2-amino-6-(methoxycarbonylamino)-4-(1,2,3,4-tetrahydro-1-pyridyl)pyrimidine 1-oxide
(2-methoxyethyl) 5-[3,6-dihydro-1(2H)-pyridyl]-2-oxo-2H-[1,2,4]oxadiazolo[2,3-a]pyrimidine-7-carbamate
4-(1,2,3,6-tetrahydro-1-pyridyl)-2,6-bis(methoxycarbonylamino)-pyrimidine 1-oxide
N,N'-[6-(3,6-dihydro-2H-pyridin-1-yl)-3-oxy-pyrimidine-2,4-diyl]-bis-carbamic acid dibenzyl ester