Patent ID: 8207175

Claim:
A compound according to formula (I): wherein, R 1 and R 2 are each independently selected from the group consisting of H, branched or unbranched substituted or unsubstituted alkyl, branched or unbranched substituted or unsubstituted alkenyl, branched or unbranched substituted or unsubstituted alkynyl, carboxy and alkyloxycarbonyl, R 3 is a group of formula (II): wherein, R 4 has the same definition as that given for R 2 herein, R 5 has the same definition as that given for R 1 herein, R 6 and R 7 are each, at each occurrence, independently selected from the group consisting of H, branched or unbranched substituted or unsubstituted alkyl, branched or unbranched substituted or unsubstituted alkenyl, branched or unbranched substituted or unsubstituted alkynyl, carboxy, alkyloxycarbonyl, hydroxyl, amino, nitro, alkyloxy, alkylthio, formyl, cyano, carbamoyl and halo, or, independently, R 6 and R 7 may, independently at each occurrence, together form a ═CH 2 group, and n is 1, 2, 3, 4 or 5, with the proviso that if n is 1, R 6 and R 7 are independently selected from the group consisting of H, branched or unbranched substituted or unsubstituted alkyl, branched or unbranched substituted or unsubstituted alkenyl, branched or unbranched substituted or unsubstituted alkynyl, carboxy, alkyloxycarbonyl, hydroxyl, amino, nitro, alkyloxy, alkylthio, formyl, cyano, carbamoyl and halo, or, R 6 and R 7 may, together form a ═CH 2 group, and excluding the compounds having the formula (IV): wherein X═—CH(OH)—; or X═—CH(R)—CH(R)—, wherein R is Br, OH; and excluding the compounds having the formula (V): wherein n=1, 2, 3, 4 or 5.