[{"from": "human", "value": "Given this chemical reaction, what are some reagents that could have been used? [C][=O].[O][C][C][C][C][C][C][N][C][C][Ring1][=Branch1]>>[C][N][C][C][C][Branch1][Branch1][C][C][C][O][C][C][Ring1][#Branch2]"}, {"from": "gpt", "value": "[C][C][#N].[C][C][=Branch1][C][=O][O].[BH3-1][C][#N].[Na+1]"}]