2-溴次黄嘌呤

5-bromo-6-hydroxy-5-methyl-1,3-diazinane-2,4-dione

1-[N-(1,3-dipivaloyloxyprop-2-yl)acetylaminomethyl]-5-methyl-1H,3H-pyrimidin-2,4-dione

正丁基锂

1-(3,5-脱水-2-脱氧-Β-D-苏-戊呋喃糖基)胸腺嘧啶