Abstract
Five new ent-kauranoids, xindongnins C-G (1-5), together with five known ones, xindongnins A and B (6 and 7), melissoidesin G (8), dawoensin A (9), and glabcensin V (10), were isolated from the leaves of Isodon rubescens var. rubescens, and structurally elucidated. Compounds 1, 4, and 6-10 showed inhibitory effects against human tumor K562 cells with IC50 values ranging from 0.3 to 7.3 μg/mL. The structure of 6 was revised on the basis of its 2D-NMR spectral data.
| Original language | English |
|---|---|
| Pages (from-to) | 269-272 |
| Number of pages | 4 |
| Journal | Planta Medica |
| Volume | 70 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - Mar 2004 |