134790-39-9

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate

tert-butyl [1-((2R,4R,5R)-3,3-difluoro-4-hydroxy-5-hydroxymethyl-tetrahydrofuran-2-yl)-2-oxo-1,2-dihydro-pyrimidin-4-yl]-carbamate

tert-butyl [1-((2R,4R,5R)-3,3-difluoro-4-hydroxy-5-hydroxymethyl-tetrahydrofuran-2-yl)-2-oxo-1,2-dihydro-pyrimidin-4-yl]-carbamate

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: dmap; triethylamine / 1,4-dioxane / 5 h / 40 °C
2: sodium hydroxide / methanol / 4 h / 20 °C
View Scheme
Multi-step reaction with 2 steps
1: N,N-lutidine / 1,4-dioxane / 5 h / 40 °C
2: sodium hydroxide; sodium methylate / 4 h / 20 °C
View Scheme
di-tert-butyl dicarbonate
24424-99-5

di-tert-butyl dicarbonate

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate
134790-39-9

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate

C28H27F2N3O8

C28H27F2N3O8

Conditions
ConditionsYield
With dmap; triethylamine In 1,4-dioxane at 40℃; for 5h;
With N,N-lutidine In 1,4-dioxane at 40℃; for 5h;
3,5-di-O-benzoyl-2-deoxy-2,2-difluoro-1-O-methanesulfonyl-D-erythro-pentofuranose
134877-42-2, 134877-43-3, 122111-11-9

3,5-di-O-benzoyl-2-deoxy-2,2-difluoro-1-O-methanesulfonyl-D-erythro-pentofuranose

2,4-O,N-bis(trimethylsilyl)cytosine
18037-10-0

2,4-O,N-bis(trimethylsilyl)cytosine

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate
134790-39-9

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate

Conditions
ConditionsYield
In toluene at 120℃; for 6h; Temperature;97.38%
4-Amino-1-trimethylsilanyl-1H-pyrimidin-2-one
73416-12-3

4-Amino-1-trimethylsilanyl-1H-pyrimidin-2-one

2-deoxy-2,2-difluoro-D-erythro-pentofuranose-3,5-diphenylmethyl ester-1-methanesulfonate
134877-42-2

2-deoxy-2,2-difluoro-D-erythro-pentofuranose-3,5-diphenylmethyl ester-1-methanesulfonate

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate
134790-39-9

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate

Conditions
ConditionsYield
With phosphomolybdic acid In pentan-1-ol at 70 - 137℃; for 5h; Reagent/catalyst; Solvent; Temperature; Reflux;95%
2-deoxy-2,2-difluoro-D-erythro-pentofuranose-3,5-diphenylmethyl ester-1-methanesulfonate
134877-42-2

2-deoxy-2,2-difluoro-D-erythro-pentofuranose-3,5-diphenylmethyl ester-1-methanesulfonate

2,4-O,N-bis(trimethylsilyl)cytosine
18037-10-0

2,4-O,N-bis(trimethylsilyl)cytosine

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate
134790-39-9

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate

Conditions
ConditionsYield
at 120℃; for 3h; Heating;85.5%
3,5-di-O-benzoyl-2-deoxy-2,2-difluoro-1-O-methanesulfonyl-D-erythro-pentofuranose
134877-42-2, 134877-43-3, 122111-11-9

3,5-di-O-benzoyl-2-deoxy-2,2-difluoro-1-O-methanesulfonyl-D-erythro-pentofuranose

2,4-O,N-bis(trimethylsilyl)cytosine
18037-10-0

2,4-O,N-bis(trimethylsilyl)cytosine

A

C23H19F2N3O6
134790-40-2

C23H19F2N3O6

B

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate
134790-39-9

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate

Conditions
ConditionsYield
With trimethylsilyl trifluoromethanesulfonate 1) 1,1,2-trichloroethane, r.t., 30 min, 2) 113 deg C, 18 h; Yield given. Multistep reaction. Yields of byproduct given;
(2R,3R)-2-((benzoyloxy)methyl)-4,4-difluoro-5-hydroxyoxolan-3-yl benzoate
1173824-58-2

(2R,3R)-2-((benzoyloxy)methyl)-4,4-difluoro-5-hydroxyoxolan-3-yl benzoate

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate
134790-39-9

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 100 percent / triethylamine / CH2Cl2 / 2 h / 23 °C
2: 1) Me3SiOTf / 1) 1,1,2-trichloroethane, r.t., 30 min, 2) 113 deg C, 18 h
View Scheme
Multi-step reaction with 2 steps
1: triethylamine / dichloromethane / 2 h / 5 - 20 °C
2: 3 h / 120 °C / Heating
View Scheme
2-deoxy-2,2-difluoro-D-erythro-pentonic acid γ-lactone 3,5-dibenzoate
122111-01-7

