Using Brc1cnc2nnn(Cc3ccc4ncccc4c3)c2n1, C=C(OCC)[Sn](CCCC)(CCCC)CCCC to produce C=C(OCC)c1cnc2nnn(Cc3ccc4ncccc4c3)c2n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.