Using COC(c1cccc(OCc2ccccc2)c1C)c1c[nH]c2ncccc12 to produce Cc1c(Cc2c[nH]c3ncccc23)cccc1OCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.