2-deoxy-2,2-difluoro-D-erythro-pentonic acid γ-lactone 3,5-dibenzoate

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate
134790-39-9

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: 100 percent / LiAl(OBu-t)3H / diethyl ether; tetrahydrofuran / 1 h / 10 - 30 °C
2: 100 percent / triethylamine / CH2Cl2 / 2 h / 23 °C
3: 1) Me3SiOTf / 1) 1,1,2-trichloroethane, r.t., 30 min, 2) 113 deg C, 18 h
View Scheme
Cytosine
71-30-7

Cytosine

2-deoxy-2,2-difluoro-D-erythro-pentofuranose-3,5-diphenylmethyl ester-1-methanesulfonate
134877-42-2

2-deoxy-2,2-difluoro-D-erythro-pentofuranose-3,5-diphenylmethyl ester-1-methanesulfonate

A

C23H19F2N3O6
134790-40-2

C23H19F2N3O6

B

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate
134790-39-9

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate

Conditions
ConditionsYield
With potassium sulfate; lithium chloride at 120 - 125℃; for 4h; Overall yield = 85.7 %; Overall yield = 405.2 g;A n/a
B n/a
3,5-di-O-benzoyl-2-deoxy-2,2-difluoro-1-O-methanesulfonyl-D-erythro-pentofuranose
134877-42-2, 134877-43-3, 122111-11-9

3,5-di-O-benzoyl-2-deoxy-2,2-difluoro-1-O-methanesulfonyl-D-erythro-pentofuranose

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate
134790-39-9

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: ethanol / 50 - 60 °C
2: 3 h / 120 °C / Heating
View Scheme
(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate
134790-39-9

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate

C23H20F2N2O7

C23H20F2N2O7

Conditions
ConditionsYield
With palladium 10% on activated carbon; hydrogen; acetic acid In water; ethyl acetate at 50 - 60℃; under 3750.38 Torr; for 18h;95.6%
Stage #1: (2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate With hydrogenchloride In water; ethyl acetate for 0.0833333h;
Stage #2: With formic acid; 5%-palladium/activated carbon In water; ethyl acetate at 68 - 70℃; for 24h; Inert atmosphere;
(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate
134790-39-9

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate

gemcitabine
95058-81-4

gemcitabine

Conditions
ConditionsYield
With ammonium hydroxide In methanol at 20℃; for 3h;82.7%
With sodium t-butanolate In methanol at 20℃; for 2h;
(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate
134790-39-9

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate

Benzoic acid (2R,3R,5R)-5-(4-amino-2-oxo-2H-pyrimidin-1-yl)-4,4-difluoro-3-hydroxy-tetrahydro-furan-2-ylmethyl ester

Benzoic acid (2R,3R,5R)-5-(4-amino-2-oxo-2H-pyrimidin-1-yl)-4,4-difluoro-3-hydroxy-tetrahydro-furan-2-ylmethyl ester

Conditions
ConditionsYield
With ammonia In methanol
(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate
134790-39-9

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate

C23H22F2N2O7

C23H22F2N2O7

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: hydrogenchloride / ethyl acetate; water / 0.08 h
1.2: 24 h / 68 - 70 °C / Inert atmosphere
2.1: cerium(III) chloride heptahydrate / dichloromethane; ethanol / 0.08 h
2.2: 2 h / 0 - 6 °C
View Scheme
Multi-step reaction with 2 steps
1: acetic acid; palladium 10% on activated carbon; hydrogen / ethyl acetate; water / 18 h / 50 - 60 °C / 3750.38 Torr
2: cerium(III) chloride heptahydrate; sodium tetrahydroborate / water; dichloromethane; ethanol / 2 h / 6 °C
View Scheme
(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate
134790-39-9

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate

2’-deoxy-2’,2’-difluorotetrahydrouridine
1141397-48-9

2’-deoxy-2’,2’-difluorotetrahydrouridine

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: hydrogenchloride / ethyl acetate; water / 0.08 h
1.2: 24 h / 68 - 70 °C / Inert atmosphere
2.1: cerium(III) chloride heptahydrate / dichloromethane; ethanol / 0.08 h
2.2: 2 h / 0 - 6 °C
3.1: ammonia / methanol / 27 h / 25 °C
View Scheme
Multi-step reaction with 3 steps
1: acetic acid; palladium 10% on activated carbon; hydrogen / ethyl acetate; water / 18 h / 50 - 60 °C / 3750.38 Torr
2: cerium(III) chloride heptahydrate; sodium tetrahydroborate / water; dichloromethane; ethanol / 2 h / 6 °C
3: 1,8-diazabicyclo[5.4.0]undec-7-ene / methanol / 3 h / 40 °C
View Scheme
(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate
134790-39-9

