Using CCOC(=O)CN1CC(C)=CCC(NC(=O)c2nccc3ccccc23)C1=O to produce CC1=CCC(NC(=O)c2nccc3ccccc23)C(=O)N(CC(=O)O)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.