tert-butyl 7-(4-(benzyloxy)-2-oxopyridin-1(2H)-yl)-3,4-dihydropyrido[4',3':4,5]imidazo[1,2-a]pyridine-2(1H)-carboxylate 、
盐酸 以to provide the title compound (340 mg, 82%) as a white solid的产率得到4-(benzyloxy)-1-(1,2,3,4-tetrahydropyrido[4',3':4,5]imidazo[1,2-a]pyridin-7-yl)pyridin-2(1H)-one monohydrochloride