2,6-diamino-5-[6-(1,3-benzoxazol-2-yl)-6-hydroxyhexyl]-1H-pyrimidin-4-one

2,6-diamino-5-[5-hydroxy-5-(1,3-oxazol-2-yl)pentyl]-1H-pyrimidin-4-one

2,6-diamino-5-[6-hydroxy-6-(1,3-oxazol-2-yl)hexyl]-1H-pyrimidin-4-one

2,6-diamino-5-pent-4-enyl-1H-pyrimidin-4-one

2,6-diamino-5-hex-5-enyl-1H-pyrimidin-4-one