(S)-[(S)-2-((S)-2-Amino-5-methyl-hexanoylamino)-6-heptanoylamino-hexanoylamino]-[5-(2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-3,4-dihydroxy-tetrahydro-furan-2-yl]-acetic acid AIDS-087990 AIDS087990 Leucyl-N-.epsilon.-octanoyllysyl-UPOC