[{"from": "human", "value": "What reagents could have been utilized in the following chemical reaction? [C][C][=C][C][=C][Branch1][=Branch1][N+1][=Branch1][C][=O][O-1][C][Branch1][Ring1][C][#N][=C][Ring1][O]>>[C][C][=C][C][=C][Branch1][C][N][C][Branch1][Ring1][C][#N][=C][Ring1][=Branch2]"}, {"from": "gpt", "value": "[C][C][O].[Cl].[Cl][Sn][Cl].[Na+1].[OH1-1]"}]