Using COC(=O)CS, COC(=O)c1ccc(Cl)c(C(=O)OC)c1Cl to produce COC(=O)c1ccc2sc(C(=O)OC)c(O)c2c1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.