Using C1=Cc2ccccc2C1, CC(C)(C)OC(=O)N(CCCl)CCCl to produce CC(C)(C)OC(=O)N1CCC2(C=Cc3ccccc32)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.