tert-butyl 4-((2R,3S,4R,5S)-3-(3-chloro-2-fluorophenyl)-4-(4-chloro-2-fluorophenyl)-4-cyano-5-neopentylpyrrolidine-2-carboxamido)-2-fluorobenzoate → Rac 4-{[(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-carbonyl]-amino}-2-fluoro-benzoic acid

HRID 1807182Notes

Reaction equation

HRID 1807182 reaction equation
C([O:5][C:6](=[O:45])[C:7]1[CH:12]=[CH:11][C:10]([NH:13][C:14]([C@H:16]2[C@H:20]([C:21]3[CH:26]=[CH:25][CH:24]=[C:23]([Cl:27])[C:22]=3[F:28])[C@:19]([C:31]3[CH:36]=[CH:35][C:34]([Cl:37])=[CH:33][C:32]=3[F:38])([C:29]#[N:30])[C@H:18]([CH2:39][C:40]([CH3:43])([CH3:42])[CH3:41])[NH:17]2)=[O:15])=[CH:9][C:8]=1[F:44])(C)(C)C>C(O)(C(F)(F)F)=O.C(Cl)Cl>[Cl:27][C:23]1[C:22]([F:28])=[C:21]([C@@H:20]2[C@:19]([C:31]3[CH:36]=[CH:35][C:34]([Cl:37])=[CH:33][C:32]=3[F:38])([C:29]#[N:30])[C@H:18]([CH2:39][C:40]([CH3:43])([CH3:42])[CH3:41])[NH:17][C@H:16]2[C:14]([NH:13][C:10]2[CH:11]=[CH:12][C:7]([C:6]([OH:45])=[O:5])=[C:8]([F:44])[CH:9]=2)=[O:15])[CH:26]=[CH:25][CH:24]=1

Participants

3

Reactant 1

HCID 45137136tert-butyl 4-((2R,3S,4R,5S)-3-(3-chloro-2-fluorophenyl)-4-(4-chloro-2-fluorophenyl)-4-cyano-5-neopentylpyrrolidine-2-carboxamido)-2-fluorobenzoate

Product 1

HCID 53358687Rac 4-{[(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-carbonyl]-amino}-2-fluoro-benzoic acid

Reagents, catalysts & solvents 1

HCID 21863450Trifluoroacetic acid methylene chlorideSolvent

Procedure

rac 4-{[(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-carbonyl]-amino}-2-fluoro-benzoic acid tert-butyl ester (35 mg, 0.053 mmol) was treated with 50% TFA/methylene chloride (10 mL) overnight. Removal of solvent and treating the residue with acetonitrile and water gave a white solid after filtration and dying. 29 mg.

Workup

  1. customRemoval of solvent
  2. additiontreating the residue with acetonitrile and water
  3. customgave a white solid
  4. filtrationafter filtration

Sources & evidence

ORD record
ord-348ea38a38b04df399e941a29cdd169d
Source dataset
uspto-grants-2013_01
Patent number
US08354444B2

Reaction notes

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