Trifluoroacetic acid → (5R)-5-{2-(5-cyclopropyl-6-methoxypyridin-2-yl)-2-[4-(propan-2-yl)phenyl]ethyl}pyrrolidin-2-one

HRID 70628Notes

Reaction equation

HRID 70628 reaction equation
FC(F)(F)C(O)=O.[CH:8]1([C:11]2[CH:12]=[CH:13][C:14]([CH:19]([C:34]3[CH:39]=[CH:38][C:37]([CH:40]([CH3:42])[CH3:41])=[CH:36][CH:35]=3)[CH2:20][C@H:21]3[CH2:25][CH2:24][C:23](=[O:26])[N:22]3C(OC(C)(C)C)=O)=[N:15][C:16]=2[O:17][CH3:18])[CH2:10][CH2:9]1.C(=O)(O)[O-].[Na+]>C(Cl)Cl>[CH:8]1([C:11]2[CH:12]=[CH:13][C:14]([CH:19]([C:34]3[CH:39]=[CH:38][C:37]([CH:40]([CH3:42])[CH3:41])=[CH:36][CH:35]=3)[CH2:20][C@@H:21]3[NH:22][C:23](=[O:26])[CH2:24][CH2:25]3)=[N:15][C:16]=2[O:17][CH3:18])[CH2:10][CH2:9]1

Participants

5

Reactant 3

HCID 6422Trifluoroacetic acidHCID 516892Sodium BicarbonateHCID 67401184tert-butyl (2R)-2-{2-(5-cyclopropyl-6-methoxypyridin-2-yl)-2-[4-(propan-2-yl)phenyl]ethyl}-5-oxopyrrolidine-1-carboxylate

Product 1

HCID 67396303(5R)-5-{2-(5-cyclopropyl-6-methoxypyridin-2-yl)-2-[4-(propan-2-yl)phenyl]ethyl}pyrrolidin-2-oneYield 105.8%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

Trifluoroacetic acid (1 mL) was added to a solution of tert-butyl (2R)-2-{2-(5-cyclopropyl-6-methoxypyridin-2-yl)-2-[4-(propan-2-yl)phenyl]ethyl}-5-oxopyrrolidine-1-carboxylate (211 mg) in methylene chloride (2 mL) under ice-cooling, and the mixture was stirred under ice-cooling for 75 minutes. Saturated aqueous sodium bicarbonate was added to the reaction solution, followed by extraction with chloroform. The organic layer was dried over anhydrous magnesium sulfate and filtered, after which the solvent was evaporated under reduced pressure to give (5R)-5-{2-(5-cyclopropyl-6-methoxypyridin-2-yl)-2-[4-(propan-2-yl)phenyl]ethyl}pyrrolidin-2-one (176.5 mg, quant.).

Workup

  1. temperaturecooling
  2. temperaturecooling for 75 minutes
  3. extractionfollowed by extraction with chloroform
  4. dry with materialThe organic layer was dried over anhydrous magnesium sulfate
  5. filtrationfiltered
  6. customafter which the solvent was evaporated under reduced pressure

Sources & evidence

ORD record
ord-02a9456d80f2415a92909581fb229e55
Source dataset
uspto-grants-2014_09
Patent number
US08822503B2

Reaction notes

Loading…