Using CC(C)(C)OC(=O)N1CCOC(c2ccc(Br)c(F)c2)C1, N=C(c1ccccc1)c1ccccc1 to produce CC(C)(C)OC(=O)N1CCOC(c2ccc(N=C(c3ccccc3)c3ccccc3)c(F)c2)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.