𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Total synthesis of the ionophore antibiotic X-206. Studies relevant to the stereoselective synthesis of the C(17)–C(26) synthon.

✍ Scribed by David A. Evans; Steven L. Bender


Publisher
Elsevier Science
Year
1986
Tongue
French
Weight
262 KB
Volume
27
Category
Article
ISSN
0040-4039

No coin nor oath required. For personal study only.

✦ Synopsis


A stereoselective synthesis of the keto-aldehyde 4, which embodies the structural features of the C(17)-C(26) section of the polyether X-206, is described.

Despite recent advances in asymmetric synthesis, the stereochemically complex polyether antibiotics remain as challenging targets for total synthesis. 1 Among the diverse members of this class of substances, X-2O62 merits special attention as a consequence of its general level of architectural complexity.


📜 SIMILAR VOLUMES


Total synthesis of the ionophore antibio
✍ David A. Evans; Robert L. Dow 📂 Article 📅 1986 🏛 Elsevier Science 🌐 French ⚖ 214 KB

Asymmetric synthesis of the synthons 1 and 3 are described. Absolute stereochemical reiationships in these intermediates have been established via chiral enolate and directed hydrogenation processes. From the standpoint of chemical synthesis, the polyether antibiotics present a formidable chal-

Studies directed toward the synthesis of
✍ David A. Evans; Richard P. Polniaszek 📂 Article 📅 1986 🏛 Elsevier Science 🌐 French ⚖ 252 KB

The asymmetric synthesis of the Cl-Cy ferensimycin synthon 3 is described. The absolute stereochemrcal relationships in this target structure were established through chn-al enolate methodology. As part of an ongoing effort to develop asymmetric carbon-carbon bond-forming reactions in the context of