(4R or 4S)-N-(tert-butyl)-3-[(2S,3S)-2-hydroxy-3-({N-[(isoquinolin-5-yloxy)acetyl]-S-methyl-L-cysteinyl}amino)-4-phenylbutanoyl]-1,3-thiazolidine-4-carboxamide 1-oxide AIDS-013053 AIDS013053 KNI-272-metabolite