Lanostane Triterpenoids from the Stems of Schisandra glaucescens

ArticleinPlanta Medica 78(5):472-9 · January 2012with9 Reads
Impact Factor: 2.15 · DOI: 10.1055/s-0031-1298214 · Source: PubMed

    Abstract

    Ten new triterpenoids, schiglausins A-J (1-10), as well as four known compounds, were isolated from the stems of Schisandra glaucescens. Their structures were elucidated on the basis of spectroscopic methods, including extensive NMR spectra and CD experiment. Compound 8 was determined to be a norlanostane triterpenoid. The crystal structure of compound 1 has been determined using single-crystal X-ray analysis while its absolute configuration was assigned on the basis of the CD spectrum. All isolates were tested for their FXR agonistic and antagonistic effects.