Using CCOc1c(F)cc(Cl)c2[nH]cc(CC(=O)OC)c12, O=C([O-])[O-] to produce CCOc1c(F)cc(Cl)c2c1c(CC(=O)OC)cn2C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.