: Includes nonribosomal peptides and sugar-decorated molecules that often function as potent antibiotics or toxins. 2. Biosynthesis and Biological Mechanisms
: Polyphenolic compounds like curcumin and quercetin, known for their significant antioxidant, anti-inflammatory, and cardioprotective properties.
Bioactive natural products represent a diverse array of chemical scaffolds evolved over millions of years to perform specific biological functions. These compounds, primarily secondary metabolites, serve as a cornerstone for modern drug discovery, contributing to approximately 24% of all approved drugs. 1. Classification and Chemical Diversity Bioactive Natural Products: Chemistry and Biology
: The largest group of natural products, built from five-carbon isoprene units. Examples include the antimalarial agent artemisinin.
: Unlike many synthetic drugs, natural products often act through synergistic, multi-target mechanisms, influencing redox dynamics, membrane architecture, and signaling pathways simultaneously. 3. Modern Discovery Techniques Bioactive natural products represent a diverse array of
Natural products are categorized into major classes based on their chemical structures and biosynthetic origins:
: Nitrogen-containing heterocyclic compounds often derived from amino acids. They frequently exhibit potent pharmacological effects, such as the analgesic properties of morphine. Classification and Chemical Diversity : The largest group
: Assembled from acetate and malonate units via "assembly line" enzymes, producing complex structures like erythromycin.