The isolation and structure elucidation of new cassane diterpene-acids from Caesalpinia crista L. (Fabaceae), and review on the nomenclature of some Caesalpinia species.
The isolation and structure elucidation of new cassane diterpene-acids from Caesalpinia crista L. (Fabaceae), and review on the nomenclature of some Caesalpinia species.
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DOI：
10.1248/cpb.53.717
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发表时间：
2005-06
影响因子：
1.7
通讯作者：
T. Kinoshita;Yasuhiro Haga;Shintaro Narimatsu;M. Shimada;Y. Goda
中科院分区：
文献类型：
--
作者：
T. Kinoshita;Yasuhiro Haga;Shintaro Narimatsu;M. Shimada;Y. Goda
从豆科植物冠状云实（Caesalpiniacrista）的叶片中分离得到两个新的卡桑双萜酸类化合物--新云实碱（Neocaesalpins H）和新云实碱（Neocaesalpins I），并根据光谱和化学数据推测了它们的结构。这些化合物的特征在于具有自然界中罕见的α，β-丁烯二醇半缩醛环。从植物化学的角度来看，5-羟基基团的缺乏也将新云实碱H和I与其他云实属物种中存在的卡桑烷二萜（云实碱）区分开来。同时对3种云实属植物的命名进行了评述，发现部分云实属植物的命名不当，应改用有效名称。
New cassane diterpene-acids, neocaesalpins H and I, were isolated from the leaves of Caesalpinia crista (Fabaceae), and their structures were deduced on the basis of the spectroscopic and chemical basis. These compounds were characterized as having an alpha,beta-butenolide hemiacetal ring that is rare in nature. The lacking of 5-hydroxy group also distinguished neocaesalpins H and I from cassane diterpenes (caesalpins) occurring in other Caesalpinia species from the phytochemical viewpoint. The nomenclature of three Caesalpinia species was also reviewed, and it was found that some species belonging to the genus Caesalpinia are improperly named and should be changed to valid names.