Diisopropylethylamine → (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}-phenyl)-acetic acid methyl ester

HRID 1807240Notes

Reaction equation

HRID 1807240 reaction equation
[Cl:1][C:2]1[C:3]([F:31])=[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]([OH:30])=O)[CH:5]=[CH:6][CH:7]=1.[NH2:32][C:33]1[CH:38]=[CH:37][C:36]([CH2:39][C:40]([O:42][CH3:43])=[O:41])=[CH:35][CH:34]=1.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.CCN(C(C)C)C(C)C>C(Cl)Cl>[CH3:43][O:42][C:40](=[O:41])[CH2:39][C:36]1[CH:37]=[CH:38][C:33]([NH:32][C:28]([C@H:9]2[C@H:8]([C:4]3[CH:5]=[CH:6][CH:7]=[C:2]([Cl:1])[C:3]=3[F:31])[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])([CH3:25])[CH3:26])[NH:10]2)=[O:30])=[CH:34][CH:35]=1

Participants

6

Reactant 4

HCID 81531DiisopropylethylamineHCID 2761030Methyl 2-(4-aminophenyl)acetateHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 59249226(2R,3S,4R,5S)-3-(3-chloro-2-fluorophenyl)-4-(4-chloro-2-fluorophenyl)-4-cyano-5-neopentylpyrrolidine-2-carboxylic acid

Product 1

HCID 59249533(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}-phenyl)-acetic acid methyl esterYield 69.7%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

A mixture of chiral-(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-carboxylic acid (228 mg, 0.488 mmol), methyl 2-(4-aminophenyl)acetate (200 mg, 1.21 mmol), 2-(7-azabenzotriazol-1-yl)-n,n,n′,n′-tetramethyluronium hexafluorophosphate (HATU, 241 mg, 0.634 mmol) and iPr2NEt (0.4 mL, 2.29 mmol) in CH2Cl2 (10 mL) was stirred at rt overnight. The mixture was then diluted with CH2Cl2 and washed with water, brine. The organic phase was separated, then concentrated and purified by column chromatography (1-100% of EtOAc/heptane, 12 g Analogix column) to afford chiral (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}-phenyl)-acetic acid methyl ester (209 mg, 69.7%) as an white powder. LCMS (ES+) m/z Calcd for C32H31Cl2F2N3O3+H [M+H)+]: 613.17. found: 614.2.

Workup

  1. washwashed with water, brine
  2. customThe organic phase was separated
  3. concentrationconcentrated
  4. custompurified by column chromatography (1-100% of EtOAc/heptane, 12 g Analogix column)

Sources & evidence

ORD record
ord-d30fff7781954346ad94980aa4c036fd
Source dataset
uspto-grants-2013_01
Patent number
US08354444B2

Reaction notes

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