Using C1=C(c2cccnc2OC2CNC2)CCOC1, O=C(O)c1ccncn1 to produce O=C(c1ccncn1)N1CC(Oc2ncccc2C2=CCOCC2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.