The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 14, 1981
Filed:
Sep. 04, 1979
David Hartley, Ware, GB;
Alexander W Oxford, Royston, GB;
Allen & Hanburys Limited, London, GB;
Abstract
There are provided compounds of the general formula (I): ##STR1## and physiologically acceptable salts thereof in which Z represents a group ##STR2## wherein R.sub.2 represents a hydrogen atom or a straight or branched chain alkyl radical, or Z can additionally represent a group ##STR3## and R.sub.1, R.sub.3 and R.sub.4, which may be the same or different, each represent a hydrogen atom, a cycloalkyl group, an aryl group which may optionally be substituted by one or more hydroxy, alkoxy, or halogen radicals, or a straight or branched alkyl or alkenyl group, which alkyl or alkenyl group may be substituted with an aryl group, which aryl group may optionally be substituted by one or more hydroxy, alkoxy or halogen radicals. The compounds possess spasmolytic and cAMP phosphodiesterase inhibitory activity.