84093-57-2Relevant academic research and scientific papers
ISOLATION AND STRUCTURE OF NEW PSEUDOGUAIANOLIDES,4-EPIPULCHELLIN AND 4-EPINEOPULCHELLIN FROM GAILLARDIA PULCHELLA
Harimaya, Kenzo,Hori, Hitoshi,Ohkura, Tamiko,Kawamata, Takeshi,Gao, Ji-Fu,Inayama, Seiichi
, p. 83 - 88 (2007/10/02)
The structure of 4-epipulchellin (1a) and 4-epineopulchellin (1b), new pseudoguaianolide sesquiterpene lactones isolated from Gaillarda pulchella, was determined on the basis of spectroscopic data and chemical transformations from pulchellin (2a) and neopulchellin (2b) into 1a and 1b, respectively.
ZWEI NEUE PSEUDOGUAIANOLIDE AUS DEN BLUETEN VON ARNICA CHAMISSONIS LESS. SUBSP. GENUINA MAGUIRE
Willuhn, G.,Pretzsch, G.,Wendisch, D
, p. 773 - 776 (2007/10/02)
The predominant sesquiterpene lactones from the flowers of Arnica Chamissonis Less. subsp. genuina Maguire, which are used for medical purposes, were isolated.They are shown to be new compounds of the pseudoguaianolide type, which are named Chamissonolide (1) and 6-Desoxychamissonolide (2).Their structure has been established by UV, IR, MS, (1)H-NMR and (13)C-NMR.
