Patent ID: 6103766
Filing Date: 2000-08-15
Classification: A61P,C07C,Y10S

Abstract:
A compound of structural Formula I or its pharmaceutically acceptable salts: ##STR4## R.sub.1 is independently H or a C.sub.1 -C.sub.8 alkyl; R.sub.2 is H, C.sub.1 -C.sub.3 alkyl, a halogen, OCH.sub.3, OCF.sub.3, CF.sub.3, CN, SCH.sub.3 or NHCOCH.sub.3 ; andR.sub.3 is H, C.sub.1 -C.sub.3 alkyl, a halogen, OCH.sub.3, OCF.sub.3, CF.sub.3, CN, SCH.sub.3 or NHCOCH.sub.3 with the proviso at least one R.sup.1 is C1-C8 alkyl; with the further proviso that when r.sup.2 and r.sup.3 are both hydrogen then the R.sup.1 's are both C1-C8 alkyl; and with the further proviso that when one of R.sup.2 and r.sup.3 is p-methoxy, and the other is hydrogen, then the R.sup.1 's cannot both be ethyl.