| 摘要 |
A process for producing cyclopentane derivatives of the formula WHEREIN R is hydrogen or a C1 to C6 alkyl group, X is a carboxyl or a carboalkoxy group, and the like; Y and Z each is a hydroxyl group, and the like; and n is an integer of from 5 to 7. The derivatives are useful as medicines. The process of this invention comprises the steps shown in the following reaction scheme: WHEREIN R, X, Y, Z and n are as defined above, and wherein R' is lower alkyl group.
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