Lactam derivatives

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...

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514215, 540521, 546 86, A61K 3155, C07D40114

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active

051838206

ABSTRACT:
The invention provides potent and selective antagonists of 5-HT at 5-HT.sub.3 receptors which are tricyclic lactams of the formula (I) ##STR1## wherein Im represents an imidazolyl group of the formula: ##STR2## and R.sup.1 represents a hydrogen atom or a group selected from C.sub.1-6 alkyl, C.sub.3-6 alkenyl, C.sub.3-10 alkynyl, C.sub.3-7 cycloalkyl, C.sub.3-7 cycloalkylC.sub.1-4 alkyl, phenyl, phenylC.sub.1-3 alkyl, --CO.sub.2 R.sup.5, --COR.sup.5, --CONR.sup.5 R.sup.6 or --SO.sub.2 R.sup.5 ;

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patent: 4822881 (1989-04-01), Coates et al.
patent: 4859662 (1989-08-01), Coates et al.
patent: 4918080 (1990-04-01), Oxford et al.
patent: 4939144 (1990-07-01), Coates et al.
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