3,4-bis(t-butoxycarbonyl)-8-methoxy-5,5-dimethyl-2,3,4,4a-tetrahydro-5H-chromeno<3,4-c>pyridazine 在
palladium on activated charcoal
氢气 作用下,
以
乙醇 为溶剂,
反应 1.0h,
以94%的产率得到3,4-bis(t-butoxycarbonyl)-8-methoxy-5,5-dimethyl-trans-1,2,3,4,4a,10b-hexahydro-5H-chromeno<3,4-c>pyridazine