Using COC(=O)c1nc(N)ccc1Oc1nc(OC)cc(OC)n1, O=C=Nc1ccccc1 to produce COC(=O)c1nc(NC(=O)Nc2ccccc2)ccc1Oc1nc(OC)cc(OC)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.