Using CN(C)C=O, FC(F)(F)Oc1ccc(-c2ncc(Br)cn2)cc1 to produce O=Cc1cnc(-c2ccc(OC(F)(F)F)cc2)nc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.