反应详情

To 11A (51 mg, 0.16 mmol) was added HBr (33% in HOAc) 2 mL and the mixture was stirred at rt for 2 h. Ether (10 mL×2) was added and the resulting precipitate was collected and dried under vacuum to give the title compound as hydrogen bromide salts (11). LC-MS (ESR): m/z=184 (M+H)+

1. customthe resulting precipitate was collected
2. customdried under vacuum