Patent number: 5817833
Abstract: Compounds of formula (I) or a salt thereof: ##STR1## R.sup.1 is hydrogen, halogen, C.sub.1-6 alkyl, C.sub.3-6 cycloalkyl, COC.sub.1-6 alkyl, C.sub.1-6 alkoxy, hydroxy, hydroxyC.sub.1-6 alkyl, hydroxyC.sub.1-6 alkoxy, C.sub.1-6 alkoxyC.sub.1-6 alkoxy, acyl, nitro, trifluoromethyl, cyano, CHO, SR.sup.9, SOR.sup.9, SO.sub.2 R.sup.9, SO.sub.2 NR.sup.10 R.sup.11, CO.sub.2 R.sup.10, NR.sup.10 SO.sub.2 R.sup.11, CONR.sup.10 R.sup.11, CO.sub.2 NR.sup.10 R.sup.11, CONR.sup.10 (CH.sub.2).sub.p CO.sub.2 R.sup.11, (CH.sub.2).sub.p NR.sup.10 R.sup.11, (CH.sub.2).sub.p CONR.sup.10 R.sup.11, (CH.sub.2).sub.p NR.sup.10 COR.sup.11, (CH.sub.2).sub.p CO.sub.2 C.sub.1-6 alkyl, CO.sub.2 (CH.sub.2).sub.p OR.sup.10, CONHNR.sup.10 R.sup.11, NR.sup.10 R.sup.11, NR.sup.10 CO.sub.2 R.sup.11, NR.sup.10 CONR.sup.10 R.sup.11, CR.sup.10 .dbd.NOR.sup.11, CNR.sup.10 .dbd.NOR.sup.11, where R.sup.10 and R.sup.11 are independently hydrogen or C.sub.1-6 alkyl and p is 1 to 4;R.sup.2 and R.sup.3 are independently hydrogen, halogen, C.sub.
Type:
Grant
Filed:
February 21, 1997
Date of Patent:
October 6, 1998
Assignee:
SmithKline Beecham p.l.c.
Inventor:
Laramie Mary Gaster