| abstract |
1.- A compound having the structure where R1 is hydrogen, monofluoroalkyl, polyfluoroalkyl or straight or branched C1-C7 alkyl, aryl or heteroaryl, wherein the aryl or heteroaryl is optionally substituted with one or more of -F, -Cl, Br-, -I, -CN, -NO2, -CH3, CF3, -COCH3, -CO2R2, phenyl, phenoxy or straight or branched C1-C7 alkyl; wherein R2 is cyclopropyl or C3 alkyl -C4 straight or branched chain, wherein R3 is aryl or heteroaryl, wherein the aryl or heteroaryl is optionally substituted with one or more of F, -Cl, -Br, -I, -CN, -NO2, C1-alkyl -C7 straight or branched chain; where A is -H, -F, -Cl, -Br, -CN, -NO2, -COR3, -CO2R3, monofluoroalkyl, polyfluoralkyl or C1-C7 straight or branched chain alkyl ; wherein X is O or NH; yen wherein n is an integer from 0 to 5, inclusive. 2. The compound according to claim 1, wherein R1 is aryl optionally substituted with one or more of -F, -Cl, -Br, -I, -CN, -NO2, -COCH3, -CO2R2, or C1-C7 alkyl with straight chain; wherein R3 is phenyl; where A is H; and where X is O. |