Lithium hydroxide, monohydrate → Rac 4-{[(2r,3s,4r,5s)-4-(4-chloro-2-fluoro-phenyl)-3-(3-chloro-2-fluoro-phenyl)-4-cyano-5-(2,2-dimethyl-propyl)-pyrrolidine-2-carbonyl]-amino}-2-ethoxy-benzoic acid

HRID 1807274Notes

Reaction equation

HRID 1807274 reaction equation
[Cl:1][C:2]1[C:3]([F:44])=[C:4]([C@@H:8]2[C@:12]([C:15]3[CH:20]=[CH:19][C:18]([Cl:21])=[CH:17][C:16]=3[F:22])([C:13]#[N:14])[C@H:11]([CH2:23][C:24]([CH3:27])([CH3:26])[CH3:25])[NH:10][C@H:9]2[C:28]([NH:30][C:31]2[CH:40]=[CH:39][C:34]([C:35]([O:37]C)=[O:36])=[C:33]([O:41][CH2:42][CH3:43])[CH:32]=2)=[O:29])[CH:5]=[CH:6][CH:7]=1.O.[OH-].[Li+]>C1COCC1.O>[Cl:21][C:18]1[CH:19]=[CH:20][C:15]([C@@:12]2([C:13]#[N:14])[C@H:11]([CH2:23][C:24]([CH3:25])([CH3:27])[CH3:26])[NH:10][C@@H:9]([C:28]([NH:30][C:31]3[CH:40]=[CH:39][C:34]([C:35]([OH:37])=[O:36])=[C:33]([O:41][CH2:42][CH3:43])[CH:32]=3)=[O:29])[C@@H:8]2[C:4]2[CH:5]=[CH:6][CH:7]=[C:2]([Cl:1])[C:3]=2[F:44])=[C:16]([F:22])[CH:17]=1

Participants

5

Reactant 2

HCID 168937Lithium hydroxide, monohydrateHCID 67368577racemic methyl 4-((2R,3S,4R,5S)-3-(3-chloro-2-fluorophenyl)-4-(4-chloro-2-fluorophenyl)-4-cyano-5-neopentylpyrrolidine-2-carboxamido)-2-ethoxybenzoate

Product 1

HCID 53357879Rac 4-{[(2r,3s,4r,5s)-4-(4-chloro-2-fluoro-phenyl)-3-(3-chloro-2-fluoro-phenyl)-4-cyano-5-(2,2-dimethyl-propyl)-pyrrolidine-2-carbonyl]-amino}-2-ethoxy-benzoic acid

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 8028TetrahydrofuranSolvent

Conditions

Temperature
70 °C

Procedure

In a manner similar to the method described in Example 380, a solution of the above methyl 4-((2R,3S,4R,5S)-3-(3-chloro-2-fluorophenyl)-4-(4-chloro-2-fluorophenyl)-4-cyano-5-neopentylpyrrolidine-2-carboxamido)-2-ethoxybenzoate (89.7 mg, ˜0.13 mmol) in THF (8 ml) was treated with lithium hydroxide hydrate (40.9 mg, 0.974 mmol) in water (4 mL) and heated at 70° C. for 3 hrs and then stirred at room temperature to give rac 4-{[(2R,3S,4R,5S)-4-(4-Chloro-2-fluoro-phenyl)-3-(3-chloro-2-fluoro-phenyl)-4-cyano-5-(2,2-dimethyl-propyl)-pyrrolidine-2-carbonyl]-amino}-2-ethoxy-benzoic acid as a white lyophilized solid (33.5 mg., 38%) after HPLC purification.

Sources & evidence

ORD record
ord-eb68b2815f3849048df2192ea6f8dd5d
Source dataset
uspto-grants-2013_01
Patent number
US08354444B2

Reaction notes

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