Indolizidine and quinolizidine alkaloids

Area of Science:

• Natural Product Chemistry
• Medicinal Chemistry
• Pharmacognosy

Background:

• Indolizidine and quinolizidine alkaloids are nitrogen-containing heterocyclic compounds found in various natural sources.
• These alkaloids exhibit a wide range of biological activities, making them of significant interest in medicinal chemistry.
• Previous reviews have covered specific classes or sources, but a comprehensive overview of recent literature is needed.

Purpose of the Study:

• To provide a comprehensive review of the isolation, structure determination, synthesis, and biological activity of indolizidine and quinolizidine alkaloids.
• To cover alkaloids from microbial, plant, animal, and marine sources.
• To consolidate literature published between July 2000 and June 2001.

Main Methods:

• Literature search and review of scientific publications.
• Compilation of data on identified alkaloids, their sources, and properties.
• Analysis of reported synthetic routes and biological activities.

Main Results:

• The review encompasses a broad spectrum of indolizidine and quinolizidine alkaloids, including slaframine, hydroxylated variants, and those from ants, amphibians, and marine organisms.
• Specific genera and families like Prosopis, Streptomyces, Nuphar, and Lythraceae are discussed.
• The review covers phenanthroindolizidines, lupin alkaloids, and alkaloids from sponges, tunicates, and coccinellid beetles.

Conclusions:

• The diverse origins and significant biological activities of indolizidine and quinolizidine alkaloids underscore their importance in natural product research.
• Continued investigation into these alkaloid classes is crucial for discovering new therapeutic agents.
• This review serves as a valuable resource for researchers in natural product chemistry and medicinal chemistry.