butyl 7-<3,6-dihydro-1(2H)-pyridyl>-2H-<1,2,4>oxadiazolo<2,3-a>pyrimidine-5-carbamate
i-butyl 7-<3,6-dihydro-1(2H)-pyridyl>-2H-<1,2,4>oxadiazolo<2,3-a>pyrimidine-5-carbamate
methyl 7-<3,6-dihydro-1(2H)-pyridyl>-2-oxo-2H-<1,2,4>-oxadiazolo<2,3-c>pyrimidine-5-carbamate
2-amino-6-(methoxycarbonylamino)-4-(1,2,3,4-tetrahydro-1-pyridyl)pyrimidine 1-oxide