Using O=Cc1ccc(Cl)cc1, CC1(C)CNC(=O)c2cc(N)ccc21 to produce CC1(C)CNC(=O)c2cc(NCc3ccc(Cl)cc3)ccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.