[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is a keto-disaccharide consisting of alpha,alpha-trehalose with the keto group at the 3-position. It is a keto-disaccharide and a glycosyl glycoside."}, {"from": "gpt", "value": "[C][Branch2][Ring2][=N][C@@H1][C@H1][Branch2][Ring2][#Branch1][C@@H1][Branch2][Ring2][C][C@H1][Branch2][Ring1][=N][C@H1][Branch1][Ring2][O][Ring1][=Branch1][O][C@@H1][C@@H1][Branch1][P][C][=Branch1][C][=O][C@@H1][Branch1][=Branch2][C@H1][Branch1][Ring2][O][Ring1][#Branch1][C][O][O][O][O][O][O][O]"}]