New Sesquiterpene Lactones and Other Constituents fromCentaurea paui

✍ Scribed by Cardona, Luz ;García, Begoña ;Muñoz, M. Carmen ;Navarro, Francisca I. ;Pedro, José R.

• Publisher: John Wiley and Sons
• Year: 1997
• Tongue: English
• Weight: 630 KB
• Volume: 1997
• Category: Article
• ISSN: 0947-3440
• DOI: 10.1002/jlac.199719970313

✦ Synopsis

Abstract

Aerial parts of Centaurea paui afforded, in addition to several known sesquiterpene lactones, the two new elemanolides 2–4, the new elemane derivative 5 as well as the five new heliangolides 14–18. Their structures were elucidated by spectroscopic methods, especially high‐field NMR spectroscopy. The structure of the heliangolide 12 previously isolated from this plant, has been confirmed by X‐ray diffraction.