4-Hydroxy-5,6-dihydropyranone deriv. AIDS-058455 AIDS058455 N-[3-[1-(4-Hydroxy-2-oxo-6,6-di-n-propyl-5,6-dihydro-2H-pyran-3-yl)-propyl]-phenyl]-5-cabamoylpyridine-2-sulfonamide