Boehringer Ingelheim Pharma Kg

Wolfgang Weinen

Norbert Hauel

Henning Priepke

Uwe Joerg Ries

Gerhard Mihm

Jean-Marie Stassen

Klaus Binder

Rainer Zimmerman

The present invention relates to 5-membered heterocyclic condensed benzoderivatives of formula ##STR1## wherein R.sub.a to R.sub.c, A, X and Y are defined as in claim 1, the tautomers, stereoisomers, mixtures thereof and the salts thereof, particularly the physiologically acceptable salts thereof with inorganic or organic acids or bases which have valuable properties. The compounds of the above formula I wherein R.sub.c denotes a cyano group are valuable intermediates for preparing the other compounds of formula I, and the compounds of the above formula I wherein R.sub.c denotes one of the following amidino groups and the tautomers and stereoisomers thereof have valuable pharmacological properties, particularly an antithrombotic activity.

Bicyclic heterocycles, the preparation thereof, and their use as

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Biberach, Germany

Wolfgang Weinen