Using CCOC(=O)c1coc(C2(NC(=O)OCc3ccccc3)CC2)n1 to produce O=C(NC1(c2nc(C(=O)O)co2)CC1)OCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.