Using CI, O=C1CN=C(c2cccc(Cl)c2)c2cc(C(=O)c3ccc(Cl)cc3)ccc2N1 to produce CN1C(=O)CN=C(c2cccc(Cl)c2)c2cc(C(=O)c3ccc(Cl)cc3)ccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.