4-Hydroxy-5,6-dihydropyranone deriv. AIDS-059141 AIDS059141 N-[3-[1-(4-Hydroxy-2-oxo-6,6-dipropyl-5,6-dihydro-2H-pyran-3-yl)-2,2-dimethylpropyl]-phenyl]-1-methyl-1H-imidazole-4-sulfonamide