Using CC(C)(CN)C(=O)O, CCCCOC(=O)c1ncc2cc(Sc3ccccc3)ccc2c1O to produce CC(C)(CNC(=O)c1ncc2cc(Sc3ccccc3)ccc2c1O)C(=O)O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.