Using CC1CCN(c2cc3nc(C(C)(C)C)sc3cc2N)CC1, S=C(Cl)Cl to produce CC1CCN(c2cc3nc(C(C)(C)C)sc3cc2N=C=S)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.