Using O=C([O-])C#CC(=O)O, CCCc1ccc(OCCC(C)C)cc1S to produce CCCc1ccc(OCCC(C)C)cc1S/C(=C\C(=O)O)C(=O)O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.