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