151725-76-7 4'-Fluoro-5'-iodo-O2',O3'-(dimethylmethylene)adenosine isomer 9H-Purin-6-amine, 9-[5-deoxy-4-C-fluoro-5-iodo-2,3-O-(1-methylethylidene)-.alpha.-L-lyxofuranosyl]- AIDS-002998 AIDS002998 Nucleocidin derivative