Using O=C(O)c1c[nH]c2ccccc12, Nc1ccc(Oc2cncnc2)nc1 to produce O=C(Nc1ccc(Oc2cncnc2)nc1)c1c[nH]c2ccccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.