Using C#CCn1c(C(F)(F)F)c(C=O)c2ccccc21, C#CBr to produce C#CCn1c(C(F)(F)F)c(C(O)C#C)c2ccccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.