(6-{2-[(3S,2R,4R,5R)-5-(2,4-Dioxo(1,3-dihydropyrimidinyl))-4-decyloxy-3-methoxyoxolan-2-yl]-2-carbamoylethyl}(4S,5S,6R)-4,5-dihydroxy(4H-5,6-dihydropyran-2-yl))-N-((3S,7R)-7-methyl-2-oxoazaperhydroepin-3-yl)carboxamide AIDS-181950 AIDS181950