Using CCOC(=O)Cc1oc(-c2ccc(F)cc2)nc1-c1cccs1 to produce O=C([O-])Cc1oc(-c2ccc(F)cc2)nc1-c1cccs1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.