Patent ID: 7074961

Claim:
A compound of the formula: wherein Y 1 â€”Y 2 is selected from CH 2 â€”CH 2 , CHâ•CH, and CH 2 â€”O; Î³-Î² is selected from Câ•CH, CHâ€”CH 2 , and Nâ€”CH 2 ; each Râ€² and each Râ€³ are independently selected from H and (C 1 -C 8 ) alkyl; m is an integer ranging from 0 to 7; each n is an integer ranging from 0 to m; R 4 is selected from unsubstituted or substituted (C 1 -C 12 ) alkyl, (C 1 -C 12 ) alkenyl, (C 1 -C 12 ) alkynyl, aryl, alkylaryl, alkenylaryl, alkynylaryl, heteroaryl, alkylheteroaryl, alkenylheteroaryl, alkynylheteroaryl, cycloalkyl, cycloalkenyl, bicycloalkyl, bicycloalkenyl, polycycloalkyl, polycycloalkenyl, ketyl, and nothing; R 5 is selected from unsubstituted or substituted (C 1 -C 12 ) alkyl, (C 1 -C 12 ) alkenyl, (C 1 -C 12 ) alkynyl, aryl, alkylaryl, alkenylaryl, alkynylaryl, heteroaryl, alkylheteroaryl, alkenylheteroaryl, alkynylheteroaryl, cycloalkyl, cycloalkenyl, bicycloalkyl, bicycloalkenyl, polycycloalkyl, polycycloalkenyl, and ketyl; R 6 is unsubstituted or substituted (C 4 -C 12 ) alkyl, (C 1 -C 12 ) alkenyl, (C 1 -C 12 ) alkynyl, aryl, alkylaryl, alkenylaryl, alkynylaryl, alkylheteroaryl, alkenylheteroaryl, alkynylheteroaryl, cycloalkyl, cycloalkenyl, bicycloalkyl, bicycloalkenyl, polycycloalkyl, and polycycloalkenyl, or ketyl; Z 1 and Z 2 are each independently 0 to 4 halo substituents; and X âˆ’ is a counterion.