Derivatives of thiophene-2-carboxylic acid and their pharmaceutically
申请人:Laevosan-Gesellschaft m.b.H. & Co. KG
公开号:US04590203A1
公开(公告)日:1986-05-20
The disclosure is directed to new derivatives of thiophene-2-carboxylic acid and the pharmaceutically acceptable acid or base addition salts thereof as well as to the process for the preparation thereof. The compounds of the invention have the structural formula ##STR1## in which R in position 3 or 4 of the thiophene nucleus is hydrogen, methyl, chlorine or bromine and R.sub.1 is hydrogen or C.sub.1 -C.sub.4 -alkyl. The compounds have a remarkably strong inhibitory effect on the thromboxane synthetase and are useful for the treatment of conditions such as inflammation, hypertension, thrombus, apoplexy, asthma, angina pectoris, ischemic heart diseases, ischemic conditions, migraine and vascular complications in connection with diabetes.