197915-50-7 2H-Pyran-2-one, 6-[2-(4-aminophenyl)ethyl]-3-[[2-(1,1-dimethylethyl)-4-(hydroxymethyl)-5-methylphenyl]thio]-5,6-dihydro-4-hydroxy-6-(1-methylethyl)- 4-Hydroxy-5,6-dihydropyrone deriv. AIDS-057000 AIDS057000