Using CC(C)(C)OC(=O)Nc1cc(-c2ccncc2N)nc(C(F)(F)F)n1, O=C(O)c1cccc(Br)n1 to produce CC(C)(C)OC(=O)Nc1cc(-c2ccncc2NC(=O)c2cccc(Br)n2)nc(C(F)(F)F)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.