Using CNC(=O)COC(=O)N1CCCN(c2ccc(Br)cn2)CC1, OB(O)c1ccc(OC(F)(F)F)cc1 to produce CNC(=O)COC(=O)N1CCCN(c2ccc(-c3ccc(OC(F)(F)F)cc3)cn2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.