[{"from": "human", "value": "Given the following reaction, what are some possible reagents that could have been utilized? [O][C][C][=C][C][=C][C][NH1][C][=C][C][Ring1][=Branch2][=Ring1][Branch1]>>[O][=C][C][=C][C][=C][C][NH1][C][=C][C][Ring1][=Branch2][=Ring1][Branch1]"}, {"from": "gpt", "value": "[C][C][C][C][C][C][Ring1][=Branch1].[Cl][C][Cl].[Mn+4].[O-2].[O-2]"}]