[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is an L-alpha-amino acid zwitterion formed from hercynylselenocysteine by transfer of a proton from the carboxy to the amino group; major species at pH 7.3. It is a tautomer of a hercynylselenocysteine."}, {"from": "gpt", "value": "[C][N+1][Branch1][C][C][Branch1][C][C][C@@H1][Branch2][Ring1][=Branch1][C][C][=C][N][=C][Branch1][Ring2][N][Ring1][Branch1][Se][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][NH3+1][C][=Branch1][C][=O][O-1]"}]