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate

(4R)-2’-deoxy-2’,2’-difluoro-3,4,5,6-tetrahydrouridine
1141397-80-9

(4R)-2’-deoxy-2’,2’-difluoro-3,4,5,6-tetrahydrouridine

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1.1: hydrogenchloride / ethyl acetate; water / 0.08 h
1.2: 24 h / 68 - 70 °C / Inert atmosphere
2.1: cerium(III) chloride heptahydrate / dichloromethane; ethanol / 0.08 h
2.2: 2 h / 0 - 6 °C
3.1: ammonia / methanol / 27 h / 25 °C
4.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / water; acetonitrile / 74 h / 25 °C / Large scale
4.2: 16 h / 0 - 40 °C / Large scale
View Scheme
Multi-step reaction with 4 steps
1: acetic acid; palladium 10% on activated carbon; hydrogen / ethyl acetate; water / 18 h / 50 - 60 °C / 3750.38 Torr
2: cerium(III) chloride heptahydrate; sodium tetrahydroborate / water; dichloromethane; ethanol / 2 h / 6 °C
3: 1,8-diazabicyclo[5.4.0]undec-7-ene / methanol / 3 h / 40 °C
4: 1,8-diazabicyclo[5.4.0]undec-7-ene / water; acetonitrile / 48 h / 20 - 30 °C
View Scheme
(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate
134790-39-9

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate

C9H9F2N3O6P(1-)*Na(1+)

C9H9F2N3O6P(1-)*Na(1+)

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: ammonium hydroxide / methanol / 3 h / 20 °C
2.1: pyridine; trichlorophosphate / 0 - 20 °C
2.2: 0.5 h / pH 3 - 4
3.1: sodium hydrogencarbonate / ethanol; water / 3 h
View Scheme
(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate
134790-39-9

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate

1-[(4aR,6R,7aR)-7,7-difluoro-2-hydroxy-2-oxo-4,4a,6,7a-tetrahydrofuro[3,2-d][1,3,2]dioxaphosphinin-6-yl]-4-amino-pyrimidin-2-one

1-[(4aR,6R,7aR)-7,7-difluoro-2-hydroxy-2-oxo-4,4a,6,7a-tetrahydrofuro[3,2-d][1,3,2]dioxaphosphinin-6-yl]-4-amino-pyrimidin-2-one

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: ammonium hydroxide / methanol / 3 h / 20 °C
2.1: pyridine; trichlorophosphate / 0 - 20 °C
2.2: 0.5 h / pH 3 - 4
View Scheme
(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate
134790-39-9

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate

C34H55F2N3O8

C34H55F2N3O8

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: dmap; triethylamine / 1,4-dioxane / 5 h / 40 °C
2: sodium hydroxide / methanol / 4 h / 20 °C
3: triethylamine / dichloromethane / 20 °C
View Scheme
Multi-step reaction with 3 steps
1: N,N-lutidine / 1,4-dioxane / 5 h / 40 °C
2: sodium hydroxide; sodium methylate / 4 h / 20 °C
3: triethylamine / dichloromethane / 20 °C
View Scheme
(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate
134790-39-9

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate

2',2'-difluoro-2'-deoxycytidine 3',5'-di-n-decanoate

2',2'-difluoro-2'-deoxycytidine 3',5'-di-n-decanoate

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: dmap; triethylamine / 1,4-dioxane / 5 h / 40 °C
2: sodium hydroxide / methanol / 4 h / 20 °C
3: triethylamine / dichloromethane / 20 °C
4: trifluoroacetic acid / dichloromethane / 4 h / 20 °C
View Scheme
Multi-step reaction with 4 steps
1: N,N-lutidine / 1,4-dioxane / 5 h / 40 °C
2: sodium hydroxide; sodium methylate / 4 h / 20 °C
3: triethylamine / dichloromethane / 20 °C
4: trifluoroacetic acid / dichloromethane / 4 h / 20 °C
View Scheme
(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate
134790-39-9

