4-amino-5-fluoro-1-[(2S,5R)-5-(hydroxymethyl)-2,5-dihydrofuran-2-yl]pyrimidin-2-one 4-amino-5-fluoro-1-[(2S,5R)-5-(hydroxymethyl)-2,5-dihydrofuran-2-yl]-2-pyrimidinone 4-amino-5-fluoro-1-[(2S,5R)-5-methylol-2,5-dihydrofuran-2-yl]pyrimidin-2-one 181785-84-2 .beta.-L-2',3'-Didehydro-2',3'-dideoxy-5-fluorocytidine .beta.-L-Fd4C beta-L-Fd4C AIDS-060327 AIDS060327 Elvucitabine L-D4FC L-F-D4C ACH-126,443 ACH-126443