[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is an L-polyhomomethionine in which there are eight methylene groups between the alpha-carbon and sulfur atoms. It is a L-polyhomomethionine and a hexahomomethionine. It is a tautomer of a hexahomomethionine zwitterion."}, {"from": "gpt", "value": "[C][S][C][C][C][C][C][C][C][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N]"}]