[{"from": "human", "value": "Describe this molecule. [C][O][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][=Branch1][C][=O][/C][=Branch1][#Branch1][=C][\\C][=Branch1][C][=O][O-1][/Br].[Na+1]"}, {"from": "gpt", "value": "The molecule is a cytostatic agent that interferes with DNA synthesis."}]