Diisopropylethylamine → 4-Chloro-1-{[5-(1,3-dimethyl-1H-pyrazol-5-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), 1,3-dimethyl-1H-pyrazole-5-carboxylic acid (0.014 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 7.90 (s, 1 H), 7.52 (d, J=8.6 Hz, 1 H), 7.46 (d, J=8.5 Hz, 1 H), 6.71 (s, 1 H), 5.44 (s, 2 H), 4.12 (s, 3 H), 2.97 (t, 2 H), 2.30 (s, 3 H), 1.80-1.72 (m, 2 H), 1.04 (t, 3 H); MS (ES) m/z 395 (M+1).

Provenance & Evidence