Using C#Cc1cccc(OCc2ccccc2)c1, CON(C)C(=O)c1ccccc1 to produce O=C(C#Cc1cccc(OCc2ccccc2)c1)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.