Using c1nc[nH]n1, O=C(CCl)Nc1cccc(-c2cnc3ccccc3n2)c1 to produce O=C(Cn1cncn1)Nc1cccc(-c2cnc3ccccc3n2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.