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