Using CC(C)c1ccc(C2(O)C(=O)Nc3cc(Cl)ccc32)cc1 to produce CC(C)c1ccc(C2C(=O)Nc3cc(Cl)ccc32)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.