[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is uridine bearing an additional carboxymethyl substituent at position 5."}, {"from": "gpt", "value": "[C][=C][Branch2][Ring1][=C][C][=Branch1][C][=O][N][C][=Branch1][C][=O][N][Ring1][Branch2][C@H1][C@@H1][Branch1][=N][C@@H1][Branch1][=Branch2][C@H1][Branch1][Ring2][O][Ring1][Branch1][C][O][O][O][C][C][=Branch1][C][=O][O]"}]