Using Clc1ccc2cc(Br)ccc2n1, C=C(OCC)[Sn](CCCC)(CCCC)CCCC to produce C=C(OCC)c1ccc2cc(Br)ccc2n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.