Using CCCC1CN(C(=O)OC(C)(C)C)CC(OCc2ccc3ccccc3c2)C1c1ccc(Cl)cc1 to produce CCCC1CNCC(OCc2ccc3ccccc3c2)C1c1ccc(Cl)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.