[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is the 2-dehydro derivative of D-galactose."}, {"from": "gpt", "value": "[C][Branch2][Ring1][Branch1][C@@H1][C@@H1][Branch1][S][C@@H1][Branch1][N][C][=Branch1][C][=O][C][Branch1][Ring2][O][Ring1][#Branch1][O][O][O][O]"}]