Using OCc1ccccc1, O=C1NCCc2[nH]c(-c3cccc4ccc(Cl)nc34)cc21 to produce O=C1NCCc2[nH]c(-c3cccc4ccc(OCc5ccccc5)nc34)cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.