3(Imid-SO2NHBz)-4OH-2Pyranone deriv. AIDS-033635 AIDS033635 N-[3-[[R or S]-Cyclopropyl[4-hydroxy-2-oxo-6-[1(R or S)-phenylmethyl)propyl]-2H-pyran-3-yl)methyl]phenyl]-1-methyl-1H-imdazole-4-sulfonamide