Three new oligostilbenes having a benzofuran moiety, viniferifuran, (+)-vitisifuran A and (−)-vitisifuran B, were isolated fromVitisvinifera ‘Kyohou’. The structures of these oligostilbenes including the absolute configuration were elucidated by spectroscopic and chemical methods. Furthermore, these were chemically transformed from (+)-ε-viniferin, (+)-vitisin A and (−)-vitisin B, respectively, whose