申请人:Takeda Pharmaceutical Company Limited
公开号:EP1484322A1
公开(公告)日:2004-12-08
A process for preparing an optically active sulfoxide derivative (I) having CCR5 antagonism without causing side reactions such as racemization and Pummerer rearrangement, which comprises reacting a compound (II) with a compound (III) as shown by the following scheme:
wherein R1 represents hydrogen, an aliphatic hydrocarbon group or an aromatic group; R2 represents halogeno, alkyl, hydroxyl, amino, an aromatic group, etc.; R3 represents a 5- or 6-membered ring; R4 represents hydrogen, alkyl, alkoxy or halogeno; R5 represents hydrogen, a hydrocarbon group, a heterocyclic group, acyl, etc.; ring A represents an optionally substituted benzene ring; X represents a bond or divalent group comprising a linear part constituted of 1 to 4 atoms; m represents an integer of 1 to 5; n represents an integer of 0 to 3; p represents an integer of 0 to 2; and *1 represents an asymmetric center.
一种制备具有CCR5拮抗作用的光学活性亚砜衍生物(I)的方法,不会引起外消旋化和普默尔重排等副反应,包括将化合物(II)与化合物(III)反应,如下图所示:其中,R1代表氢、脂肪烃基或芳香基;R2代表卤素、烷基、羟基、氨基、芳香基等;R3代表5-或6-成员环;R4代表氢、烷基、烷氧基或卤素;R5代表氢、烃基、杂环基、酰基等;环A代表可选取代的苯环;X代表成分为1到4个原子的线性部分的键或二价基团;m代表1到5的整数;n代表0到3的整数;p代表0到2的整数;*1代表不对称中心。