6H-Purine-6-thione, 9-[2,3-dihydroxy-4-(hydroxymethyl)cyclopentyl]-1,9-dihydro-, (1a,2a,3b,4a)- 78738-53-1 AIDS-001030 AIDS001030 C-2',3'-OH-ara-6-SH-purine Carbocyclic-2',3'-hydroxy-ara-6-mercaptopurine nucleoside NSC613804