Using CN1CCNCC1, CN1CCN(C(C)(C)C(=O)c2ccc(F)cc2)CC1 to produce CN1CCN(c2ccc(C(=O)C(C)(C)N3CCN(C)CC3)cc2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.