Using FC(F)(F)c1cnc(-c2cc(CBr)nc3ncnn23)c(Cl)c1, OCC(F)(F)F to produce FC(F)(F)COCc1cc(-c2ncc(C(F)(F)F)cc2Cl)n2ncnc2n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.