[{"from": "human", "value": "Please propose potential reagents that might have been utilized in the provided chemical reaction. [C][O][C][=C][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][C][C][=Branch1][C][=O][N][C][C][Ring1][=Branch2]>>[C][O][C][=C][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][C][C][N][C][C][Ring1][Branch2]"}, {"from": "gpt", "value": "[B].[C][C][C][O][C][Ring1][Branch1]"}]