𝔖 Bobbio Scriptorium
✦   LIBER   ✦

(−)-Alangimarckine: Synthesis and absolute configuration of an alangium alkaloid

✍ Scribed by Tozo Fujii; Hiroshi Kogen; Masashi Ohba

Publisher
Elsevier Science
Year
1978
Tongue
French
Weight
237 KB
Volume
19
Category
Article
ISSN
0040-4039

No coin nor oath required. For personal study only.

✦ Synopsis

A recent communication' from this laboratory has revealed that the structure and stereochemistry of alangimarckine, isolated from Alan&urn lamarckii Thw. (family Alangiaceae),2 is expressed in terms of Formula I or its mirror image. Ankorine (III) 2-5 and alangicine (IV)6-8 are also among the

📜 SIMILAR VOLUMES

Total synthesis of the coccinellid alkal
Total synthesis of the coccinellid alkaloid (−)-adalinine and the assignment of its absolute configuration
✍ Naoki Yamazaki; Toshimasa Ito; Chihiro Kibayashi 📂 Article 📅 1999 🏛 Elsevier Science 🌐 French ⚖ 238 KB

The first asymmetric total synthesis of a new coccinellid alkaloid (-)-adalinine has been achieved, based on the construction of a 2-piperidone framework with an asymmetric quaternary center at the C-6 position, which was performed by Lewis acid-induced allylation of the cyclic N-acyl-N,O-acetal inc

Synthesis of Bioactive 2-Aza-Analogues o
Synthesis of Bioactive 2-Aza-Analogues of Ipecac and Alangium Alkaloids
✍ Michael Kölzer; Kerstin Weitzel; H. Ulrich Göringer; Eckhard Thines; Till Opatz 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 440 KB

Polycyclic alkaloids with potent eukaryotic cytotoxicity have been isolated from the tropical shrubs Cephaelis ipecacuanha and Alangium lamarckii. [1,2] Their skeleton features an invariable benzoquinolizidine core, which is linked to a bi-or tricyclic unit by a methylene bridge (Figure 1).

Synthesis and Absolute Configuration of
Synthesis and Absolute Configuration of (−)-Normalindine
✍ Masashi Ohba; Hiroyuki Kubo; Tozo Fujii; Hiroyuki Ishibashi; Melvyn V. Sargent; 📂 Article 📅 1997 🏛 Elsevier Science 🌐 French ⚖ 625 KB

Thefnt chiralsynthesisof the SoychnosandOpldorrhiza atkatoid(-)-normalindinehas been accomplishedthrougha routestartingfromL-atanine methylesterandexploitingintramolecular oxazobolefin Diels-Ahlerreaction.As a reauktheabsolutestereochemistry of nonnatindine hasken lk.finedasrqneaentedbyfords (-)-1.