[{"from": "human", "value": "Provide a brief overview of this molecule. [C][Branch1][#Branch2][C][S][=Branch1][C][=O][=Branch1][C][=O][O][C@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N]"}, {"from": "gpt", "value": "The molecule is a homocysteic acid with D-configuration. It has a role as a metabotropic glutamate receptor agonist. It is an enantiomer of a L-homocysteic acid."}]