Synthesis, Characterization, and Biological Activities of Novel Schiff Bases Derived from 3-acetyl-4-hydroxy-2h-chromen-2-one and 5-(4-ethoxy/ halo substituted phenyl)-1,3,4-oxadiazol-2-amine . Int J Sci Res Sci & Technol. 2024;11(2):591-600. doi:10.32628/IJSRST524112100