[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is the N,N'-diacetylated derivative of chitobiose, but with no stereodesignation for the anomeric carbon atom. It has a role as a human metabolite, an Escherichia coli metabolite and a mouse metabolite. It is functionally related to a beta-D-glucosaminyl-(1->4)-D-glucosamine."}, {"from": "gpt", "value": "[C][C][=Branch1][C][=O][N][C@@H1][C@H1][Branch2][Ring2][#Branch2][C@@H1][Branch2][Ring2][Branch1][C@H1][Branch2][Ring1][#C][O][C@H1][Ring1][=Branch1][O][C@@H1][C@H1][Branch2][Ring1][Ring1][O][C][Branch1][=C][C@@H1][Branch1][Branch1][C@H1][Ring1][=Branch1][O][N][C][=Branch1][C][=O][C][O][C][O][C][O][O][O]"}]