Using COc1cc(SCC(C)(C)C(=O)O)c(Cl)cc1C(=O)O to produce COc1c(C(=O)O)cc(Cl)c2c1C(=O)C(C)(C)CS2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.