Using O=C(NN1C(=O)CNC1=O)c1cc(=O)c(OCc2ccccc2)cn1Cc1ccccc1 to produce O=C(NN1C(=O)CNC1=O)c1cc(=O)c(O)c[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.