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:
Jan. 28, 1992
Filed:
Apr. 14, 1989
Applicant:
Inventors:
Leslie R Hughes, Macclesfield, GB;
Howard Tucker, Macclesfield, GB;
Assignee:
Imperial Chemical Industries PLC, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; A61K / ; A61K / ; A61K / ;
U.S. Cl.
CPC ...
514520 ; 514678 ; 514679 ; 514685 ; 514708 ; 514709 ; 514713 ; 514710 ; 558413 ; 558414 ; 558415 ; 558423 ; 568 27 ; 568 28 ; 568 29 ; 568 31 ; 568 32 ; 568 33 ; 568 39 ; 568 43 ; 568 45 ; 568 49 ; 568 50 ; 568 52 ; 568 55 ;
Abstract
A compound of the formula ##STR1## wherein X has the formula --CR.sup.5 .dbd.CR.sup.6 --, --C.tbd.C-- or ##STR2## wherein ring A is phenyl, naphthyl or heterocyclic; wherein R.sup.1 is hydrogen, alkyl, alkanoyl or aroyl;