Using CC1CN(C(=O)C(F)(F)F)CCc2cc(-c3c(Br)cnn3C)ccc21 to produce CC1CNCCc2cc(-c3c(Br)cnn3C)ccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.