. "(S)-3-Hydroxy-4-[2-((R)-(S)-3-hydroxy-6-methyl-4-{(R)-3-methyl-2-[(R)-(S)-3-methyl-2-(3-methyl-butyrylamino)-butyrylamino]-butyrylamino}-heptanoylamino)-propionylamino]-6-methyl-heptanoic acid" . "pepstatin" . . . .