[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is the D-enantiomer of selenomethionine. It is an enantiomer of a L-selenomethionine."}, {"from": "gpt", "value": "[C][Se][C][C][C@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N]"}]