Using COc1ccc(-c2c(-c3ccc(OC)cc3)n(C)c(=O)n2C)cc1 to produce COc1ccc(-c2c(-c3ccc(O)cc3)n(C)c(=O)n2C)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.