[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is the carbohydrate acid ester that is the methyl ester of N-acetylneuraminic acid. It is functionally related to a N-acetylneuraminic acid."}, {"from": "gpt", "value": "[C][C][=Branch1][C][=O][N][C@@H1][C@H1][Branch2][Ring1][N][C][C][Branch1][#C][O][C@H1][Ring1][=Branch1][C@@H1][Branch1][#Branch1][C@@H1][Branch1][Ring1][C][O][O][O][Branch1][#Branch1][C][=Branch1][C][=O][O][C][O][O]"}]