2-(2-chloroethyl)-6,7-dimethoxy-1(2H)-phthalazinone 、
2-(2-chloro-ethyl)-7-nitro-2H-phthalazin-1-one 、
N-苯基哌嗪 、
4-(4-氟苯甲酰基)哌啶 以
乙醇 为溶剂,
以2-{2-[4-(4-fluorobenzoyl)-piperidin-1-yl]-ethyl}-7-nitro-1-(2H)-phthalazinone hydrochloride is obtained (m.p. 280°-285° C., from ethyl alcohol)的产率得到2-{2-[4-(4-fluorobenzoyl)-piperidin-1-yl]-ethyl}-7-nitro-1-(2H)-phthalazinone hydrochloride