Using O=[N+]([O-])c1cccc(OCc2cn(C(c3ccccc3)(c3ccccc3)c3ccccc3)cn2)c1 to produce Nc1cccc(OCc2cn(C(c3ccccc3)(c3ccccc3)c3ccccc3)cn2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.