2,2-dimethyl-5-propyl-1,4-dihydro-2H-pyrano[4",3":4',5']pyrido[3',2':4,5]furo[3,2-d]pyrimidin-8-ylhydrazine 在
甲酸 作用下,
反应 5.0h,
以75%的产率得到8,8-dimethyl-11-propyl-7,10-dihydro-8H-pyrano[4",3":4',5']pyrido[3',2':4,5]furo[2,3-e][1,2,4]triazolo[1,5-c]pyrimidine