[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is a (1->4)-beta-D-glucan compound formed by methylating cellulose through exposure to NaOH/CH3Cl. It is functionally related to a (1->4)-beta-D-glucan."}, {"from": "gpt", "value": "[C][O][C][C@@H1][C@H1][Branch2][=Branch1][C][C@@H1][Branch2][Branch1][N][C@H1][Branch2][Branch1][=Branch1][C@@H1][Branch1][Ring2][O][Ring1][=Branch1][O][C@@H1][C@H1][Branch2][Ring2][#Branch1][O][C@H1][Branch1][O][C@@H1][Branch1][=Branch1][C@H1][Ring1][=Branch1][O][C][O][C][O][C@@H1][C@H1][Branch1][P][O][C@H1][Branch1][O][C@@H1][Branch1][=Branch1][C@H1][Ring1][=Branch1][O][C][O][C][O][C][C][O][C][C][O][C][O][C][O][C][O][C]"}]