Using O=C(CN1CCNCC1)c1ccccc1, CC(Cl)c1ccc(F)cc1 to produce CC(c1ccc(F)cc1)N1CCN(CC(=O)c2ccccc2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.