[{"from": "human", "value": "What reagents could have been utilized in the following chemical reaction? [Br][C][C][C][C][Ring1][Ring1].[O][C@H1][C][O][C][C@H1][Ring1][Branch1][O]>>[O][C@H1][C][O][C][C@H1][Ring1][Branch1][O][C][C][C][C][Ring1][Ring1]"}, {"from": "gpt", "value": "[C][N][Branch1][C][C][C][=O].[H-1].[Na+1]"}]