Five new labdane diterpene oxides from Eupatorium jhanii
✍ Scribed by Antonio G. González; José M. Arteaga; José L. Bretón; Braulio M. Fraga
- Publisher
- Elsevier Science
- Year
- 1977
- Tongue
- English
- Weight
- 510 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0031-9422
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Our recent studies's2 on the constituents of the tropical plant Leonotis nepetaefolia R. Br (Labiatae) have resulted in the isolation and structural elucidation of a number of new labdane ditkrpenes of which nepetaefolin (I) is the most abundant. This comunication reports the isolation of an additio
Four new labdane diterpenes, 1-4, with an unusual oxidation pattern have been isolated from the marine pulmonate Trimusculus peruvianus. The structure and stereochemistry of these compounds were determined by spectroscopic data and chemical transformations. The absolute stereochemistry of 4 was assi