Using NCCc1cccc(C(F)(F)F)c1, CC(C)(C)c1ccc(C=O)cc1 to produce CC(C)(C)c1ccc(CNCCc2cccc(C(F)(F)F)c2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.