Taraxacin, a new guaianolide from Taraxacum wallichii
Taraxacin, a new guaianolide from Taraxacum wallichii
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DOI：
10.1021/np990495
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发表时间：
2000-07-01
影响因子：
5.1
通讯作者：
Zahid, M
中科院分区：
文献类型：
--
作者：
Ahmad, VU;Yasmeen, S;Zahid, M
从蒲公英甲醇提取物的乙酸乙酯可溶部分中分离得到一种新的愈创木脂素，蒲公英素（1）和一种已知的倍半萜酮内酯（2）。1的结构通过NMR、MS和X-射线晶体学方法确定。2的~（13）C NMR数据也是首次报道。
A new guaianolide, taraxacin (1), and a known sesquiterpene ketolactone (2) have been isolated from an ethyl acetate-soluble part of a methanolic extract of Taraxacum wallichii. The structure of 1 was established using NMR, MS, and X-ray crystallographic methods. The C-13 NMR data of 2 is also being reported for the first time.