Using Cn1cc(-c2ccc3ncc(Cc4ccc5ncc(Br)n5c4)n3n2)cn1, C=C[Sn](CCCC)(CCCC)CCCC to produce C=Cc1cnc2ccc(Cc3cnc4ccc(-c5cnn(C)c5)nn34)cn12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.