(2R,3R,4R,5R)-5-(2-{(3S,4S,2R)-6-[N-((3S,7R)-7-Methyl-2-oxoazaperhydroepin-3-yl)carbamoyl]-3,4-dihydroxy(2H-3,4-dihydropyran-2-yl)}-1-carbamoylethyl)-2-(2,4-dioxo(1,3-dihydropyrimidinyl))-4-methoxyoxolan-3-yl 2-methyldodecanoate AIDS-181951 AIDS181951