methyl (E)-(11'-ethylidene-2'-methoxy-9',10'-dihydro-6'H-spiro[[1,3]dioxolane-2,7'-[5,9]methanocycloocta[b]pyridin]-5'(8'H)-yl)carbamate 在
盐酸 作用下,
以
异丙醇 为溶剂,
以93%的产率得到[13-Eth-(E)-ylidene-5-methoxy-11-oxo-6-aza-tricyclo[7.3.1.02,7]trideca-2(7),3,5-trien-1-yl]-carbamic acid methyl ester