Using C#CC(O)c1c(-c2cccc(OC)c2)nc2c(Cl)cccn12 to produce C#CC(=O)c1c(-c2cccc(OC)c2)nc2c(Cl)cccn12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.