[{"from": "human", "value": "Based on the given chemical reaction, suggest some possible reagents. [O][=C][Branch1][C][O][C][=C][C][=N][C][=C][Ring1][=Branch1][S]>>[O][C][C][=C][C][=N][C][=C][Ring1][=Branch1][S]"}, {"from": "gpt", "value": "[B].[C][C][C][O][C][Ring1][Branch1]"}]