| 主权项 |
1. A compound of general formula (VI) or a pharmaceutically acceptable salt thereof,wherein:
R is selected from the group consisting of: H, CHO, COCH3, NHCOCH3, F, Cl, Br, NO2, CF3, OCF3, CH3, C2H5, C3H7, straight or branched alkyl chain up to six carbons, straight and branched alkoxy/sulphoxy chain up to six carbons, and phenyl and substituted phenyl ring, wherein the substituents in phenyl ring are selected from the group consisting of F, Cl, Br, NO2, CF3, CH3, C2H5,C3H7, straight or branched alkyl chain up to six carbons, X is selected from the group consisting of: O, S, CH2, and NR3, wherein R3 ═H, CH3, C2H5, or C3H7, R1 is selected from the group consisting of: CH3, C2H5, C3H7, straight and branched alkyl chain up to eight carbons, cyclopentyl, cyclohexyl, pipendinyl, unsubstituted and substituted phenyl ring, wherein the substituents in phenyl ring are selected from the group consisting of F, Cl, Br, NO2, CF3, CH3, C2H5, OCH3, OC2H5, and OCF3, R2 is selected from the group consisting of: CHO, and —CH═CHCOR4 wherein R4 is selected from the group consisting of: CH3, C2H5, C3H7, straight and branched alkyl chain up to eight carbons, cyclopentyl, cyclohexyl, heteroaryl, pipendinyl, thienyl, furyl, pyridyl, indolyl and phenyl, which may be unsubtituted or substituted by one, two or three substituents being independently selected from the group consisting of F, Cl, Br, NO2, CF3, CH3, C2H5, OCH3, OC2H5, CF3, NMe2, NEt2, SCH3, and NHCOCH3. |
