[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is a peptide zwitterion obtained by transfer of a proton from the carboxy to the amino group of bacilysin; major species at pH 7.3. It is a tautomer of a bacilysin."}, {"from": "gpt", "value": "[C][C@@H1][Branch2][Ring1][=N][C][=Branch1][C][=O][N][C@@H1][Branch1][S][C][C@@H1][C][C][C][=Branch1][C][=O][C@H1][C@@H1][Ring1][#Branch1][O][Ring1][Ring1][C][=Branch1][C][=O][O-1][NH3+1]"}]