[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is a D-alpha-amino acid anion having methylselanylmethyl as the side-chain. It is a conjugate base of a Se-methyl-D-selenocysteine. It is an enantiomer of a Se-methyl-L-selenocysteinate."}, {"from": "gpt", "value": "[C][Se][C][C@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][N]"}]