反应详情

42.3 g (0.128 mol) of 1-benzyl-7-benzyloxy-2-methylpyrrolo[2,3-d]pyridazine and 6.6 ml (0.128 mol) of bromine are reacted in a total of 200 ml of dichloromethane as described for Example 3a. Yield: 85%, m.p.: 122°-123° C.