SEARCH Articles Figures Tables 1,2,3-Oxadiazol 1,2,4-Oxadiazole 1.2.4- oxadiazol-5 one 2-Amino-l,3,4-oxadiazoles 2.5- Dihydro-1,2,4-oxadiazoles 3- -l ,2,4-oxadiazol 5-Amino-6- -2,3-dihydro Amino-1, 4-oxadiazole