作者: Yasumasa Ikeshiro , Izumi Mase , Yutaka Tomita
DOI: 10.1016/0031-9422(92)80463-O
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摘要: Abstract Two new angular-type dihydropyranocoumarins, peujaponisin and (−)-visnadin, were isolated from the roots of Pencedanum japonicum structures determined as 3′( S )-senecioyloxy-4′( )-isovaleryloxy-3′,4′-dihydroseselin )-2-methylbutyryloxy-4′(S)-acetoxy-3′,4′-dihydroseselin, respectively, by spectroscopic analysis chemical reactions.