article 7 unclassified drug 6 oxadiazole derivative 5 synthesis 5 carbon nuclear magnetic resonance 4 chemical structure 4 proton nuclear magnetic resonance 4 drug synthesis 3 1,3,4 oxadiazole derivative 2 antiviral activity 2 nuclear magnetic resonance 2 structure activity relation 2 (5 aryl oxadiazole 3 yl) methyl dextro ribofuranoside derivative 1 1,2 o isopropylidene alpha dextro xylopentadialdo 1,4 furanose(2 bromobenzoyl)hydrazone 1 1,2 o isopropylidene alpha dextro xylopentadialdo 1,4 furanose(2 chlorobenzoyl)hydrazone 1 1,2 o isopropylidene alpha dextro xylopentadialdo 1,4 furanose(3 bromobenzoyl)hydrazone 1 1,2 o isopropylidene alpha dextro xylopentadialdo 1,4 furanose(3 chlorobenzoyl)hydrazone 1 1,2 o isopropylidene alpha dextro xylopentadialdo 1,4 furanose(4 bromobenzoyl)hydrazone 1 1,2 o isopropylidene alpha dextro xylopentadialdo 1,4 furanose(4 chlorobenzoyl)hydrazone 1 1,2,4 triazolyl 3 thione 1 1,2,4-Oxadiazole 1 1,2,4-Triazole 1 1,2,4-Triazolyl-3-thione 1 1,2:3:4 di o isopropylidene alpha dextro galacto 1,6 hexadialdo 1,5 pyranose derivative 1 1,3,4-Oxadiazole 1 2 (1,2 o isopropylidene alpha dextro xylo tetrafuranos 4 yl) 5 (2 bromophenyl) 1,3,4 oxadiazole 1 2 (1,2 o isopropylidene alpha dextro xylo tetrafuranos 4 yl) 5 (2 chlorophenyl) 1,3,4 oxadiazole 1 2 (1,2 o isopropylidene alpha dextro xylo tetrafuranos 4 yl) 5 (3 bromophenyl) 1,3,4 oxadiazole 1 2 (1,2 o isopropylidene alpha dextro xylo tetrafuranos 4 yl) 5 (3 chlorophenyl) 1,3,4 oxadiazole 1 2 (1,2 o isopropylidene alpha dextro xylo tetrafuranos 4 yl) 5 (4 bromophenyl) 1,3,4 oxadiazole 1