Patent ID: 7498440

Claim:
A compound of formula (I) wherein: R1 is R2 and R3 are independently selected from the group consisting of F, G, H, K and L are independently selected from the group consisting of hydrogen, halogen, C 1-4 alkyl, halosubstituted C 1-4 alkyl, hydroxy substituted alkyl, and C 1-4 alkoxy; R 4 and R 5 are independently selected from the group consisting of hydrogen, halogen, C1-4 alkyl, aryl, C1-4 alkyl aryl, cyano, nitro, (CR7R7)pORb and (CR7R7)pNRbRb; R6 is selected from the group consisting of hydrogen, C1-4 alkyl; m is an integer having a value of 1 to 15; t is 0 or an integer having a value of 1 to 5; p is 0 or an integer having a value of 1 to 4; Rb is selected from the group consisting of hydrogen, C1-4 alkyl, aryl and C1-4 alkyl aryl; R7 is selected from the group consisting of hydrogen, C1-4 alkyl, halosubstituted C1-4 alkyl, and hydroxy substituted C1-4 alkyl; and X — is a pharmaceutically acceptable anion.