Using COC(=O)Cc1c(C2CC2)[nH]c2ccc(OC)cc12, ClCc1ccccc1 to produce COC(=O)Cc1c(C2CC2)n(Cc2ccccc2)c2ccc(OC)cc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.