[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a carbohydrate acid derivative anion obtained by deprotonation of the carboxy group of 3-deoxy-D-glycero-beta-D-galacto-nonulosonic acid It has a role as a bacterial metabolite. It is a carbohydrate acid anion and a monocarboxylic acid anion. It is a conjugate base of a 3-deoxy-D-glycero-beta-D-galacto-nonulosonic acid."}, {"from": "gpt", "value": "[C][C@@H1][Branch2][Ring1][#C][C@H1][Branch2][Ring1][#Branch2][C@@H1][Branch1][=N][O][C@@][Ring1][=Branch1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][O][C@@H1][Branch1][#Branch1][C@@H1][Branch1][Ring1][C][O][O][O][O][O]"}]