2'-CDG 2'-Deoxycarbocyclic guanosine 6H-Purin-6-one,2-amino-1,9-dihydro-9-[3-hydroxy-4- (hydroxymethyl)cyclopentyl]-,[1R,3S,4R-(1alpha, 3beta, 4alpha)]- AIDS-025513 AIDS025513 CDG Carbocyclic 2'-dG D-CDG