Using CCOC(=O)c1nnc(N2CCN(C(=O)c3ccccc3C(F)(F)F)CC2)s1 to produce O=C(c1ccccc1C(F)(F)F)N1CCN(c2nncs2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.