Preperegrinine, a prefuranic labdane diterpene from Marrubium friwaldskyanum
✍ Scribed by Giuseppe Savona; Maurizio Bruno; Benjamín Rodríguez
- Publisher
- Elsevier Science
- Year
- 1984
- Tongue
- English
- Weight
- 217 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0031-9422
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## Abstract Marrusidins A (**1**) and B (**2**), two new labdane‐type diterpenes, were isolated from the CHCl~3~‐soluble subfraction of __Marrubium anisodon__, along with polyodonine. Their structures were assigned with the aid of ^1^H‐ and ^13^C‐NMR spectra and by COSY, HMQC, NOESY, and HMBC exper