[{"from": "human", "value": "Given the following reaction, what are some possible reagents that could have been utilized? [O][=C][C][C][C][C][C][C][C][N][Ring1][=Branch2]>>[C][C][C][C][C][N][C][C][C][Ring1][=Branch2]"}, {"from": "gpt", "value": "[C][C][O][C][C].[Al+3].[H-1].[H-1].[H-1].[H-1].[Li+1]"}]