Patent ID: 7842819

Claim:
A compound having the structure of formula I: or a pharmaceutically acceptable salt thereof, wherein: Ring B is optionally substituted with 1-2 of halo, cyano, nitro, haloalkyl, alkoxy, sulfonyl, sulfinyl, sulfanyl, amino, carboxy, or aliphatic; Each Ra is independently H, aliphatic, phenyl or benzyl, wherein the aliphatic, phenyl, or benzyl is optionally substituted with halo, cyano, nitro, haloalkyl, alkoxy, sufonyl, sulfinyl, sulfanyl, amino, carboxy, or aliphatic; Each Rb is independently H, aliphatic, phenyl or benzyl, wherein the aliphatic, phenyl, or benzyl is optionally substituted with halo, cyano, nitro, haloalkyl, alkoxy, sufonyl, sulfinyl, sulfanyl, amino, carboxy, or aliphatic, or Ra and Rb together with the nitrogen atom to which they are bound form a heterocyclic ring optionally substituted with halo, cyano, nitro, haloalkyl, alkoxy, sufonyl, sulfinyl, sulfanyl, amino, carboxy, or aliphatic; Each Q is a branched or unbranched C 1 -C 4 -alkyl optionally substituted with halo, cyano, nitro, haloalkyl, alkoxy, sufonyl, sulfinyl, sulfanyl, amino, carboxy, or aliphatic; Each L is absent, —O—, —NRc-, or —S—; Each Rc is H, or aliphatic optionally substituted with halo, cyano, nitro, haloalkyl, alkoxy, sufonyl, sulfinyl, sulfanyl, amino, carboxy, or aliphatic; Each Rw is phenyl, indole, or quinoline, wherein the phenyl, indole, or quinoline is optionally substituted with halo, cyano, nitro, haloalkyl, alkoxy, sufonyl, sulfinyl, sulfanyl, amino, carboxy, or aliphatic; Each n is 1, 2, or 3; and Each m is 1, 2, or 3, provided that the sum of n and m is 3, 4, 5, or 6.