A method for conveniently preparing 2,2-dichloro-12-(4-chlorophenyl)-10-hydroxydodecanoic acid useful as an active ingredient of therapeutic agents for diseases such as diabetes at a high yield, which comprises the step of reacting a compound represented by the following general formula (A):
wherein X represents a halogen atom, and a compound represented by the following general formula (B): CHCl
2
COOR
1
wherein R
1
represents hydrogen atom or a protective group of carboxyl group, to prepare a compound represented by the following general formula (C):
wherein R
1
has the same meaning as that defined above.
一种制备2,2-二
氯-12-(4-
氯苯基)-10-羟基
十二酸的方法,该化合物可用作治疗糖尿病等疾病的活性成分,且得率高。该方法包括将下述通式(A)所代表的化合物(其中X代表卤素原子)与下述通式(B)所代表的化合物(其中R1代表氢原子或羧基的保护基)反应,以制备下述通式(C)所代表的化合物(其中R1具有与上述定义相同的含义)。