申请人:Daiichi Sankyo Company, Limited
公开号:EP3144300A1
公开(公告)日:2017-03-22
A method of producing a compound of formula (I) or a pharmacologically acceptable salt thereof, useful as a therapeutic agent and/or a preventive agent for pain or for a sodium channel associated disease:
Ar1 and Ar2: a heteroaryl group or an aryl group, each optionally substituted; R1, R2 and R3: a hydrogen atom, a halogen atom, a C1-C6 alkyl group, a halogenated C1-C6 alkyl group, a hydroxy C1-C6 alkyl group, a C1-C6 alkoxy C1-C6 alkyl group or a C3-C7 cycloalkyl group or a cyano group; R4 and R5: a hydrogen atom, a halogen atom, a C1-C6 alkyl group, a halogenated C1-C6 alkyl group, a hydroxyl group, a hydroxy C1-C6 alkyl group, a C1-C6 alkoxy C1-C6 alkyl group, a C3-C7 cycloalkyl group or a C1-C6 alkoxy group; and n: an integer of 1 to 3, comprising a step of removing a protecting group P from the compound of formula (VI):
or a step of reacting a compound of formula (X) and a compound of formula (XI) :
wherein X represents a halogen atom.
一种生产式(I)化合物或其药理学上可接受的盐的方法,可用作疼痛或钠离子通道相关疾病的治疗剂和/或预防剂:
Ar1 和 Ar2:杂芳基或芳基,各自任选被取代; R1、R2 和 R3:氢原子、卤素原子、C1-C6 烷基、卤代 C1-C6 烷基、羟基 C1-C6 烷基、C1-C6 烷氧基 C1-C6 烷基或 C3-C7 环烷基或氰基; R4 和 R5:氢原子、卤素原子、C1-C6 烷基、卤代 C1-C6 烷基、羟基、羟基 C1-C6 烷基、C1-C6 烷氧基 C1-C6 烷基、C3-C7 环烷基或 C1-C6 烷氧基;以及 n:1 至 3 的整数,包括从式(VI)化合物中去除保护基 P 的步骤:
或式(X)化合物与式(XI)化合物反应的步骤:
其中 X 代表卤原子。