虫草素

9-(3-deoxy-5-O-trityl-β-D-erythro-pentofuranosyl)adenine

9-(2-Deoxy-2-fluoro-α-D-arabinofuranosyl)-9H-purin-6-amine

6-amino-9-[5-O-(tert-butyldimethylsilyl)-2-deoxy-2-fluoro-β-D-arabinofuranosyl]-9H-purine

9-[5-O-(tert-butyldimethylsilyl)-2-deoxy-2-fluoro-3-O-(phenoxythiocarbonyl)-β-D-arabinofuranosyl]adenine