[{"from": "human", "value": "Can you suggest some reagents that might have been used in the given chemical reaction? [O][=C][C][C][=C][C][=N][C][=C][N][Ring1][Branch1][C][=Ring1][=Branch2]>>[O][C][C][C][=C][C][=N][C][=C][N][Ring1][Branch1][C][=Ring1][=Branch2]"}, {"from": "gpt", "value": "[C][O].[C][O].[Cl][C][Cl].[O].[BH4-1].[Na+1]"}]