Using NC1c2ccsc2-c2c(C(=O)O)cc(-c3ccccc3)c(=O)n21 to produce O=C(O)c1cc(-c2ccccc2)c(=O)n2c1-c1sccc1C2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.