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