(+/-)-1H-Imidazole-4-sulfonic acid, 1-methyl-, 4-[[5,6-dihydro-4-hydroxy-6-(1-methylethyl)-2-oxo-6-(2-phenylethyl)-2H-pyran-3-yl]thio]-5-(1,1-dimethylethyl)-2-methylphenyl ester 263842-96-2 AIDS-089251 AIDS089251