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.
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): CHCl2COOR1 wherein R1 represents hydrogen atom or a protective group of carboxyl group, to prepare a compound represented by the following general formula (C):
wherein R1 has the same meaning as that defined above.