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

Participants

Reaction Steps

Synthesized as described in Example 32A and Example 33 using (1Z)-2-(4-chloro-5-cyano-2-propyl-1H-indol-1-yl)-N-hydroxyethanimidamide (0.030 g, 0.1 mmol) in anhydrous THF (5 mL) with propanephosphonic acid cyclic anhydride (T3P) (0.034 g, 0.12 mmol), 1-methyl-3-(trifluoromethyl)-1H-pyrazole-4-carboxylic acid (0.0194 g, 0.1 mmol) and DIEA (0.016 g, 0.12 mmol) and stirred at rt for 1 h and then heated at 120° C. for 2 h in the microwave: 1H NMR (400 MHz, CDCl3) δ 8.07 (s, 1H), 7.88 (d, J=1.0 Hz, 1H), 7.53 (d, J=8.5 Hz, 1H), 7.45 (d, J=8.4 Hz, 1H), 5.40 (s, 2H), 4.01 (s, 3H), 2.96 (t, 2H), 1.82-1.67 (m, 2H), 1.03 (t, 3H); MS (ES) m/z 449 (M+1).

Provenance & Evidence