SEARCH Articles Figures Tables 1,2,3-Oxadiazol 1,2,4-Oxadiazole 3- -l ,2,4-oxadiazol 3- Amino-5-phenyl-l,2,4-oxadiazole 5- Amino-2,3-dihydro-l,2,4-oxadiazol-3-one Amino-1, 4-oxadiazole