申请人:Eisai Co., Ltd.
公开号:EP1602646A1
公开(公告)日:2005-12-07
In the present invention, the methods of producing a fluorinated cyclic benzamidine derivative (A), or a salt thereof, comprise the step of reacting a specific novel compound with ammonia or imide.
The methods of this invention for producing a morpholine-substituted phenacyl derivative (B), or a salt thereof, comprise reaction of a specific novel compound with morpholine, reaction of the product with a halogenating reagent, and deketalization of the product.
The methods of this invention for a producing cyclic benzamidine derivative (C), or a salt thereof, comprise the step of coupling compound (A), or a salt thereof, with compound (B), or a salt thereof, in the presence of an ether or a hydrocarbon.
The methods of this invention for recrystallizing a cyclic benzamidine derivative (C), or a salt thereof, comprise the steps of dissolving compound (C), or the salt thereof, in a mixed solvent comprising an alcohol and water, or a mixed solvent comprising an ether and water, and after dissolution, adding additional water to precipitate crystals of compound (C), or the salt thereof.
在本发明中,生产
氟化环
联苯胺衍
生物(A)或其盐的方法包括使特定的新型化合物与
氨或
亚胺反应的步骤。
本发明生产
吗啉取代的
苯甲酰衍
生物(B)或其盐的方法包括特定的新型化合物与
吗啉反应,产物与卤化试剂反应,产物
脱酮。
本发明生产环
联苯胺衍
生物(C)或其盐的方法包括在醚或烃存在下将化合物(A)或其盐与化合物(B)或其盐偶联的步骤。
本发明重结晶环
联苯胺衍
生物(C)或其盐的方法包括以下步骤:将化合物(C)或其盐溶解在由醇和
水组成的混合溶剂中,或由醚和
水组成的混合溶剂中,溶解后,加入额外的
水以析出化合物(C)或其盐的晶体。