Using COC(=O)C(=Cc1ccc(C)c(F)c1F)C(=O)CCl, [S-2] to produce COC(=O)C1C(=O)CSC1c1ccc(C)c(F)c1F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.