[{"from": "human", "value": "Generate a molecule based on this description. The molecule is a tripeptide composed of glycine, L-histidine and L-lysine residues joined in sequence. It has a role as a metabolite, a chelator, a vulnerary and a hepatoprotective agent."}, {"from": "gpt", "value": "[C][=C][Branch1][=Branch1][N][C][=N][Ring1][Branch1][C][C@@H1][Branch2][Ring1][Ring1][C][=Branch1][C][=O][N][C@@H1][Branch1][=Branch1][C][C][C][C][N][C][=Branch1][C][=O][O][N][C][=Branch1][C][=O][C][N]"}]