Using CCOC(=O)CCNC(=O)c1ccc(NC(CC(C)C)c2oc3ccc(OC)cc3c2C)cc1 to produce COc1ccc2oc(C(CC(C)C)Nc3ccc(C(=O)NCCC(=O)O)cc3)c(C)c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.