反应详情

The title compound was prepared by reacting 48 (140 mg, 0.526 mmol) with hydroxylamine hydrochloride (110 mg, 1.58 mmol) according to method F to yield 148 mg (100%) of off white solid: mp 208-210° C.; 1H NMR (DMSO-d6): δ 6.84-6.87 (2H, m), 7.26-7.29 (2H, m), 7.36 (1H, d, J=7.94 Hz). 7.80 (1H, d, J=8.20 Hz), 8.41 (1H, s), 9.72 (1H, s), 11.83 (1H, s); MS (ESI) m/z 280/282/284 (M−H)−, 282/284/286 (M+H)+.

1. customto yield 148 mg (100%) of off white solid