Oxalyl chloride → 6-Methoxy-1,2-dimethyl-1H-indol-3-carboxylic acid cyclopropylamide

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Reaction Steps

This material was prepared from 1,2-dimethyl-6-methoxy1H-indole-3-carboxylic acid 16c (500 mg, 2.3 mmole), oxalyl chloride (0.4 ml, 4.6 mmole) and cyclopropylamine (1.6 ml, 23 mmole) in a manner as previously described for example 16d to give 480 mg (82%) of a white solid. 1H NMR (DMSO-d.6 δ 7.57 (1H, d, J=3.8 Hz), 7.50 (1H, d, J=8.8 Hz), 6.99 (1H, d, J=2.3 Hz), 6.71 (1H, dd, J=2.3, 8.8 Hz), 3.78 (3H, s), 3.63 (3H, s), 2.83–2.80 (1H, m), 2.51 (3H, s), 0.68–0.62 (2H, m), 0.57–0.53 (2H, m).

Provenance & Evidence