[{"from": "human", "value": "Describe this molecule. [C][C][O][C][=Branch1][C][=O][C][N][C][=C][C][=C][C][=C][Ring1][=Branch1][C][=N][C][=C][C][=C][C][=C][C][=C][Ring1][=Branch1][C][=C][Ring1][#Branch2][N][=C][Ring1][=C][Ring2][Ring1][Branch1]"}, {"from": "gpt", "value": "The molecule is an ethyl ester and an organic heteropentacyclic compound."}]