反应详情

A solution of 1-acetyl-5-bromoindoline-6-sulfonyl chloride (2.30 g, 6.79 mmol) in NH3 (54.3 mL, 27.2 mmol, 0.5M solution in dioxane) was stirred at room temperature overnight. The reaction mixture was then concentrated in vacuo, and the residue was triturated with CH2Cl2 to give the title compound (1.40 g, 65%) as a brown solid. 1H NMR (DMSO-d6) δ 8.73 (s, 1H), 7.63 (s, 1H), 7.15 (s, 2H), 4.15 (t, J=8.5 Hz, 2H), 3.19 (t, J=8.6 Hz, 2H), 2.17 (s, 3H); MS(ESI+) m/z 321.1 (M+H)+.

1. concentrationThe reaction mixture was then concentrated in vacuo
2. customthe residue was triturated with CH2Cl2