Using CC(C)(C)ON=c1cc(-c2cc3ccccc3cn2)oc2ccc(Br)cc12, C=C[Sn](CCCC)(CCCC)CCCC to produce C=Cc1ccc2oc(-c3cc4ccccc4cn3)cc(=NOC(C)(C)C)c2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.