197915-33-6 2H-Pyran-2-one, 6-(4-aminophenyl)-3-[[2-(1,1-dimethylethyl)-5-methylphenyl]thio]-5,6-dihydro-4-hydroxy-6-(2-phenylethyl)- 4-Hydroxy-5,6-dihydropyrone deriv. AIDS-056984 AIDS056984