2H/4H-Chromenes-A Versatile Biologically Attractive Scaffold.

Area of Science:

• Medicinal Chemistry
• Organic Synthesis
• Pharmacology

Background:

• 2H/4H-chromene (2H/4H-ch) represents a significant class of heterocyclic compounds.
• These compounds possess a simple structure and exhibit a favorable safety profile with mild adverse effects.
• A variety of 2H/4H-ch analogs have been synthesized, demonstrating diverse biological activities through multiple mechanisms.

Purpose of the Study:

• To review diverse synthetic strategies and mechanisms for 2H/4H-chromene derivatives.
• To highlight the various biological profiles and structure-activity relationships (SAR) of bioactive 2H/4H-ch compounds.
• To provide a comprehensive resource for researchers in designing novel 2H/4H-ch analogs.

Main Methods:

• Literature review of synthetic routes for 2H/4H-chromene analogs.
• Analysis of reported biological activities and their underlying mechanisms.
• Compilation of structure-activity relationship (SAR) data for 2H/4H-chromene derivatives.

Main Results:

• Multiple synthetic pathways for 2H/4H-chromene derivatives have been identified.
• 2H/4H-chromene compounds exhibit a broad spectrum of biological activities, including anticancer, anticonvulsant, antimicrobial, anticholinesterase, antituberculosis, and antidiabetic effects.
• Direct assessment of parent 2H/4H-ch derivatives facilitates orderly SAR analysis.

Conclusions:

• 2H/4H-chromene scaffolds are promising for developing new therapeutic agents.
• Understanding synthetic strategies and SAR is crucial for optimizing the biological activity of 2H/4H-ch analogs.
• This review serves as a valuable guide for the scientific community in advancing 2H/4H-ch based drug discovery.