Abstract
Three novel asymmetric ent-kaurane dimers xindongnins M-O (1-3) were isolated from Isodon rubescens var. rubescens. Their structures were elucidated by spectroscopic methods including 2D NMR analysis. The relative stereochemistry of 1 was determined by single crystal X-ray diffraction, which also confirmed the unique linkage of a single carbon-carbon bond between the two subunits of this dimer. A biogenetic pathway was proposed for the formation of these dimers.
Original language | English |
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Pages (from-to) | 2833-2837 |
Number of pages | 5 |
Journal | Tetrahedron Letters |
Volume | 45 |
Issue number | 13 |
DOIs | |
Publication status | Published - 22 Mar 2004 |
Scopus Subject Areas
- Biochemistry
- Drug Discovery
- Organic Chemistry
User-Defined Keywords
- ent-Kaurane dimer
- Isodon rubescens var. rubescens
- Xindongnins M-O