[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is an altrarate(2-). It is a conjugate base of a D-altrarate(1-). It is an enantiomer of a L-altrarate(2-)."}, {"from": "gpt", "value": "[C@@H1][Branch1][=C][C@@H1][Branch1][#Branch2][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][O][O][Branch1][#Branch2][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][O][O]"}]