Using CCCC1Cc2cc(OC)c(Cl)c(Cl)c2C1=O, CC(Cl)=CCCl to produce CCCC1(CC=C(C)Cl)Cc2cc(OC)c(Cl)c(Cl)c2C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.