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摘要

Novel anti-atherosclerosis agents having the formula, WHEREIN TYPICAL EXAMPLES OF R1 and R2 are hydrogen, C1-C8 alkyl, phenyl, benzyl and phenethyl, or R1 and R2 may form cycloalkylidene together with a carbon atom bonded therewith; R3 and R4 each is hydrogen or C1-C4 alkyl; Y is hydroxyl, C1-C4 alkoxy, phenoxy or an amine residue; A is hydrogen or a group of the formula, WHEREIN R3, R4 and Y have the same meanings as defined above; and D and E each is hydrogen or halogen.