A five-membered aromatic ring containing two carbon atoms, one nitrogen atom, and two oxygen atoms.
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3-(Anilinomethyl)-5-(5-methyl-1-phenyl-1H-4-pyrazolyl)-2,3-dihydro-1,3,4-oxadiazole-2-thione
2-Chloro-2-phenyl-N-(5-phenyl-[1,3,4]oxadiazol-2-yl)-acetamide
C16H10Cl3FN2O2