5-Cyano-N-[3-[1-(5,6,7,8,9,9a-hexahydro-4-hydroxy-2-oxo-4aH-cyclohepta[b]pyran-3-yl)propyl]phenyl]-2-pyridinesulfonamide AIDS-033329 AIDS033329 Benzylcycloheptapyran-2-one deriv.