4-Cyano-N-(3-{1-[6-(3-{[(4-cyanophenyl)sulfonyl]amino}phenyl)-6-ethyl-4-hydroxy-2-oxo-5,6-dihydro-2H-pyran-3-yl]propyl}phenyl)benzenesulfonamide 4-Hydroxy-5,6-dihydropyranone deriv. AIDS-060260 AIDS060260