N-cyano-N'-[2-[4-(4-fluorobenzoyl)-1-piperidinyl]ethyl]phenoxyformamidine 、
[1-(2-氨基乙基)哌啶-4-基](4-氟苯基)甲酮 以
乙醇 为溶剂,
生成
N,N'-Bis[2-[4-[4-fluorobenzoyl)-1-piperidinyl]ethyl]-N"-cyanoguanidine 、 N,N'-bis[2-[4-(4-fluorobenzoyl)-1-piperidinyl]ethyl]-N'-cyanoguanidine