Cyclic dericatives, pharmaceutical compositions containing these compounds and processes for preparing them
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United States of America Patent
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Oct 27, 1998
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app pub date -
Dec 17, 1996
filing date -
Feb 22, 1993
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Abstract
The invention relates to cyclic derivatives of general formula ##STR1## wherein R.sub.a, R.sub.b, X and Y are as defined in claim 1, the tautomers, the stereoisomers including the mixtures thereof and the salts thereof, particularly the physiologically acceptable salts thereof with organic or inorganic acids or bases, which have valuable pharmacological properties, preferably aggregation-inhibiting effects, pharmaceutical compositions containing the compounds and processes for preparing them.
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