[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is major microspecies at pH 7.3. It is a piperidinecarboxylate and a zwitterionic group."}, {"from": "gpt", "value": "[C][C][Branch1][#C][C][C][C@H1][Branch1][Branch1][NH2+1][C][Ring1][=Branch1][C][=Branch1][C][=O][O-1][C]"}]