1 OX7 Tert-butyl [(1s)-2-methyl-1-(1,3,4-oxadiazol-2-yl)propyl]carbamate 1.000 2 OX6 Tert-butyl [(1r)-2-methyl-1-(1,3,4-oxadiazol-2-yl)propyl]carbamate 1.000