Using O=C(O)c1cc(OCc2ccccc2)cc(-c2ccc3c(c2)OCO3)c1, Nc1ccccc1 to produce O=C(Nc1ccccc1)c1cc(O)cc(-c2ccc3c(c2)OCO3)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.