[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is anionic form of dermatan 6'-sulfate arising from deprotonation of the carboxylic acid and sulfate groups of the repeating units; major species at pH 7.3. It is a conjugate base of a dermatan 6'-sulfate."}, {"from": "gpt", "value": "[C][C][=Branch1][C][=O][N][C@@H1][C@H1][Branch2][Ring1][Branch2][C@H1][Branch2][Ring1][Ring1][C@H1][Branch1][=Branch1][O][C@H1][Ring1][=Branch1][O][C][O][S][=Branch1][C][=O][=Branch1][C][=O][O-1][O][O][C@H1][C@@H1][Branch2][Ring1][Ring2][C@H1][Branch1][S][C@@H1][Branch1][N][C@@H1][Branch1][Ring2][O][Ring1][=Branch1][C][=Branch1][C][=O][O-1][O][O][O]"}]