Using CCOC(=O)CN=C=O, O=c1cc(O)c2ccc(F)cc2s1 to produce CCOC(=O)CNC(=O)c1c(O)c2ccc(F)cc2sc1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.