Using C#Cc1cc(Cl)cc(Cl)c1, CON(C)C(=O)c1cnc2ccccc2c1 to produce O=C(C#Cc1cc(Cl)cc(Cl)c1)c1cnc2ccccc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.