2-[(4-amino-2-oxopyrimidin-1-yl)methoxy]ethyl benzoate

2-((4-ethoxy-2-oxopyrimidin-1(2H)-yl)methoxy)ethyl benzoate

1,2-dihydro-4-methoxy-2-oxo-1-(2'-benzoyloxyethoxymethyl)pyrimidine

1-(2-acetoxy-ethoxymethyl)-4-amino-1H-pyrimidin-2-one

1,3-二氧戊环