3,4-Diazole derivatives and pharmaceutical preparations containing these compounds
AssigneeLudwig Heumann & Co. GmbH
InventorsKurt Wegner, Irene Kramer, Helmut Schickaneder, Walter Schunack, Istvan Szelenyi, Kurt H. Ahrens
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Abstract
3,4-Diazole derivatives corresponding to the general formula I ##STR1## which exert a highly selective action on histamine-H.sub.2 receptors are described. Processes for the preparation of these compounds and pharmaceutical preparations containing these compounds are also described.
Claims6
1,3,4-Thiadiazole derivatives corresponding to the formula ##STR18## wherein R.sup.1 and R.sup.2 together with the nitrogen atom to which they are attached represent a piperidine ring optionally substituted with a methyl group;
- and their physiologically acceptable acid addition salts.
1,3,4-Thiadiazole derivatives corresponding to the formula ##STR19## wherein R.sup.1 and R.sup.2 taken together with the nitrogen atom to which they are attached represent a pyrrolidine ring optionally substituted with a methyl group;
- and their physiologically acceptable acid addition salts.
Dependencies are inferred from the claim text.