Using Cc1c(Cl)cc(C(=O)C=CC(=O)O)cc1Cl, CCOC(=S)[S-] to produce CCOC(=S)SC(=CC(=O)c1cc(Cl)c(C)c(Cl)c1)C(=O)O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.