207736-05-8 2H-Pyran-2-one, 6(S)-[2-(4-aminophenyl)ethyl]-3-[[2-(1,1-dimethylethyl)-4-(hydroxymethyl)-5-methylphenyl]thio]-5,6-dihydro-4-hydroxy-6-(1-methylethyl)- 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)-, (6S)- AIDS-001438 AIDS001438 CI-1029 PD 178390 PD178390