Trifluoroacetic acid → rac-(2R,3S,4R,5S)-3-(3-chloro-2-fluoro-phenyl)-4-(4-chloro-2-fluoro-phenyl)-4-cyano-5-(2,2-dimethyl-propyl)-pyrrolidine-2-carboxylic acid trifluoroacetic acid

HRID 1806770Notes

Reaction equation

HRID 1806770 reaction equation
C([O:5][C:6]([CH:8]1[CH:12]([C:13]2[CH:18]=[CH:17][CH:16]=[C:15]([Cl:19])[C:14]=2[F:20])[C:11]([C:23]2[CH:28]=[CH:27][C:26]([Cl:29])=[CH:25][C:24]=2[F:30])([C:21]#[N:22])[CH:10]([CH2:31][C:32]([CH3:35])([CH3:34])[CH3:33])[NH:9]1)=[O:7])(C)(C)C.[F:36][C:37]([F:42])([F:41])[C:38]([OH:40])=[O:39]>ClCCl>[F:36][C:37]([F:42])([F:41])[C:38]([OH:40])=[O:39].[Cl:19][C:15]1[C:14]([F:20])=[C:13]([CH:12]2[C:11]([C:23]3[CH:28]=[CH:27][C:26]([Cl:29])=[CH:25][C:24]=3[F:30])([C:21]#[N:22])[CH:10]([CH2:31][C:32]([CH3:34])([CH3:35])[CH3:33])[NH:9][CH:8]2[C:6]([OH:7])=[O:5])[CH:18]=[CH:17][CH:16]=1

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 66666471rac-(2R,3S,4R,5S)-3-(3-Chloro-2-fluoro-phenyl)-4-(4-chloro-2-fluoro-phenyl)-4-cyano-5-(2,2-dimethyl-propyl)-pyrrolidine-2-carboxylic acid tert-butyl ester

Product 1

HCID 86640317rac-(2R,3S,4R,5S)-3-(3-chloro-2-fluoro-phenyl)-4-(4-chloro-2-fluoro-phenyl)-4-cyano-5-(2,2-dimethyl-propyl)-pyrrolidine-2-carboxylic acid trifluoroacetic acidYield 100%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

In a manner similar to the method described in Example 25a, rac-(2S,3S,4R,5S)-3-(3-chloro-2-fluoro-phenyl)-4-(4-chloro-2-fluoro-phenyl)-4-cyano-5-(2,2-dimethyl-propyl)-pyrrolidine-2-carboxylic acid tert-butyl ester prepared in Example 53a (0.4 g, 0.8 mmol) was reacted trifluoroacetic acid in dichloromethane at room temperature to give rac-(2S,3S,4R,5S)-3-(3-Chloro-2-fluoro-phenyl)-4-(4-chloro-2-fluoro-phenyl)-4-cyano-5-(2,2-dimethyl-propyl)-pyrrolidine-2-carboxylic acid trifluoroacetic acid as a white solid (0.5 g, 100%).

Sources & evidence

ORD record
ord-a4ee880743d24acb9b0835a596ddfc40
Source dataset
uspto-grants-2013_01
Patent number
US08354444B2

Reaction notes

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