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate

C30H37F2N3O6Si

C30H37F2N3O6Si

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: dmap; triethylamine / 1,4-dioxane / 5 h / 40 °C
2: sodium hydroxide / methanol / 4 h / 20 °C
3: dmap / N,N-dimethyl-formamide / 20 °C
View Scheme
Multi-step reaction with 3 steps
1: N,N-lutidine / 1,4-dioxane / 5 h / 40 °C
2: sodium hydroxide; sodium methylate / 4 h / 20 °C
3: N,N-lutidine / N,N-dimethyl-formamide / 20 °C
View Scheme
(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate
134790-39-9

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate

tert-butyl [1-((2R,4R,5R)-3,3-difluoro-4-hydroxy-5-hydroxymethyl-tetrahydrofuran-2-yl)-2-oxo-1,2-dihydro-pyrimidin-4-yl]-carbamate

tert-butyl [1-((2R,4R,5R)-3,3-difluoro-4-hydroxy-5-hydroxymethyl-tetrahydrofuran-2-yl)-2-oxo-1,2-dihydro-pyrimidin-4-yl]-carbamate

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: dmap; triethylamine / 1,4-dioxane / 5 h / 40 °C
2: sodium hydroxide / methanol / 4 h / 20 °C
View Scheme
Multi-step reaction with 2 steps
1: N,N-lutidine / 1,4-dioxane / 5 h / 40 °C
2: sodium hydroxide; sodium methylate / 4 h / 20 °C
View Scheme
di-tert-butyl dicarbonate
24424-99-5

di-tert-butyl dicarbonate

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate
134790-39-9

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate

C28H27F2N3O8

C28H27F2N3O8

Conditions
ConditionsYield
With dmap; triethylamine In 1,4-dioxane at 40℃; for 5h;
With N,N-lutidine In 1,4-dioxane at 40℃; for 5h;
n-decyl chloroformate
55488-51-2

n-decyl chloroformate

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate
134790-39-9

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate

C34H39F2N3O8

C34H39F2N3O8

Conditions
ConditionsYield
With triethylamine In dichloromethane at 20℃; for 1.5h;
Reaxys ID: 37235391

Reaxys ID: 37235391

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate
134790-39-9

(2'-deoxy-2',2'-difluorocytidine)-3',5'-dibenzoate

Reaxys ID: 37235389

Reaxys ID: 37235389

2',2'-Difluoro-2'-deoxycytidine-3',5'-dibenzoate Chemical Properties

Following is the structure of 2',2'-Difluoro-2'-deoxycytidine-3',5'-dibenzoate (CAS NO.134790-39-9):
                     
Empirical Formula: C23H19F2N3O6
Molecular Weight: 471.4103 g/mol
Molar Refractivity: 114.273 cm3
Molar Volume: 323.151 cm3
Density: 1.459 g/cm3
Flash Point: 321.739 °C
Index of Refraction: 1.625
Surface Tension: 53.506 dyne/cm
Enthalpy of Vaporization: 90.392 kJ/mol
Boiling Point of 2',2'-Difluoro-2'-deoxycytidine-3',5'-dibenzoate (CAS NO.134790-39-9): 608.383 °C at 760 mmHg
Appearance of 2',2'-Difluoro-2'-deoxycytidine-3',5'-dibenzoate (CAS NO.134790-39-9): Tan Solid
SMILES: O=C1/N=C(/N)\C=C/N1[C@@H]3O[C@@H]([C@@H](OC(=O)c2ccccc2)C3(F)F)COC(=O)c4ccccc4
InChI: InChI=1/C23H19F2N3O6/c24-23(25)18(34-20(30)15-9-5-2-6-10-15)16(13-32-19(29)14-7-3-1-4-8-14)33-21(23)28-12-11-17(26)27-22(28)31/h1-12,16,18,21H,13H2,(H2,26,27,31)/t16-,18-,21-/m1/s1
InChIKey: ZPUUYUUQQGBHBU-HGHGUNKEBC

2',2'-Difluoro-2'-deoxycytidine-3',5'-dibenzoate Uses

 2',2'-Difluoro-2'-deoxycytidine-3',5'-dibenzoate (CAS NO.134790-39-9) can be used as a (-anomer) intermediate of Gemcitabine ; antitumor compound.

2',2'-Difluoro-2'-deoxycytidine-3',5'-dibenzoate Specification

 2',2'-Difluoro-2'-deoxycytidine-3',5'-dibenzoate , its cas register number is 134790-39-9. It also can be called 3',5'-Di-O-benzoyl-2'-deoxy-2',2'-difluorocytidine ; and Cytidine, 2'-deoxy-2',2'-difluoro-, 3',5'-dibenzoate .

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