Using CC1CCNCC1, O=C(O)c1cc2cc(C(=O)N3CCN(C4CCCC4)CC3)ccc2[nH]1 to produce CC1CCN(C(=O)c2cc3cc(C(=O)N4CCN(C5CCCC5)CC4)ccc3[nH]2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.