Sesquiterpenes from the Rhizomes of<i>Ligularia dentata</i>Hara
作者:Keizo Naya、Tohru Okayama、Masaaki Fujiwara、Makoto Nakata、Tsutomu Ohtsuka、Seiko Kurio
DOI:10.1246/bcsj.63.2239
日期:1990.8
From the rhizomes of Ligularia dentata Hara two new compounds, a phenolic norsesquiterpene ligudentatol (2), and a eudesmanoid ligucyperonol (6), have been isolated in addition to the known caryophillene (1) and additional three phenolic norsesquiterpenes (3, 4, and 5). The structures and stereochemistries of 2 and 6 have been established by a combination of spectroscopic and chemical methods, and by correlation with known ligujapone (4) and (+)-α-cyperone (11), respectively.