Patent number: 5801170
Abstract: A compound of formula (I) or a salt thereof: ##STR1## wherein P is a 5 to 7 membered heterocyclic ring selected from the group consisting of thienyl, furyl, pyrrolyl, triazolyl, diazolyl, tetrazolyl, imidazolyl, oxadiazolyl, isothiazolyl, isoxazolyl, thiadiazolyl, pyridyl, pyrimdyl and pyrazinyl;R.sup.1, R.sup.2 and R.sup.3 are independently hydrogen, halogen, C.sub.1-6 alkyl, C.sub.3-6 cycloalkyl, C.sub.3-6 cycloalkenyl, C.sub.1-6 alkoxy, hydroxyC.sub.1-6 alkyl, C.sub.1-6 alkylOC.sub.1-6 alkyl, alkanoyl, optionally substituted phenyl, alkanoyloxy, hydroxy, nitro, trifluoromethyl, cyano, CO.sub.2 R.sup.9,CONR.sup.10 R.sup.11 where R.sup.9, R.sup.10 and R.sup.11 are independently hydrogen or C.sub.1-6 alkyl;R.sup.4 and R.sup.5 are independently hydrogen or C.sub.1-6 alkyl;R.sup.6 is hydrogen, halogen, hydroxy, C.sub.1-6 alkyl or C.sub.1-6 alkoxyR.sup.7 and R.sup.8 are independently hydrogen, C.sub.
Type:
Grant
Filed:
June 7, 1996
Date of Patent:
September 1, 1998
Assignee:
SmithKline Beecham plc
Inventors:
Laramie Mary Gaster, Francis David King, Paul Adrian Wyman