Using CCOC(=O)CCC(=O)N1CC(Oc2ccccc2C(C)(C)C)C1 to produce CC(C)(C)c1ccccc1OC1CN(C(=O)CCC(=O)O)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.