| abstract |
The invention relates to a process for the preparation of 5,6-dihydro-4H-cyclopenta (b) -6-thiophencarbonsÄure, which are processed for use in human medicine and veterinary medicine for therapeutic purposes to preparations. By the process according to the invention, 5,6-dihydro-4H-cyclopenta (b) -6-thiophenecarboxylic acids of the general formula wherein Ar is an optionally substituted phenyl or thienyl radical or a furyl radical and R is a low molecular weight alkyl group are prepared. |