6-chloro-9-(5-O-(tert-butyldiphenylsilyl)-2,3-dideoxy-β-D-glycero-pentofuranosyl)-9H-purine

9-(5-O-(tert-butyldimethylsilyl)-2,3-dideoxy-D-ribofuranosyl)-6-chloropurine

(S)-5-羟甲基二氢呋喃-2-酮

1-O-acetyl-5-O-(tert-butyldiphenylsilyl)-2,3-dideoxy-2-(phenylselenenyl)-D-erythro-pentafuranose

5-(羟基甲基)二氢-2(3H)-呋喃酮