2-hydrazino-6,6-dimethyl-4-oxo-3-phenyl-5,6-dihydro-8H-thiopyrano[4',3':4,5]thieno[2,3-d]pyrimidine 在
溶剂黄146 作用下,
以
甲醇 为溶剂,
反应 17.0h,
生成 2,8,8-trimethyl-1,6-dioxo-5-phenyl-7,8-dihydro-10H-thiopyrano[4'',3'':4',5']thieno[2',3':4,5]pyrimido[2,3-c]-1,2,4-triazine