6-methyl-2-methylsulfanyl-5-piperidinomethyl-3H-pyrimidin-4-one
5-chloro-6-methyl-2-(methylthio)pyrimidin-4(3H)-one
3-butyl-6-methyluracil
4-nitro-benzenesulfonic acid-(4-methyl-6-oxo-1,6-dihydro-pyrimidin-2-ylamide)
N-(4-chloro-phenyl)-N'-(4-methyl-6-oxo-1,6-dihydro-pyrimidin-2-yl)-guanidine