Using COc1cc2c(cc1O)C1Cc3c(Cl)cc(OC)c(O)c3CN1CC2 to produce Oc1cc2c(cc1O)C1Cc3c(Cl)cc(O)c(O)c3CN1CC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.