145901-85-5 2(1H)-Pyridinone, 5-ethyl-6-methyl-3-[[[2-(methylthio)phenyl]methyl]amino]- 3-[[(2-Methylthio)benzyl]amino]-5-ethyl-6-methylpyridin-2(1H)-one AIDS-004589 AIDS004589 Pyridinone deriv.