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Details for Patent: 5,202,333

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Summary for Patent: 5,202,333

Title: Tricyclic 5-HT.sub.3 receptor antagonists
Abstract:The present invention is directed to 5-HT.sub.3 receptor antagonist compounds of formula I: ##STR1## in which the dashed line denotes an optional double bond; n is 1, 2 or 3; p is 0, 1, 2 or 3; q is 0, 1 or 2; each R.sup.1 is independently selected from halogen, hydroxy, lower alkoxy, lower alkyl, nitro, amino, amino carbonyl, (lower alkyl)amino, di(lower alkyl)amino, and (lower alkanoyl)amino; each R.sup.2 is lower alkyl; and R.sup.3 is a group selected from Formulae (a), (b), (c) and (d): ##STR2## in which u is 0 or 1; z is 1, 2 or 3; and R.sup.4 is C.sub.1-7 alkyl, C.sub.3-8 cycloalkyl, C.sub.3-8 cycloalkyl-C.sub.1-2 alkyl, or a group (CH.sub.2).sub.t R.sup.5 where t is 1 or 2 and R.sup.5 is thienyl, pyrrolyl, or furyl, each optionally further substituted by one or two substituents selected from C.sub.1-6 alkyl, C.sub.1-6 alkoxy, trifluoromethyl or halogen, or is phenyl optionally substituted by one or two substituents selected from C.sub.1-4 alkoxy, trifluoromethyl, halogen, nitro, carboxy, esterified carboxy, and C.sub.1-4 alkyl optionally substituted by hydroxy, C.sub.1-4 alkoxy, carboxy, esterified carboxy or in vivo hydrolyzable acyloxy; and the pharmaceutically acceptable salts, individual isomers, mixtures of isomers, processes for preparation, compositions, and methods of use thereof.
Inventor(s): Berger; Jacob (Los Altos Hills, CA), Clark; Robin D. (Palo Alto, CA), Eglen; Richard M. (Mountain View, CA), Smith; William L. (Sunnyvale, CA), Weinhardt; Klaus K. (San Francisco, CA)
Assignee: Syntex (U.S.A.) Inc. (Palo Alto, CA)
Application Number:07/704,565
Patent Claim Types:
see list of patent claims
Compound; Use; Composition;

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International Patent Family for Patent: 5,202,333

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria124698► Subscribe
Australia642178► Subscribe
Australia6696390► Subscribe
Brazil1100680► Subscribe
Canada2030718► Subscribe
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Due to the complexity of determining patent expirations even in a single country, compounded by the diversity of global patent laws, it is advisable to have patent counsel verify freedom to operate.

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