Patent ID: 7618958

Claim:
A compound according to the structure wherein R is selected from H, Si(CH 3 ) 3 , t-butyl, isopropyl, methyl, and cyclopropyl; wherein R 1 is selected from H, CH 3 , CF 3 , CH 2 CF 3 , CH 2 CH 3 , CH 2 C≡CH, an alkyl, and cyclopropyl; wherein R 2 is a substituted or unsubstituted, at least partially unsaturated, 5 or 6 membered cyclic or heterocyclic ring, and wherein said substitution is selected from F, Cl, Br, and NO 2 at the 2′-position; wherein R 5 is selected from a branched or straight chain C 1 to C 4 halogenated or unhalogenated alkyl and a methyl cyclopropyl, and, wherein R 6 is R or S, and, wherein R 6 is selected from CH 3 , OH, OAc, OCON(CH 3 ) 2 , COOCH 3 and COOC 2 H 5 , or a salt thereof.