Using CN1CCN(c2ccc([N+](=O)[O-])cc2Br)CC1, C=C(C)[Sn](CCCC)(CCCC)CCCC to produce C=C(C)c1cc([N+](=O)[O-])ccc1N1CCN(C)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.