Using O=C1NCC(c2ccc(F)c(F)c2)C2(CCN(C(=O)c3cc(C(F)(F)F)cc(C(F)(F)F)c3)CC2)O1, FC(F)CBr to produce O=C1OC2(CCN(C(=O)c3cc(C(F)(F)F)cc(C(F)(F)F)c3)CC2)C(c2ccc(F)c(F)c2)CN1CC(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.