盐酸环胞苷

2,6-diacetamido-8-hydroxy-9-(3,5-O-diacetyl-2-O-tosyl-β-D-ribofuranosyl)purine

2,6-diamino-8-bromo-9-(2'-O-tosyl-β-D-ribufuranosyl)-purine

阿糖胞苷