Using CN1CCNCC1, O=C(O)c1ccc(C(c2cc(F)ccc2F)S(=O)(=O)c2ccc(Cl)cc2)nc1 to produce CN1CCN(C(=O)c2ccc(C(c3cc(F)ccc3F)S(=O)(=O)c3ccc(Cl)cc3)nc2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.