1,2-Cyclopentanediol, 3-(6-amino-9H-purin-9-yl)-5-(chloromethyl)-, (1a,2b,3b,5b)- 118333-14-5 AIDS-001019 AIDS001019 C-2',3'-OH-4'-Cl ara-A Carbocyclic-2',3'-OH-4'-Cl ara-adenosine NSC613822