Junin virus 2 antiviral activity drug synthesis nonhuman 2 structure activity relation 2 unclassified drug 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-Triazolyl-3-thione 1 1,3,4 oxadiazole 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 2 (1,2 o isopropylidene alpha dextro xylo tetrafuranos 4 yl) 5 (4 chlorophenyl) 1,3,4 oxadiazole 1 2 alpha 3 alpha 22,23 tetrahydroxy 5 alpha stigmastan 6 one 1 2 alpha 3 alpha 22,23 tetrahydroxy homo 7 oxastigmastan 6 one 1 2 alpha 3 alpha 5 alpha 22,23 pentahydroxystigmatan 6 one 1 2 alpha 3 alpha dihydroxy 5 alpha stigmast 22 en 6 one 1 2 alpha 3 alpha dihydroxy 6 alpha fluoro 5 alpha stigmast 22 ene 1 2,3,22,23 bisacetyliden 2 alpha 3 alpha 22,23 tetrahydroxy 5 alpha sigmastan 6 one 1 3 (4 bromobenzoyl) 5 (1,2 o isopropylidene 3 o methyl alpha dextro xylofuranos 5 ulo 5 yl)imidazo[2,1 b]thiazole 1 3 (4 bromobenzoyl) 5 (1,2 o isopropylidene 3 o methyl alpha dextro xylofuranos 5 ulos 5 yl)imidazo[2,1 b]thiazole 1