[{"from": "human", "value": "Please provide possible reagents based on the following chemical reaction. [C][C][O][Ring1][Ring1].[C][C][C][C][C][C][C][C][N][C][C]>>[C][C][C][C][C][C][C][C][N][Branch1][Ring1][C][C][C][C][O]"}, {"from": "gpt", "value": "[C][C][O]"}]