Using OC(=S)c1ccccc1, CCCC(O)CCN(C)C(=O)OC(C)(C)C to produce CCCC(CCN(C)C(=O)OC(C)(C)C)SC(=O)c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.