Using O=[Mn](=O)(=O)[O-], C=C(OCC)c1cc(COCC(F)(F)F)nc(Cl)n1 to produce CCOC(=O)c1cc(COCC(F)(F)F)nc(Cl)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.