Using CN1CCN(C(=O)C2CCNCC2)CC1, Fc1cncc(Br)c1Cl to produce CN1CCN(C(=O)C2CCN(c3c(F)cncc3Br)CC2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.