[{"from": "human", "value": "Generate a molecule based on this description. The molecule is zwitterionic form of 3-bromo-L-tyrosine having an anionic carboxy group and a protonated amino group; major microspecies at pH 7.3. It is a tautomer of a 3-bromo-L-tyrosine."}, {"from": "gpt", "value": "[C][=C][C][=Branch2][Ring1][Ring1][=C][Branch1][#C][C][=C][Ring1][=Branch1][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][NH3+1][Br][O]"}]