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

HRID 1806782Notes

Reaction equation

HRID 1806782 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:29]#[N:30])([C:21]2[CH:26]=[CH:25][C:24]([Cl:27])=[CH:23][C:22]=2[Cl:28])[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:29]#[N:30])([C:21]3[CH:26]=[CH:25][C:24]([Cl:27])=[CH:23][C:22]=3[Cl:28])[CH:10]([CH2:31][C:32]([CH3:35])([CH3:33])[CH3:34])[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 67297177rac-(2R,3S,4R,5S)-3-(3-chloro-2-fluoro-phenyl)-4-cyano-4-(2,4-dichloro-phenyl)-5-(2,2-dimethyl-propyl)-pyrrolidine-2-carboxylic acid tert-butyl ester

Product 1

HCID 86640321rac-(2R,3S,4R,5S)-3-(3-chloro-2-fluoro-phenyl)-4-cyano-4-(2,4-dichloro-phenyl)-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-(2R,3S,4R,5S)-3-(3-chloro-2-fluoro-phenyl)-4-cyano-4-(2,4-dichloro-phenyl)-5-(2,2-dimethyl-propyl)-pyrrolidine-2-carboxylic acid tert-butyl ester prepared in Example 56b (2.4 g, 7.4 mmol) was reacted with trifluoroacetic acid in dichloromethane at room temperature to give rac-(2R,3S,4R,5S)-3-(3-chloro-2-fluoro-phenyl)-4-cyano-4-(2,4-dichloro-phenyl)-5-(2,2-dimethyl-propyl)-pyrrolidine-2-carboxylic acid trifluoroacetic acid as a white solid (2.7 g, 100%).

Sources & evidence

ORD record
ord-fb8ec7f3ecb2486991a5ae136f54871d
Source dataset
uspto-grants-2013_01
Patent number
US08354444B2

Reaction notes

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