(+/-)-3-Pyridinesulfonic acid, 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 263842-98-4 AIDS-089253 AIDS089253