[{"from": "human", "value": "Given this chemical reaction, what are some reagents that could have been used? [C][C][C][=C][C][=C][Branch1][Ring1][C][Br][C][=C][Ring1][Branch2].[C-1][#N]>>[C][C][C][=C][C][=C][Branch1][Ring2][C][C][#N][C][=C][Ring1][=Branch2]"}, {"from": "gpt", "value": "[C][S][Branch1][C][C][=O].[O].[Na+1]"}]