Synthesis and anti-tumor activity of glycosyl oxadiazoles derivatives.

A new series of glycosyl oxadiazoles compounds were synthesized and characterized through (1)H NMR, (13)C NMR, IR and HRMS. The anti-tumor activities for MDA-MB-231 of all these new compounds were screened in vitro by MTT assay. Due to the modification of gastrodin analogues, the anti-tumor activities of these 1,3,4-oxadiazoles derivatives were greatly improved. Six compounds (6 c, 6 d, 6 i, 6 j, 6 k and 6 l) displayed relatively higher MDA-MB-231 potency with IC50 values (0.89, 0.26, 1.35, 3.60, 0.95 and 1.08 μM) compared with the reference medicine Rosiglitazone (5.23 μM).