三丁基环丙基锡烷

5-bromo-N-trimethylsilyl-2-trimethylsilyloxypyrimidin-4-amine

胞苷酸

4-amino-1-[(2R,3R,4R,5R)-4-hydroxy-5-(hydroxymethyl)-3-sulfanyloxolan-2-yl]pyrimidin-2-one

4-amino-1-[O3,O5-(hydroxy-phosphoryl)-α-D-erythro-2-deoxy-pentofuranosyl]-1H-pyrimidin-2-one