Abstract: There are described novel compounds of the general formula ##STR1## in which R in position 3 or 4 is hydrogen, methyl, chlorine or bromine and R.sup.2 is C.sub.1 -C.sub.10 -alkyl, C.sub.3 -C.sub.7 -cycloalkyl or benzyl, and the pharmaceutically acceptable addition salts thereof with weak organic acids as well as a process for the preparation thereof.The compounds of formula (I) are inhibitors of thromboxane synthetase.

Abstract: 1-(3-(2-hydroxy-3-alkylaminopropoxy)-2-thienyl)-3-phenyl-1-propanones represented by formula (I) ##STR1## wherein R.sub.1 and R.sub.2 each represent a lower alkyl group, and a process for the preparation of the same. The compounds of the present invention are useful in the treatment of cardiac arrhythmias.

Abstract: The invention relates to new therapeutically valuable derivatives of 2-(2-thienyl)-imidazo[4,5-b]pyridines of the general formula ##STR1## in which R is methyl or ethyl, R.sub.1 is hydrogen or methyl and R.sub.2 is methylthio, methylsulfinyl oder methoxy, and their pharmaceutically acceptable acid addition salts, which compounds possess pharmacological properties, especially a positively inotropic activity on the heart.

Abstract: 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.