[{"from": "human", "value": "Please suggest some possible reagents that could have been used in the following chemical reaction. [O][C@H1][C][=C][C@@H1][Branch1][=Branch2][N][C][C][C][C][C][Ring1][=Branch1][C][Ring1][O]>>[O][C@H1][C][C][C@@H1][Branch1][=Branch2][N][C][C][C][C][C][Ring1][=Branch1][C][Ring1][O]"}, {"from": "gpt", "value": "[C][O].[O][=Pt][=O]"}]