Patent ID: 8592451

Claim:
A compound of formula (I) wherein R 1 and R 2 are each independently (C 1 -C 4 )alkyl, (C 1 -C 4 )alkenyl, or (C 1 -C 4 )alkynyl; R 3 and R 4 are each independently hydrogen or (C 1 -C 4 )alkyl, (C 1 -C 4 )alkenyl, or (C 1 -C 4 )alkynyl; R 11 , R 12 , R 13 , and R 14 are each independently (C 1 -C 4 )alkoxy or (C 1 -C 4 )acyloxy; or any two adjacent R 11 , R 12 , R 13 , or R 14 are methylenedioxy; m1 and m3 are each independently 2, 3, or 4; m2 and m4 are each independently 2 or 3; n1 and n2 are each independently 1 to about 4; p1 and p2 are each independently 0 or 1; X is independently at each occurrence a pharmaceutically acceptable anion; including any stereoisomer thereof, or any solvate or hydrate thereof.