[{"from": "human", "value": "Please propose potential reagents that might have been utilized in the provided chemical reaction. [C][C][O][C][=C][C][Branch1][Ring1][C][#N][=C][C][=C][Ring1][Branch2][C][O][N][C][=Branch1][C][=O][C][=C][C][=C][C][=C][Ring1][=Branch1][C][Ring1][#Branch2][=O]>>[C][C][O][C][=C][C][Branch1][Ring1][C][#N][=C][C][=C][Ring1][Branch2][C][O][N]"}, {"from": "gpt", "value": "[C][C][O].[N][N].[O]"}]