tert-Butyl 2-(4-(2,4-dichlorobenzyloxy)-2-oxopyridin-1(2H)-yl)-10-methyl-5,6,7,8,9,10-hexahydro-5,8-iminocyclohepta[4,5]pyrrolo[2,3-b]pyridine-11-carboxylate 以45%的产率得到4-(2,4-Dichlorobenzyloxy)-1-(10-methyl-5,6,7,8,9,10-hexahydro-5,8-iminocyclohepta[4,5]pyrrolo[2,3-b]pyridin-2-yl)pyridin-2(1H)-one hydrochloride