ethyl 6-(benzyloxycarbonylamino)-1,4-dihydrocinnolin-3-yl carboxylate 在
manganese dioxide Petroleum ether 作用下,
以
乙酸乙酯 为溶剂,
反应 0.5h,
以to give, as solid residue, ethyl 6-(benzyloxycarbonylamino)cinnolin-3-yl carboxylate, m.p. 205° C.的产率得到Ethyl-6-(benzyloxycarbonylamino)-cinnolin-3-yl-carboxylat