2(1H)-Pyrimidinone, 4-amino-5-fluoro-1-[(2R,5R)-4-fluoro-2,5-dihydro-5-(hydroxymethyl)-2-furanyl]- 5-Fluorocytidine, 2',3'-didehydro-2',3'-dideoxy-3'-fluoro- AIDS-165384 AIDS165384