4-Hydroxy-5,6-dihydropyranone deriv. AIDS-058453 AIDS058453 N-[3-[1-(4-Hydroxy-2-oxo-6-n-propyl-6-(2-(4-fluorophenyl)ethyl)-5,6-dihydro-2H-pyran-3-yl)-propyl]-phenyl]-5-cabamoylpyridine-2-sulfonamide