Using CCCC[Sn](Cl)(CCCC)CCCC, CN(C)c1ncc(Br)cn1 to produce CCCC[Sn](CCCC)(CCCC)c1cnc(N(C)C)nc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.