Using CN1CCC(C(=O)c2cc(N=C(c3ccccc3)c3ccccc3)cc(C(F)(F)F)c2)CC1 to produce CN1CCC(C(=O)c2cc(N)cc(C(F)(F)F)c2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.