Using O=C([O-])[O-], CCOC(=O)c1cnc2cc(C(F)(F)F)ccc2c1O to produce CCOC(=O)c1cn(C)c2cc(C(F)(F)F)ccc2c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.