Using Cn1cc(-c2ccc3ncc(Cc4ccc(OCc5ccccc5)cc4)n3n2)cn1 to produce Cn1cc(-c2ccc3ncc(Cc4ccc(O)cc4)n3n2)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.