Two new resveratrol analougues,t-butyl 4-[(E)-2-(3,4,5-trimethoxyphenyl)vinyl]phenoxy i-butyrate and ethyl 4-[(E)-2-(3,4,5-trimethoxyphenyl)vinyl]phenoxy n-butyrate,are synthesized from 3,4,5-trimethoxybenzaldehyde and p-nitrotoluene via mutil-steps including condensation,catalytic reduction,diazotization,hydrolyzation,nucleophilic substitution.The effect of the new compounds on HL-60 and A549 cell proliferation are tested by MTT.The results show that the two new compounds exhibite the activities of anti-tumor proliferation.