Using Sc1nc2ccccc2s1, C=C(C(=O)O)C(CC(=O)O)C(=O)O to produce O=C(O)CC(C(=O)O)C(CSc1nc2ccccc2s1)C(=O)O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.