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

HRID 1806920Notes

Reaction equation

HRID 1806920 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]([C:35]([O:37][CH2:38][C:39]2[CH:44]=[CH:43][CH:42]=[CH:41][CH:40]=2)=[O:36])([CH3:34])[CH3:33])[NH:9]1)=[O:7])(C)(C)C.[F:45][C:46]([F:51])([F:50])[C:47]([OH:49])=[O:48]>ClCCl>[F:45][C:46]([F:51])([F:50])[C:47]([OH:49])=[O:48].[CH2:38]([O:37][C:35]([C:32]([CH3:34])([CH3:33])[CH2:31][CH:10]1[NH:9][CH:8]([C:6]([OH:7])=[O:5])[CH:12]([C:13]2[CH:18]=[CH:17][CH:16]=[C:15]([Cl:19])[C:14]=2[F:20])[C:11]1([C:23]1[CH:28]=[CH:27][C:26]([Cl:29])=[CH:25][C:24]=1[F:30])[C:21]#[N:22])=[O:36])[C:39]1[CH:44]=[CH:43][CH:42]=[CH:41][CH:40]=1

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 67297241rac-(2R,3S,4R,5S)-5-(2-benzyloxycarbonyl-2-methyl-propyl)-3-(3-chloro-2-fluoro-phenyl)-4-(4-chloro-2-fluoro-phenyl)-4-cyano-pyrrolidine-2-carboxylic acid tert-butyl ester

Product 1

HCID 86640381rac-(2R,3S,4R,5S)-5-(2-benzyloxycarbonyl-2-methyl-propyl)-3-(3-chloro-2-fluoro-phenyl)-4-(4-chloro-2-fluoro-phenyl)-4-cyano-pyrrolidine-2-carboxylic acid trifluoroacetic acidYield 86%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

In a manner similar to the method described in Example 25a, rac-(2R,3S,4R,5S)-5-(2-benzyloxycarbonyl-2-methyl-propyl)-3-(3-chloro-2-fluoro-phenyl)-4-(4-chloro-2-fluoro-phenyl)-4-cyano-pyrrolidine-2-carboxylic acid tert-butyl ester prepared in Example 103b (0.98 g, 1.6 mmol) was reacted with trifluoroacetic acid in dichloromethane at room temperature to give rac-(2R,3S,4R,5S)-5-(2-benzyloxycarbonyl-2-methyl-propyl)-3-(3-chloro-2-fluoro-phenyl)-4-(4-chloro-2-fluoro-phenyl)-4-cyano-pyrrolidine-2-carboxylic acid trifluoroacetic acid as a white gum (0.94 g, 86%).

Sources & evidence

ORD record
ord-7dc983d718d44898b0c508ea6bb1c143
Source dataset
uspto-grants-2013_01
Patent number
US08354444B2

Reaction notes

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