Natural dibenzo-α-pyrones and their bioactivities

Area of Science:

• Natural Products Chemistry
• Metabolomics
• Mycology

Background:

• Dibenzo-α-pyrones are metabolites from fungi, plants, and animal feces.
• They possess a wide range of biological activities, including cytotoxic, antioxidant, and antimicrobial effects.
• Over 53 dibenzo-α-pyrones have been identified.

Purpose of the Study:

• To review the occurrence and biosynthesis of dibenzo-α-pyrones.
• To summarize their diverse biological activities and functions.
• To discuss synthesis, production, and application considerations.

Main Methods:

• Literature review of scientific publications.
• Analysis of biosynthesis pathways (polyketide pathway, microbial metabolism).
• Compilation of reported biological activities and functions.

Main Results:

• Dibenzo-α-pyrones are biosynthesized via the polyketide pathway or metabolized from plant compounds.
• Reported activities include toxicity, phytotoxicity, cytotoxicity, antioxidant, antiallergic, antimicrobial, antinematodal, and acetylcholinesterase inhibition.
• A significant number of these compounds have been identified.

Conclusions:

• Dibenzo-α-pyrones represent a versatile class of natural products with broad biological relevance.
• Understanding their biosynthesis and activities is crucial for exploring their applications.
• Further research into synthesis and production methods is warranted.