Using COC(=O)c1cc(Cl)nc(Cl)c1, C=C(OCC)[Sn](CCCC)(CCCC)CCCC to produce C=C(OCC)c1cc(C(=O)OC)cc(Cl)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.