Diisopropylethylamine → 2-Propyl-4-(trifluoromethyl)-1-{[5-(3,4,5-trifluorophenyl)-1,2,4-oxadiazol-3-yl]methyl}-1H-indole-5-carbonitrile

Participants

Reaction Conditions

Reaction Steps

To a solution of 2-[5-cyano-2-propyl-4-(trifluoromethyl)-1H-indol-1-yl]-N-hydroxyethanimidamide (Example 275A) (0.100 g, 0.308 mmol) in anhydrous acetonitrile (3.0 mL) under N2, was added 3,4,5-trifluorobenzoyl chloride (0.241 g, 1.23 mmol) and N,N-diisopropylethylamine (0.50 mL, 5.21 mmol). The mixture was then heated in a microwave at 150° C. for 30 min. Upon cooling, the mixture was poured onto a biotage prepak column and the mixture was purified by flash chromatography (0-25% EtOAc-hexanes gradient) to give 0.065 g (45% yield) of pure product: MS (ES) m/z 464 (M+).

Provenance & Evidence