Using FC(F)(F)c1n[nH]c2c1CCCC2, CC(C)(C)OC(=O)CBr to produce CC(C)(C)OC(=O)Cn1nc(C(F)(F)F)c2c1CCCC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.