3-Chloro-N-{3-[cyclopropyl(4-hydroxy-2-oxo-5,6,7,8,9,10-hexahydro-2H-cycloocta[b]pyran-3-yl)methyl]phenyl}benzenesulfonamide 4OH-cyclooctapyran-2-one, PhSO2NH deriv. AIDS-043250 AIDS043250