反应详情

In a similar fashion using route 2 general procedure 4, 5-nitroquinoxaline 481 (660 mg, 3.76 mmol), SnCl2 (2.14 g, 11.3 mmol), 6N HCl (6 drops) and MeOH (15 ml) for 3 h at 70° C. gave the title compound (540 mg, 98%) which was used in the next step without further purification.

1. customfor 3 h
2. customat 70° C.