[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is the L-enantiomer of selenomethionine. It is an enantiomer of a D-selenomethionine. It is a tautomer of a L-selenomethionine zwitterion."}, {"from": "gpt", "value": "[C][Se][C][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N]"}]