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

Participants

Reaction Steps

At room temperature, a mixture of 4-(1-methyl-1H-pyrazol-5-yl)-5-(trifluoromethyl)-2-thiophenecarboxylic acid (235 mg, 80% purity, 0.68 mmol), phosphoniumhexafluorophosphate (PyBrOP) (381 mg, 0.19 mmol), DIPEA (0.59 mL, 3.4 mmol) and 2-{(2S)-2-amino-3-[2-(trifluoromethyl)phenyl]propyl}-1H-isoindole-1,3(2H)-dione (261 mg, 0.75 mmol) in DCM (5 mL) was stirred for 2 h. The reaction solution was concentrated and purified via column chromatography (silica, 20-50% EtOAc/Hexane) affording the title compound (386 mg, 86%) as a white solid: LC-MS (ES) 607 (M+H)+.

Provenance & Evidence