Patent ID: 7166723

Claim:
A compound of the formula wherein: R 1 is hydrogen, hydroxy, halo, cyano, carboxamido, carboalkoxy of two to six carbon atoms, alkyl of 1 to 6 carbon atoms, alkanoyloxy of 2 to 6 carbon atoms, amino, mono- or di-alkylamino in which each alkyl group has 1 to 6 carbon atoms, alkanamido of 2 to 6 carbon atoms, or alkanesulfonamido of 1 to 6 carbon atoms; A and D are selected from carbon substituted by R 1 and nitrogen, provided that at least one of A and D is nitrogen; E and G are carbon, substituted by R 1 ; R 7 is hydroxy, or alkoxy of the formula wherein R 9 is hydroxy, benzyl ether, substituted benzyl ethers such as 4-bromobenzyl ether, 4-chlorobenzyl ether, 3, 4-dimethoxybenzyl ether, 2- or 4-nitrobenzyl ether, or 4-methoxyphenyl; and R 8 is halogen or hydrogen; and salts thereof.