Using O=Cc1cc2c(cc1[N+](=O)[O-])OCO2, O=[Mn](=O)(=O)[O-] to produce O=C(O)c1cc2c(cc1[N+](=O)[O-])OCO2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.