D4A

2',3'-Dideoxy-2'3'-didehy...

2'3'-didehydro-2'3'-dideoxyadenosine

2',3'-DIDEOXY-2',3'-DIDEHYDROADENOSINE

9-(2,3-Dideoxy-β-D-glycero-2-pentenofuranosyl)-9H-purine-6-amine

9-(2,3-Dideoxy-β-D-glycero-penta-2-enofuranosyl)-9H-purin-6-amine