Using Nc1c[nH]c2ncc(Br)c(F)c12, O=C(O)c1cccc(C(F)(F)F)c1 to produce O=C(Nc1c[nH]c2ncc(Br)c(F)c12)c1cccc(C(F)(F)F)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.