Using CS(=O)(=O)c1ccc(C(=O)O)c(Cl)c1C=O, CCON to produce CCON=Cc1c(S(C)(=O)=O)ccc(C(=O)O)c1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.