4OH-cyclooctapyran-2-one, Ethylene-SO2-NH deriv. AIDS-043234 AIDS043234 N-[3-[Cyclopropyl(5,6,7,8,9,10-hexahydro-4-hydroxy-2-oxocycloocta[b]pyran-3-yl)methyl]phenyl]ethylenesulfonamide