Using CNc1cc(C(O)CNCCOc2ccc3c(c2)[nH]c2ccccc23)ccc1OCc1ccccc1 to produce CNc1cc(C(O)CNCCOc2ccc3c(c2)[nH]c2ccccc23)ccc1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.