Patent ID: 7977511

Claim:
A compound or its pharmaceutically-acceptable salts of Formula (I) below, wherein: Z is a trialicyclic adamantane a: shown by Formula (A), wherein: R, R 1 , and R 2 are each independently H or CH 3 ; C 1 -C 6 straight chain or branched alkyls, C 3 -C 6 cycloalkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl; C 6 -C 10 aryl unsubstituted or substituted with straight chain or branched C 1 -C 6 alkyl, C 1 -C 6 alkoxyl, 1,3-dioxolanyl, cyano, halo, nitro, trihaloalkyl, C 1 -C 6 acyl, C 1 -C 6 dialkylamino, C 1 -C 6 acylamino, C 1 -C 6 mercaptoalkyl; alkylaryl (C 6 -C 10 ), such as a benzyl group unsubstituted or substituted with straight chain or branched C 1 -C 6 alkyl, C 1 -C 6 alkoxyl, 1,3-dioxolanyl, cyano, halo, trihaloalkyl, C 1 -C 6 acyl, C 1 -C 6 diaikylamino, and C 1 -C 6 mercaptoalkyl; and alkyldiaryls such as diphenylmethyl in which the aryls may be bridged by —CH 2 —CH 2 — or O or S, where the alkyldiaryls may be unsubstituted or substituted with straight chain or branched C 1 -C 6 alkyl, C 1 -C 6 alkoxyl, 1,3-dioxolanyl, cyano, halo, trihaloalkyl, C 1 -C 6 acyl, C 1 -C 6 dialkvlamino, and C 1 -C 6 mercaptoalkyl; n=0 or an integer from 1 through 6; Ŕ is H or C 1 -C 4 straight-chain alkyl; Y is a moiety of Formula (C), shown below, wherein, X − is a pharmaceutically-acceptable inorganic or organic counter ion.