Using N#CC1(c2ncc(Br)cc2Cl)CC1, C=C[Sn](CCCC)(CCCC)CCCC to produce C=Cc1cnc(C2(C#N)CC2)c(Cl)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.