Using CCOC(=O)c1nc(Br)n2c1c(=O)n(C)c1cc(C(F)(F)F)ccc12, CC(=O)[O-] to produce CCOC(=O)c1nc(O)n2c1c(=O)n(C)c1cc(C(F)(F)F)ccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.