[{"from": "human", "value": "What reagents could have been utilized in the following chemical reaction? [O][C][C][C][C][=C][C][=C][N][=C][Ring1][=Branch1]>>[O][=C][C][C][C][=C][C][=C][N][=C][Ring1][=Branch1]"}, {"from": "gpt", "value": "[C][C][N][Branch1][Ring1][C][C][C][C].[C][C][O][C][Branch1][C][C][=O].[C][S][Branch1][C][C][=O]"}]