Patent ID: 7999109

Claim:
A compound represented by the following structural formula: wherein: X 1 is CH; X 4 is N + —O − ; R 8 is Cl; m is 0; n is 1; and R 9 is aliphatic, haloalkyl, aryl, arylalkyl, alkoxy, cycloalkoxy, haloalkoxy, aryloxy, arylalkoxy, alkylthio, halo, nitro, cyano, hydroxy, NR 11 CO 2 R 12 , C(O)N(R 11 ) 2 , C(O)R 12 , CO 2 R 12 , OC(O)N(R 11 ) 2 , OC(O)R 12 , N(R 11 ) 12 , or NR 11 C(O)R 12 ; or two adjacent R 9 groups taken together with the atoms to which they are attached form a fused, saturated, unsaturated or partially unsaturated 5 to 7 membered ring having 0, 1, or 2 heteroatoms selected from N, O, and S; and wherein each R 11 is, independently, selected from H or an aliphatic group; and R 12 is an aliphatic group.