[{"from": "human", "value": "Create a molecule with the structure as the one described. The molecule is an antineoplastic agent which exerts its effect by depolymerizing microtubules."}, {"from": "gpt", "value": "[C][O][C][=Branch1][C][=O][N][C][=N][C][=C][Branch1][Ring2][N][Ring1][Branch1][C][=C][Branch1][Branch1][C][=C][Ring1][#Branch1][C][=Branch1][C][=O][C][=C][C][=C][S][Ring1][Branch1]"}]