Using COc1ccc(-c2cc3c4cc(-c5ccn[nH]5)ccc4n(C)c3n(C)c2=O)c(Cl)c1 to produce Cn1c(=O)c(-c2ccc(O)cc2Cl)cc2c3cc(-c4ccn[nH]4)ccc3n(C)c21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.