A-500359 M-2 AIDS-169125 AIDS169125 N-((3R,6R)-3-Methyl-5-oxo(1,4-thiazaperhydroepin-6-yl))(6-{[(2S,3S,4R,5R)-5-(2,4-dioxo(1,3-dihydropyrimidinyl))-4-hydroxy-3-methoxyoxolan-2-yl]carbamoylmethoxy}(4S,5S,6S)-4,5-dihydroxy(4H-5,6-dihydropyran-2-yl))carboxamide