New terpenoids from Isodon sculponeata.
Two new ent-kaurane diterpene derivatives, sculponeatins N (1) and O (2), and a new A-ring contracted oleanane triterpenoid, sculponeatic acid (5), were isolated from the plant Isodon sculponeata. Their structures were elucidated on the basis of extensive spectroscopic analysis. This is the first report of natural occurrence of an A-ring contracted oleanane triterpenoid.
Wang
Fei
F
State Key Laboratory of Phytochemistry and Plant Resource in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China.
Li
Xiang-Mei
XM
Liu
Ji-Kai
JK
D037602:Isodon / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D035261:Plant Components, Aerial / Q000737:chemistry*; D010936:Plant Extracts / Q000737:chemistry*; D013729:Terpenes / Q000737:chemistry* / Q000302:isolation & purification
D010936:Plant Extracts; D013729:Terpenes; C540957:sculponeatic acid; C540959:sculponeatin N; C540958:sculponeatin O