Using CCOC(=O)CN1CC(c2ccccc2OC)c2cc(Cl)ccc2C(CC(C)C)C1=O to produce COc1ccccc1C1CN(CC(=O)O)C(=O)C(CC(C)C)c2ccc(Cl)cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.