New ent-abietane and ent-kaurane diterpenoids from Isodon rubescens

Chem Pharm Bull (Tokyo). 2013;61(1):90-5. doi: 10.1248/cpb.c12-00697.

Abstract

Five new ent-abietane diterpenoids, ent-abierubesins A-E (1-5), and two new ent-kauranoids, hubeirubesins A and B (6, 7), together with three known diterpenoids (8-10), were isolated from the aerial parts of Isodon rubescens. Their structures were identified by means of extensive spectroscopic analysis, and the absolute stereochemistry of 1 was determined by single-crystal X-ray diffraction experiment.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Crystallography, X-Ray
  • Diterpenes, Kaurane / chemistry*
  • Diterpenes, Kaurane / isolation & purification
  • Isodon / chemistry*
  • Models, Molecular
  • Plant Components, Aerial / chemistry*
  • Plant Extracts / chemistry*
  • Plant Extracts / isolation & purification

Substances

  • Diterpenes, Kaurane
  • Plant Extracts