IUPAC: (2S)-1-[(2S)-2-{[(2S)-1-[(2S)-2-[(2S)-2-[(2S)-2-[(2S)-2-[(2S)-2-{[(2S)-1-[(2S)-2-{[(4R,7S,10S,13S,16S,19R)-19-[(2S)-2-[(2S)-2-[(2S)-6-amino-2-[(2S)-2-[(2S)-2-amino-4-methylpentanamido]-5-carbamimidamidopentanamido]hexanamido]-3-(1H-imidazol-5-yl)propanamido]-3-carbamoylpropanamido]-7,10-bis(3-carbamimidamidopropyl)-13-(2-carbamoylethyl)-16-(2-methylpropyl)-6,9,12,15,18-pentaoxo-1,2-dithia-5,8,11,14,17-pentaazacycloicosan-4-yl]formamido}-4-(methylsulfanyl)butanoyl]pyrrolidin-2-yl]formamido}-4-methylpentanamido]-3-(1H-imidazol-5-yl)propanamido]-3-hydroxypropanamido]-5-carbamimidamidopentanamido]-3-methylbutanoyl]pyrrolidin-2-yl]formamido}-3-phenylpropanoyl]pyrrolidine-2-carboxylic acid

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