A variety of bisheterocycles, oxazolyl/thiazolyl/imidazolyl oxadiazoles having a styryl sulfonylmethyl group at the 5‐position of oxadiazole and trisheterocycles having a pyrrolyl/pyrazolyl sulfonylmethyl group at the 5‐position of oxadiazole were prepared adopting simple and versatile synthetic methodologies. All the compounds were screened for their antioxidantactivities. Compound 5b displayed