Using CC(=O)c1ccc(-c2ccc(CC(C)N3C(=O)c4ccccc4C3=O)cc2)cc1 to produce CCc1ccc(-c2ccc(CC(C)N)cc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.