Using CC(=O)Nc1cc2c(cn1)CN(C)c1cc(Cl)ccc1-2, O=[Mn](=O)([O-])[O-] to produce CC(=O)Nc1cc2c(cn1)c(=O)n(C)c1cc(Cl)ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.