(2S)-2-[[(4R,7S,10S,13S,16S,19S,22S,25R)-22-(4-aminobutyl)-16-(2-amino-2-oxo-ethyl)-25-[[(2S)-2-amino-3-phenyl-propanoyl]amino]-13-(carboxymethyl)-10-(3-guanidinopropyl)-19-isobutyl-7-methyl-6,9,12,15,18,21,24-heptaoxo-1,2-dithia-5,8,11,14,17,20,23-heptaz
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