Using OB(O)c1ccc(F)c(-c2cccnc2)c1F, CC(C)(O)c1ccn2c(Br)cnc2n1 to produce CC(C)(O)c1ccn2c(-c3ccc(F)c(-c4cccnc4)c3F)cnc2n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.