2-bicyclobenzimidazoles, processes for their preparation and medicaments containing these compounds

US5414088A · kind A · utility

Assignee

• Boehringer Mannheim GmbH · DE

Inventors

• Wolfgang von der Saal · Rosenheim, DE
• Harald Zilch · Mannheim, DE
• Erwin Bohm · Ladenburg, DE

Key dates

• Filing date: Apr 14, 1992
• Grant date: May 9, 1995
• Expiry date: Apr 14, 2012

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D487/04
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention concerns compounds of formula I ##STR1## where R.sup.1 is hydrogen, C.sub.1 -C.sub.6 -alkyl, C.sub.2 -C.sub.6 -alkenyl or C.sub.3 -C.sub.7 -cycloalkyl, R.sup.2 is C.sub.1 -C.sub.6 -alkyl, C.sub.2 -C.sub.6 -alkenyl, cyano, carboxy [carbonyl substituted by hydroxyl], C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -alkoxy, amino, C.sub.1 -C.sub.6 -alkylamino, di-C.sub.1 -C.sub.6 -alkylamino or hydrazino or R.sup.1 and R.sup.2 together are C.sub.2 -C.sub.6 -alkylidene or C.sub.3 -C.sub.6 -cycloalkylidene or R.sup.1 and R.sup.2, together with the carbon atoms to which they are attached, form a C.sub.3 -C.sub.7 -spirocycle, n is 0 or 1, R.sup.3 is hydrogen, C.sub.1 -C.sub.8 -alkyl, C.sub.2 -C.sub.6 -alkenyl, C.sub.2 -C.sub.6 -alkynyl, C.sub.3 -C.sub.7 -cycloalkyl, benzyl, carboxy-C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -alkyloxycarbonyl-C.sub.1 -C.sub.6 -alkyl or di-C.sub.1 -C.sub.6 -alkyloxophosphinyl-C.sub.1 -C.sub.6 -alkyl and R.sup.4 -R.sup. 6 are as in the specification. These compounds of formula I serve for the preparation of medicaments to inhibit erythrocyte and thrombocyte aggregation. Therefore, these compounds are useful for the treatment of diseases where these ag…