Nepalensolide A, Novel Sesquiterpene Lactone from the Liverwort Frullania nepalensis. Compound Breaking the Samek Rule. A Study by NOE and X-Ray
- 1 November 1990
- journal article
- Published by Oxford University Press (OUP) in Chemistry Letters
- Vol. 19 (11) , 2115-2116
- https://doi.org/10.1246/cl.1990.2115
Abstract
The structure of a new sesquiterpene lactone, nepalensolide A, from the liverwort Frullania nepalensis has been determined by spectroscopic considerations and X-ray analysis. Since the compound does not obey the Samek rule, the conformation has to be considered when we use this rule.This publication has 3 references indexed in Scilit:
- Labdane type diterpenoids from the liverwort Frullania hamachilobaPhytochemistry, 1988
- On the validity of the "cis/trans" lactone rule for allylic coupling constants of the α-exomethylene protons in natural sesquiterpenic α-exomethylene γ-lactonesCollection of Czechoslovak Chemical Communications, 1978
- On terpenes. CCVIII. The structure of ivoxanthin, a sesquiterpenic lactone from Cyclachaena xanthifolia FRESEN.Collection of Czechoslovak Chemical Communications, 1970