𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Lapidilectine A and lapidilectine B, two new alkaloids from Kopsia lapidilecta

✍ Scribed by Khalijah Awang; Thierry Sévenet; A. Hamid; A. Hadi; Bruno David; Mary Païs


Publisher
Elsevier Science
Year
1992
Tongue
French
Weight
271 KB
Volume
33
Category
Article
ISSN
0040-4039

No coin nor oath required. For personal study only.

✦ Synopsis


Bark and leaves MKopsia lapidilecta Van der Slmen were extrackd Two MY in&le alkaloids were aforded : lapidilec~inc A I (bark) and lapidilcctine B 2 (leaves). Both possess a novel skeleton with ajive membered wuaturated rbtg.

The swuctures of these alMoids wre elucidated especially by 20 NMR analysis.

Plants of the genus Kopsia are known to contain alkaloids possessing peculiar indole skeletons. In


📜 SIMILAR VOLUMES


Two novel indole alkaloids, Kopsiyunnani
✍ Yuqiu Wu; Mariko Kitajima; Noriyuki Kogure; Rongping Zhang; Hiromitsu Takayama 📂 Article 📅 2008 🏛 Elsevier Science 🌐 French ⚖ 200 KB

Two novel indole alkaloids having unusual skeletons were isolated from the aerial part of Yunnan Kopsia arborea. Kopsiyunnanine A (1) is a new class of bisindole alkaloid composed of vallesiachotamine (modified Corynanthe-type) and Aspidospermatan-type alkaloids. Kopsiyunnanine B ( 2) is a new Coryn

Terengganensines A and B, dihydroeburnan
✍ Shasya Uzir; Ali M. Mustapha; A.Hamid A. Hadi; Khalijah Awang; Christophe Wiart; 📂 Article 📅 1997 🏛 Elsevier Science 🌐 French ⚖ 186 KB

Five known indole alkaloids, (+)-quebrachamine, (-)-eburnamine, (+)-isoeburnamine, (-)eburnaminol and (+)-larutensine, and two new alkaloids, terengganensines A 1 and B 2, possessing a unique dihydroeburnane skeleton were isolated from the bark of Kopsia terengganensis. The structures of the new com