Using O=C(O)Cc1ccc(Br)c(C(F)(F)F)c1, CC(=O)N1CCN(c2ccc(N)nc2)CC1 to produce CC(=O)N1CCN(c2ccc(NC(=O)Cc3ccc(Br)c(C(F)(F)F)c3)nc2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.