1-(5-amino-2,5-dideoxy-2-fluoro-.beta.-D-arabinofuranosyl)-5-iodocytosine 105281-13-8 4-Amino-1-((2R,3S,4R,5R)-5-aminomethyl-3-fluoro-4-hydroxy-tetrahydro-furan-2-yl)-5-iodo-1H-pyrimidin-2-one 5'-NH2-FIAC AIDS-191184 AIDS191184