[{"from": "human", "value": "Could you give me a brief overview of this molecule? [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][Branch1][S][C@H1][Branch1][O][O][C@@H1][Branch1][Branch1][C@@H1][Ring1][=Branch1][O][C][O][O][C][N][C][=Branch1][C][=O][C][C][O][O][O]"}, {"from": "gpt", "value": "The molecule is a methyl glycoside that is N-acetyl-alpha-D-galactosaminyl-(1->3)-N-acetyl-alpha-D-galactosamine in which the anomeric hydroxy group is replaced by methoxy. It is a methyl glycoside and a disaccharide derivative."}]