Patent ID: 7385058

Claim:
A compound of formula I: wherein each X is independently (CH 2 ) n and each n is independently 1-3; Y is a single bond, O, (C 1 -C 8 )alkylene, (C 5 -C 12 )arylene, carbonyl, oxycarbonyl, carbonyloxy, NR a , or S(O) m ; each R 1 is independently H, (C 1 -C 8 )alkyl, (C 3 -C 8 )cycloalkyl, (C 3 -C 8 )cycloalkyl(C 1 -C 6 )alkyl, (C 1 -C 8 )perfluoroalkyl, (C 5 -C 12 )aryl, (C 5 -C 2 )heteroaryl, (C 5 -C 12 )heterocyclyl, Si((C 1 -C 6 )alkyl) 3 , Si((C 1 -C 6 )alkoxy) 3 , Si((C 5 -C 12 )aryl) 3 , or Si((C 5 -C 12 )aryloxy) 3 ; R 2 is H, OR a , (C 1 -C 8 )alkyl, (C 3 -C 8 )cycloalkyl, (C 3 -C 8 )cycloalkyl(C 1 -C 6 )alkyl, (C 1 -C 8 )perfluoroalkyl, (C 5 -C 12 )aryl, (C 5 -C 12 )heteroaryl, (C 5 -C 12 )heterocyclyl, Si((C 1 -C 6 )alkyl) 3 , Si((C 1 -C 6 )alkoxy) 3 , Si((C 5 -C 12 )aryl) 3 , Si((C 5 -C 12 )aryloxy) 3 , NHR a , N(R a ) 2 , halo, nitro, cyano, S(O) m OR a , SO 3 H, or P(O) 2 OR a ; R a is H, (C 1 -C 6 )alkyl, (C 1 -C 6 )alkylcarbonyl, (C 5 -C 12 )aryl, or (C 5 -C 12 )aryloxy; m is 0-2; any alkyl is optionally substituted with one to three halo, hydroxyl, nitro, cyano, (C 5 -C 12 )aryl, (C 1 -C 6 )alkoxy, trifluoromethyl, oxo, thioxo, or NR b R c , groups, wherein R b and R c are each independently hydrogen, (C 1 -C 6 )alkyl, or C(═O)OR d wherein R d is hydrogen or (C 1 -C 6 )alkyl; any alkyl is optionally interrupted with one to three oxy, thio, amino, sulfinyl, or sulfonyl groups; any alkyl is optionally partially unsaturated; any aryl is optionally substituted with one or more halo, hydroxyl, nitro, cyano, (C 1 -C 6 )alkoxy, trifluoromethyl, oxo, NR b R c , or C(O)OR d groups; provided that when R 1 is methyl, —Y—R 2 is not hydrogen or (C 1 -C 6 )alkyl; and provided that when R 1 is hydrogen, —Y—R 2 is not hydrogen.