IUPAC: (2S,3R)-2-[(2S)-5-carbamimidamido-2-[(2,3-dihydroxyphenyl)formamido]pentanamido]-3-hydroxybutanoic acid

SMILES: C[C@@H](O)[C@H](NC(=O)[C@H](CCCNC(N)=N)NC(=O)c1cccc(O)c1O)C(O)=O