Using CCOC(=O)Cc1nc(-c2ccc(F)cc2)oc1-c1ccsc1 to produce O=C([O-])Cc1nc(-c2ccc(F)cc2)oc1-c1ccsc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.