3,4-Dihydro-1H-isoquinoline-2-carboxylic acid, 5-{1-[2-(2-methoxycarbonyl-aziridin-1-yl)-2-oxo-acetyl]-butylcarbamoyl}-1-(3-methyl-2-{3-methyl-2-[(pyrazine-2-carbonyl)-amino]-butyrylamino}-butyryl)-pyrrolidin-3-yl ester AIDS-167296 AIDS167296