5-FU Conjugate AIDS-057250 AIDS057250 [5-(5-Fluoro-2,4-dioxo(1,3-dihydropyrimidinyl))-3,4-dihydroxyoxolan-2-yl]methyl (2S)-2-{3-[N-(4-{3,5-bis[4-(hydroxyacetylamino)butyl]-2,4,6-trioxo(1,3,5-triazaperhydroinyl)}butyl)-N-hydroxycarbamoyl]propanoylamino}-3-methylbutanoate