(R)-N-[3-[Cyclopropyl(5,6,7,8,9,10-hexahydro-4-hydroxy-2H-cycloocta[b]pyran-3-yl)methyl]pheny]-4-flurobenzenesulfonamide 4OH-cyclooctapyran-2-one, PhSO2NH deriv. AIDS-043521 AIDS043521