Patent ID: 8791155

Claim:
A compound represented by Formula I wherein: -A-B— is —CH 2 —CH 2 —, —CH═CH—, —CH 2 —O—, —CH 2 —S— or —CH 2 —NH—; R 1 is C 1-4 alkyl; R 2 is C 1-20 alkyl or C 2-20 alkenyl; R 3 is —(CR 2 ) m S(O) 0-2 R a ; wherein R a is hydrogen, —(CR 2 ) m C(O)OR, —(CR 2 ) m C(O)NR′R″, optionally substituted C 2-12 alkenyl, optionally substituted aryl, optionally substituted cycloalkyl, or optionally substituted saturated, partially saturated, or unsaturated heterocyclyl, with the proviso that R a is not —(CR 2 ) 2 C(O)OC 2 H 5 when R 1 and R 2 are methyl; R 4 is hydrogen; optionally substituted C 1-4 alkyl; C 2-12 alkenyl; hydroxyalkyl; acyl; glucoside; phosphoryl; phosphoryloxyalkyl; carboxyalkylcarbonyl; aminoalkylcarbonyl; or alkylketocarbonyl; R 5 and R 6 are independently of each other C 1-6 alkyl or C 2-12 alkenyl; m is 0 to 3 R is hydrogen or C 1-4 alkyl; and R′ and R″ are independently of each other hydrogen, C 1-4 alkyl, hydroxyalkyl, aminoalkyl, optionally substituted aryl, optionally substituted benzyl, or optionally substituted heterocyclyl; or R′ and R″ taken together with the atom to which they are attached form a 5 to 8 membered aromatic, saturated or unsaturated ring, optionally incorporating one additional atom chosen from the group consisting of N, O, and S and optionally substituted with a substituent selected from the group consisting of lower alkyl, halo, cyano, alkylthio, lower alkoxy, oxo, phenyl, benzyl and carboxy; or a single stereoisomer, mixture of stereoisomers, or pharmaceutically acceptable salt thereof.