Using C1=C(c2cccnc2Oc2ccc(Nc3nc4ccccc4[nH]3)cc2)CCOC1 to produce c1cnc(Oc2ccc(Nc3nc4ccccc4[nH]3)cc2)c(C2CCOCC2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.