[{"from": "human", "value": "Create a molecule with the structure as the one described. The molecule is an antimetabolite (pyrimidine analogue) antineoplastic derivative of 5-fluorouracil. (NCI)"}, {"from": "gpt", "value": "[C][C][C][C][C][C][N][C][=Branch1][C][=O][N][C][=C][Branch1][#Branch2][C][=Branch1][C][=O][N][C][Ring1][#Branch1][=O][F]"}]