Using CCOC(=O)C(O)(CC(=O)c1ccc(OCc2ccccc2)cc1)C(=O)OCC, NN to produce CCOC(=O)c1cc(-c2ccc(OCc3ccccc3)cc2)n[nH]c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.