Semburins and swertiols, novel 2,8-dioxabicyclo(3.3.1)nonanes and their precursory alcohols, from Swertia japonica Makino.
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概要
- 論文の詳細を見る
The steam-volatile constituents of <I>Swertia japonica</I> Makino have been studied, and 71 components of the oil (comprising nearly 90% of the sample) have been identified. Structures of three novel 2,8-dioxabicyclo[3.3.1]nonanes (semburin, isosemburin, and neosemburin) and their precursory alcohols (swertiol, isoswertiol, and isoneoswertiol) have been established by spectroscopic analysis and chemical transformation data. The presence of 2-<I>epi</I>-isoneoswertiol, which was named neoswertiol, was detected by GC/MS. This is the first time that the 2,8-dioxabicyclo[3.3.1]nonane skeleton has been encountered in natural products.
- 公益社団法人 日本化学会の論文
著者
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NAOKI Hideo
Suntory Institute for Bioorganic Research
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Nakagawa Yoshiko
Suntory Institute For Bioorganic Research (sunbor)
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Iwashita Takashi
Suntory Inst. For Bioorganic Res. Osaka Jpn
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SAKAI Tsutomu
Suntory Institute for Bioorganic Research
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Sakan Takeo
Suntory Institute for Bioorganic Research
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Nakagawa Yoshiko
Suntory Institute for Bioorganic Research
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