4-Hydroxy-2-pyranone, imidazolylsulfonamide deriv. AIDS-033213 AIDS033213 N-[3-[[R or S[Cyclopropyl[6-[2-cyclopropyl-1-(cyclopropylmethyl)ethyl]-4-hydroxy-2-oxo-2H-pyran-3-yl)methyl]phenyl]-1-methyl-1H-imidazole-4-sulfonamide