环戊基(哌嗪-1-基)甲酮 、
2-chloro-6,7-dimethoxy-4-hydrazinoquinazoline 以provides 4-hydrazino-2-[4-(cyclopentylcarbonyl)-1-piperazinyl]-6,7-dimethoxyquinazolinehydrochloride, m.p. 282°-284° C.的产率得到4-Hydrazino-2-[4-(cyclopentylcarbonyl)-1-piperazinyl]-6,7-dimethoxyquinazoline Hydrochloride