[{"from": "human", "value": "What reagents could have been utilized in the following chemical reaction? [C][I].[C][C][=C][C][=C][Branch1][C][Cl][C][Branch1][C][O][=C][Ring1][Branch2]>>[C][O][C][=C][C][Branch1][C][C][=C][C][=C][Ring1][#Branch1][Cl]"}, {"from": "gpt", "value": "[C][C][#N].[O][=C][Branch1][C][O-1][O-1].[K+1].[K+1]"}]