Staminolactones A and B and norstaminol A: three highly oxygenated staminane-type diterpenes from Orthosiphon stamineus.
@article{Stampoulis1999StaminolactonesAA, title={Staminolactones A and B and norstaminol A: three highly oxygenated staminane-type diterpenes from Orthosiphon stamineus.}, author={P. Stampoulis and Y. Tezuka and A. Banskota and K. Trần and I. Saiki and S. Kadota}, journal={Organic letters}, year={1999}, volume={1 9}, pages={ 1367-70 } }
[formula: see text] Staminolactones A (1) and B (2) and norstaminol A (3), three highly oxygenated staminane-type diterpenes having mild cytotoxic activities against highly liver-metastatic colon 26-L5 carcinoma cells, were isolated from the aerial part of the Vietnamese medicinal plant Orthosiphon stamineus (Lamiaceae). Their structures were elucidated on the basis of the extensive spectral analyses.
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