Divergent total synthesis of indolizidine-, quinolizidine-, and decahydroquinoline-type poison-frog alkaloids

Takuya Okada*, Naoki Toyooka

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

Abstract

The skin extracts of Neotropical poison-frogs contain a variety of lipophilic alkaloids, and over 800 alkaloids representing >20 structural classes have been isolated or detected to date. Pumiliotoxins (PTXs) and decahydroquinolines (DHQs) are the major classes of poison-frog alkaloids, and their structural diversity and pharmacological activity have stimulated considerable interest in their chemical synthesis by several groups. However, no divergent synthesis of PTXs and DHQs have been reported so far. We have achieved the divergent total synthesis of these alkaloids and were able to establish that chiral building blocks (2R,3S)-ethyl 1-allyl-3-hydroxy-6-oxopiperidine-2-carboxylate (−)-1 and (2R,6S)-1-benzyl 2-methyl 6-(acetoxymethyl)piperidine-1,2-dicarboxylate 75 are extremely useful and versatile for the synthesis of natural products, especially indolizidine, quinolizidine, and decahydroquinoline alkaloids.

Original languageEnglish
Title of host publicationAdvances in Heterocyclic Chemistry
EditorsEric F.V. Scriven, Christopher A. Ramsden
PublisherAcademic Press Inc.
Pages49-88
Number of pages40
ISBN (Print)9780443297427
DOIs
StatePublished - 2024/01

Publication series

NameAdvances in Heterocyclic Chemistry
Volume144
ISSN (Print)0065-2725

Keywords

  • Allylic strain
  • Chiral building block
  • Decahydroquinoline
  • Divergent total synthesis
  • Heterocycle
  • Indolizidine
  • Poison-frog alkaloid
  • Pumiliotoxin
  • Quinolizidine
  • Stereoelectronic effect

ASJC Scopus subject areas

  • Biochemistry
  • Organic Chemistry
  • Polymers and Plastics

Fingerprint

Dive into the research topics of 'Divergent total synthesis of indolizidine-, quinolizidine-, and decahydroquinoline-type poison-frog alkaloids'. Together they form a unique fingerprint.

Cite this