Diisopropylethylamine → 5-chloro-N-((1S)-2-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)-1-{[3-(trifluoromethyl)phenyl]methyl}ethyl)-4-(1-methyl-1H-pyrazol-5-yl)-2-thiophenecarboxamide

HRID 2392159Notes

Reaction equation

HRID 2392159 reaction equation
[Cl:1][C:2]1[S:6][C:5]([C:7]([OH:9])=O)=[CH:4][C:3]=1[C:10]1[N:14]([CH3:15])[N:13]=[CH:12][CH:11]=1.[NH2:16][C@@H:17]([CH2:30][C:31]1[CH:36]=[CH:35][CH:34]=[C:33]([C:37]([F:40])([F:39])[F:38])[CH:32]=1)[CH2:18][N:19]1[C:27](=[O:28])[C:26]2[C:21](=[CH:22][CH:23]=[CH:24][CH:25]=2)[C:20]1=[O:29].C1CN([P+](Br)(N2CCCC2)N2CCCC2)CC1.F[P-](F)(F)(F)(F)F.CCN(C(C)C)C(C)C>C(Cl)(Cl)Cl>[Cl:1][C:2]1[S:6][C:5]([C:7]([NH:16][C@@H:17]([CH2:30][C:31]2[CH:36]=[CH:35][CH:34]=[C:33]([C:37]([F:40])([F:38])[F:39])[CH:32]=2)[CH2:18][N:19]2[C:20](=[O:29])[C:21]3[C:26](=[CH:25][CH:24]=[CH:23][CH:22]=3)[C:27]2=[O:28])=[O:9])=[CH:4][C:3]=1[C:10]1[N:14]([CH3:15])[N:13]=[CH:12][CH:11]=1

Participants

6

Reactant 4

HCID 81531DiisopropylethylamineHCID 2733179PyBroPHCID 578263895-chloro-4-(1-methyl-1H-pyrazol-5-yl)thiophene-2-carboxylic acidHCID 670660602-{(2S)-2-amino-3-[3-(trifluoromethyl)phenyl]propyl}-1H-isoindole-1,3(2H)-dione

Product 1

HCID 578266135-chloro-N-((1S)-2-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)-1-{[3-(trifluoromethyl)phenyl]methyl}ethyl)-4-(1-methyl-1H-pyrazol-5-yl)-2-thiophenecarboxamideYield 71.1%

Reagents, catalysts & solvents 1

HCID 6212ChloroformSolvent

Procedure

To a 50 mL round-bottomed flask was added 5-chloro-4-(1-methyl-1H-pyrazol-5-yl)-2-thiophenecarboxylic acid (226 mg, 0.93 mmol) [prepared according to the procedure of Example 95], 2-{(2S)-2-amino-3-[3-(trifluoromethyl)phenyl]propyl}-1H-isoindole-1,3(2H)-dione (519 mg, 1.349 mmol) [prepared according to Preparation 6 except substituting N-{[(1,1-dimethylethyl)oxy]carbonyl}-4-fluoro-L-phenylalanine (4.95 g, 17.5 mmol) for N-{[(1,1-dimethylethyl)oxy]carbonyl}-2-(trifluoromethyl)-L-phenylalanine] and PyBrop (515 mg, 1.1 mmol) in chloroform (10 mL). DIEA (820 μL, 4.70 mmol) was added and the reaction stirred overnight at room temperature. The mixture was adsorbed onto silica and purified via column chromatography (25-70% EtOAc/Hex) affording the title compound (379 mg, 69%): LC-MS (ES) m/z=573 (M+H)+.

Workup

  1. customprepared
  2. custompurified via column chromatography (25-70% EtOAc/Hex)

Sources & evidence

ORD record
ord-81cd98082c4940eabc520eef2ec45dfe
Source dataset
uspto-grants-2012_09
Patent number
US08273782B2

Reaction notes

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