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:
Nov. 29, 1988
Filed:
Sep. 14, 1987
Rodney B Hargreaves, Poynton, GB;
Bernard J McLoughlin, Macclesfield, GB;
Stuart D Mills, Macclesfield, GB;
Imperial Chemical Industries PLC, London, GB;
Abstract
Heterocyclic compounds of the formula ##STR1## wherein A is a direct link, or is alkylene of 1 to 4 carbon atoms or alkenylene of 2 to 4 carbon atoms; wherein either X is --CR.sup.1 R.sup.2 -- and Y is --O--, --S-- or --NR.sup.3 --, wherein R.sup.1, R.sup.2 and R.sup.3, which may be the same or different, each is hydrogen or alkyl of up to 4 carbon atoms; or X is --O--, --S-- or --NH-- and Y is --CR.sup.1 R.sup.2 -wherein R.sup.1 and R.sup.2 have the meanings stated above; and wherein Het is a 5- or 6-membered heterocyclic ring containing 1, 2 or 3 heteroatoms selected from nitrogen, oxygen or sulphur atoms, which ring may be unsubstituted or may bear one or two substituents as set out in claim 1, provided that when X is --CR.sup.1 R.sup.2 and A is a direct link, Het is not unsubstituted 2-furyl; and salts thereof where appropriate; processes for their manufacture and pharmaceutical compositions containing them. The compounds possess cardiotonic and/or antihypertensive activity.