[{"from": "human", "value": "Given the following reaction, what are some possible reagents that could have been utilized? [C][O][N][C][C][C][=Branch1][C][=O][C][C][Ring1][#Branch1]>>[C][O][N][C][C][C][Branch1][C][O][C][C][Ring1][#Branch1]"}, {"from": "gpt", "value": "[C][C][O].[BH4-1].[Cl-1].[NH4+1].[Na+1]"}]