Using CC[Sn](CC)(CC)c1nccs1, CON=C(C(=O)OC)c1ccccc1Br to produce CON=C(C(=O)OC)c1ccccc1-c1nccs1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.