5-甲基脲嘧啶

2’-氟-5-甲基阿拉伯糖基尿嘧啶

N-[1-[(2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-5-methyl-2-oxopyrimidin-4-yl]benzamide

羟基丙酮

2-羟基-4-氨基-5-羟甲基嘧啶