Diisopropylethylamine → [2-(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}-phenyl)-ethyl]-carbamic acid

HRID 1807276Notes

Reaction equation

HRID 1807276 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](O)=[O:29])[CH:5]=[CH:6][CH:7]=1.CCN(C(C)C)C(C)C.C([O:45][C:46](=[O:57])[NH:47][CH2:48][CH2:49][C:50]1[CH:55]=[CH:54][C:53]([NH2:56])=[CH:52][CH:51]=1)(C)(C)C.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F>ClCCl>[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]([CH3:27])([CH3:26])[CH3:25])[NH:10][C@@H:9]([C:28]([NH:56][C:53]3[CH:52]=[CH:51][C:50]([CH2:49][CH2:48][NH:47][C:46](=[O:57])[OH:45])=[CH:55][CH:54]=3)=[O:29])[C@@H:8]2[C:4]2[CH:5]=[CH:6][CH:7]=[C:2]([Cl:1])[C:3]=2[F:31])=[C:16]([F:22])[CH:17]=1

Participants

6

Reactant 4

HCID 81531Diisopropylethylamine2×HCID 382207Tert-butyl 4-aminophenethylcarbamateHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)2×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 86642692[2-(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}-phenyl)-ethyl]-carbamic acid

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

To a solution 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 (51.1 mg, 0.11 mmol) in dichloromethane (3 mL) were added DIPEA (71.2 mg, 0.55 mmol), [2-(4-AMINO-PHENYL)-ETHYL]-CARBAMIC ACID TERT-BUTYL ESTER (52.3 mg., 0.22 mmol, Chem-Impex) and HATU (77.8 mg, 0.20 mmol) (The acid, DIPEA, and HATU were added in thirds at 20 min intervals). After 90 mins, the reaction was diluted with dichloromethane, washed with water and saturated sodium chloride and purified by silica gel chromatography with ethyl acetate and n-hexanes to give chiral [2-(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}-phenyl)-ethyl]-carbamic acid tent-butyl ester (40.6 mg., 54.2%) as a white lyophilized solid. HRMS (ES+) m/z Calcd C36H40Cl2F2N4O3+H [(M+H): 685.2519. Found: 685.2517.

Workup

  1. additionwere added in thirds at 20 min intervals)
  2. washwashed with water and saturated sodium chloride
  3. custompurified by silica gel chromatography with ethyl acetate and n-hexanes

Sources & evidence

ORD record
ord-58d1b167119e40dd9338088201fd176f
Source dataset
uspto-grants-2013_01
Patent number
US08354444B2

Reaction notes

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