Triethylamine → rac-(2R,3R,4R,5S)-3-(3-chloro-phenyl)-4-(4-chloro-phenyl)-4-cyano-5-cyclohexyl-pyrrolidine-2-carboxylic acid tert-butyl ester

HRID 1806759Notes

Reaction equation

HRID 1806759 reaction equation
[C:1]([O:5][C:6](=[O:16])[CH2:7]/[N:8]=[CH:9]/[CH:10]1[CH2:15][CH2:14][CH2:13][CH2:12][CH2:11]1)([CH3:4])([CH3:3])[CH3:2].[Cl:17][C:18]1[CH:19]=[C:20](/[CH:24]=[C:25](/[C:28]2[CH:33]=[CH:32][C:31]([Cl:34])=[CH:30][CH:29]=2)\[C:26]#[N:27])[CH:21]=[CH:22][CH:23]=1.C(N(CC)CC)C>ClCCl>[C:1]([O:5][C:6]([CH:7]1[CH:24]([C:20]2[CH:21]=[CH:22][CH:23]=[C:18]([Cl:17])[CH:19]=2)[C:25]([C:28]2[CH:29]=[CH:30][C:31]([Cl:34])=[CH:32][CH:33]=2)([C:26]#[N:27])[CH:9]([CH:10]2[CH2:11][CH2:12][CH2:13][CH2:14][CH2:15]2)[NH:8]1)=[O:16])([CH3:4])([CH3:2])[CH3:3]

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 912043m-Chlorobenzylidene-p-chlorophenylacetonitrileHCID 178451233HCID 178451233, compound

Product 1

HCID 67297059rac-(2R,3R,4R,5S)-3-(3-chloro-phenyl)-4-(4-chloro-phenyl)-4-cyano-5-cyclohexyl-pyrrolidine-2-carboxylic acid tert-butyl esterYield 38%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

In a manner similar to the method described in Example 1c, {[1-cyclohexyl-meth-(E)-ylidene]-amino}-acetic acid tert-butyl ester prepared in Example 50a (1.2 g, 5.3 mmol) was reacted with (Z)-3-(3-chloro-phenyl)-2-(4-chloro-phenyl)-acrylonitrile (1 g, 3.7 mmol) prepared in Example 1b, AgF (1.5 g, 12 mmol), and triethylamine (2 g, 20 mmol) in dichloromethane (100 mL) at room temperature for 20 h to give rac-(2R,3R,4R,5S)-3-(3-chloro-phenyl)-4-(4-chloro-phenyl)-4-cyano-5-cyclohexyl-pyrrolidine-2-carboxylic acid tert-butyl ester as a white foam (0.69 g, 38%).

Sources & evidence

ORD record
ord-f6fe304d5a8148f096730cb7a58d605d
Source dataset
uspto-grants-2013_01
Patent number
US08354444B2

Reaction notes

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