Diisopropylethylamine → HCID 53358115, compound

HRID 1807302Notes

Reaction equation

HRID 1807302 reaction equation
[Cl:1][C:2]1[C:3]([F:31])=[C:4]([CH: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])[CH:11]([CH2:23][C:24]([CH3:27])([CH3:26])[CH3:25])[NH:10][CH:9]2[C:28]([OH:30])=O)[CH:5]=[CH:6][CH:7]=1.C(N(CC)C(C)C)(C)C.[NH2:41][C:42]1([CH3:55])[CH2:47][CH2:46][N:45]([C:48]([O:50][C:51]([CH3:54])([CH3:53])[CH3:52])=[O:49])[CH2:44][CH2:43]1>ClCCl>[C:51]([O:50][C:48]([N:45]1[CH2:46][CH2:47][C:42]([NH:41][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]([CH3:26])([CH3:25])[CH3:27])[NH:10]2)=[O:30])([CH3:55])[CH2:43][CH2:44]1)=[O:49])([CH3:54])([CH3:52])[CH3:53]

Participants

5

Reactant 3

HCID 81531DiisopropylethylamineHCID 11310432tert-Butyl 4-amino-4-methylpiperidine-1-carboxylateHCID 666882513-(3-Chloro-2-fluoro-phenyl)-4-(4-chloro-2-fluoro-phenyl)-4-cyano-5-(2,2-dimethyl-propyl)-pyrrolidine-2-carboxylic acid

Product 1

HCID 53358115HCID 53358115, compound

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

To a stirred solution of racemic-(2R,3S,4R,5S)-3-(3-chloro-2-fluorophenyl)-4-(4-chloro-2-fluorophenyl)-4-cyano-5-neopentylpyrrolidine-2-carboxylic acid (48.2 mg, 0.103 mmol) in dichloromethane (8 ml) were added N,N-DIISOPROPYLETHYLAMINE (72.7 mg, 98.3 μl, 563 μmol, Eq: 6) and N,N,N′,N′-tetramethyl-O-(7-aza-benzotriazol-1-yl)uranium hexafluorophosphate (HATU) (64.2 mg, 0.169 mmol) followed by tert-butyl 4-amino-4-methylpiperidine-1-carboxylate (20.1 mg, 0.0938 mmol, Astatech). The reaction mixture was stirred from 2:00 PM for 2 hrs. The reaction mixture was diluted with CH2Cl2 (80 mL), washed with sat Na2CO3 (15 mL), water (2×15 mL) and evaporated. The crude material was purified by flash chromatography (silica gel, 4 g, 5% to 70% EtOAc in hexanes) 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}-4-methyl-piperidine-1-carboxylic acid tert-butyl ester as a white solid. MS (ES+) m/z Calcd: [(M+H)+]: 663. found: 663.

Workup

  1. washwashed with sat Na2CO3 (15 mL), water (2×15 mL)
  2. customevaporated
  3. customThe crude material was purified by flash chromatography (silica gel, 4 g, 5% to 70% EtOAc in hexanes)

Sources & evidence

ORD record
ord-bd1e3acd74d84bf795d68ce28fb8f0e4
Source dataset
uspto-grants-2013_01
Patent number
US08354444B2

Reaction notes

Loading…