𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Enantiospecific total synthesis of the enantiomer of the indole alkaloid intermediate macroline

✍ Scribed by Xiaoxiang Liu; Chunchun Zhang; Xuebin Liao; James M. Cook


Publisher
Elsevier Science
Year
2002
Tongue
French
Weight
172 KB
Volume
43
Category
Article
ISSN
0040-4039

No coin nor oath required. For personal study only.

✦ Synopsis


The total synthesis of the enantiomer 3En of macroline 3 was completed (from L-tryptophan methyl ester 6) in an overall yield of 12.3% (11 isolated intermediates). The corresponding macroline equivalent 18 was prepared in 14.3% yield. This work provides, for the first time, an opportunity to synthesize mismatched bisindole alkaloids for studies on the mechanism of action of Alstonia antimalarial alkaloids at the receptor level.


πŸ“œ SIMILAR VOLUMES


Enantiospecific total synthesis of the e
✍ Xiaoxiang Liu; Tao Wang; Qingge Xu; Chunrong Ma; James M Cook πŸ“‚ Article πŸ“… 2000 πŸ› Elsevier Science 🌐 French βš– 189 KB

The enantiomer of anisine has been synthesized (from l-tryptophan) with 100% diastereoselectivity via the asymmetric PictetΒ±Spengler reaction coupled with a Pd 0 (enolate mediated) coupling process. This enantiomer has also been converted into a key intermediate which provides a route to the enantio

Total Synthesis of the Indole Alkaloid V
✍ Priv.-Doz. Dr. Dietrich Spitzner; Prof. Dr. Ernest Wenkert πŸ“‚ Article πŸ“… 1984 πŸ› John Wiley and Sons 🌐 English βš– 213 KB πŸ‘ 2 views

The tetrahedrane framework with R=tBu and the octabisvalene framework with R = CH3 presumably form because of steric reasons. Whereas the hydrocarbon 2 is highly strained, the arrangement in 1 is largely strain-free, based on the intermolecular contact distances. With other residues R the occurrenc