Using O=C1Nc2cc(C(F)(F)F)ccc2N2CCN(CCc3ccccn3)CC12 to produce O=C1Nc2cc(C(F)(F)F)ccc2N2CCN(CCC3CCCCN3)CC12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.