Hydrochloric Acid → rac-4-{2-[(2S,3R,4S)-4-(3-chloro-2-fluoro-phenyl)-3-(4-chloro-2-fluoro-phenyl)-3-cyano-2-(2,2-dimethyl-propyl)-pyrrolidin-1-yl]-acetylamino}-benzoic acid

HRID 909054Notes

Reaction equation

HRID 909054 reaction equation
C[O:2][C:3](=[O:42])[C:4]1[CH:9]=[CH:8][C:7]([NH:10][C:11](=[O:41])[CH2:12][N:13]2[CH2:17][C@H:16]([C:18]3[CH:23]=[CH:22][CH:21]=[C:20]([Cl:24])[C:19]=3[F:25])[C@:15]([C:28]3[CH:33]=[CH:32][C:31]([Cl:34])=[CH:30][C:29]=3[F:35])([C:26]#[N:27])[C@@H:14]2[CH2:36][C:37]([CH3:40])([CH3:39])[CH3:38])=[CH:6][CH:5]=1.[OH-].[Na+].CO.Cl>O1CCCC1>[Cl:24][C:20]1[C:19]([F:25])=[C:18]([C@H:16]2[CH2:17][N:13]([CH2:12][C:11]([NH:10][C:7]3[CH:6]=[CH:5][C:4]([C:3]([OH:42])=[O:2])=[CH:9][CH:8]=3)=[O:41])[C@@H:14]([CH2:36][C:37]([CH3:40])([CH3:39])[CH3:38])[C@@:15]2([C:28]2[CH:33]=[CH:32][C:31]([Cl:34])=[CH:30][C:29]=2[F:35])[C:26]#[N:27])[CH:23]=[CH:22][CH:21]=1

Participants

6

Reactant 4

HCID 313Hydrochloric AcidHCID 887MethanolHCID 14798Sodium HydroxideHCID 51355304rac-4-{2-[(2S,3R,4S)-4-(3-chloro-2-fluoro-phenyl)-3-(4-chloro-2-fluoro-phenyl)-3-cyano-2-(2,2-dimethyl-propyl)-pyrrolidin-1-yl]-acetylamino}-benzoic acid methyl ester

Product 1

HCID 51355305rac-4-{2-[(2S,3R,4S)-4-(3-chloro-2-fluoro-phenyl)-3-(4-chloro-2-fluoro-phenyl)-3-cyano-2-(2,2-dimethyl-propyl)-pyrrolidin-1-yl]-acetylamino}-benzoic acidYield 96.4%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

To a solution of rac-4-{2-[(2S,3R,4S)-4-(3-chloro-2-fluoro-phenyl)-3-(4-chloro-2-fluoro-phenyl)-3-cyano-2-(2,2-dimethyl-propyl)-pyrrolidin-1-yl]-acetylamino}-benzoic acid methyl ester (0.35 g, 0.57 mmol) in tetrahydrofuran (30 mL) was added an aqueous solution (1 N) of NaOH (10 mL, 10 mmol) and methanol (10 mL). The reaction mixture was stirred at room temperature for 24 h, and the “pH” of the solution was adjusted to 5-6 by aqueous HCl solution. The mixture was extracted ethyl acetate twice. The combined organic extracts were washed with water, brine, dried over MgSO4, and concentrated to give rac-4-{2-[(2S,3R,4S)-4-(3-chloro-2-fluoro-phenyl)-3-(4-chloro-2-fluoro-phenyl)-3-cyano-2-(2,2-dimethyl-propyl)-pyrrolidin-1-yl]-acetylamino}-benzoic acid as a white solid (0.33 g, 96%). HRMS (ES+) m/z Calcd for C31H29Cl2F2N3O3+H [(M+H): 600.1267; Found: 600.1628.

Workup

  1. extractionThe mixture was extracted ethyl acetate twice
  2. washThe combined organic extracts were washed with water, brine
  3. dry with materialdried over MgSO4
  4. concentrationconcentrated

Sources & evidence

ORD record
ord-9d4c82063bd044698923fc8eca10acf5
Source dataset
uspto-grants-2011_09
Patent number
US08017607B2

Reaction notes

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