Using C#CCOC, Cc1c(C=NO)ncn1-c1cccc(Oc2ccccc2)c1 to produce COCc1cc(-c2ncn(-c3cccc(Oc4ccccc4)c3)c2C)no1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.