Using C=C[Sn](CCCC)(CCCC)CCCC, O=C(O)Cc1ccc(-n2cnnn2)cc1Br to produce C=Cc1cc(-n2cnnn2)ccc1CC(=O)O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.