Using O=C1CCN(c2cccc(C(F)(F)F)c2)CCN1, C=CCCBr to produce C=CCCN1CCN(c2cccc(C(F)(F)F)c2)CCC1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.