Using CN1CCc2cc(Cl)c(O)cc2C(c2cccc3ccoc23)C1, COCCl to produce COCOc1cc2c(cc1Cl)CCN(C)CC2c1cccc2ccoc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.