Using c1c[nH]cn1, O=C(c1ccc(Cl)cc1)c1ccc(Cl)nc1 to produce O=C(c1ccc(Cl)cc1)c1ccc(-n2ccnc2)nc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.