The Role of Coumarins in Drug Discovery: Pharmacological Insights andStructural Innovations

Introduction: Coumarins are significant oxygen-containing heterocycles in both nature and industry because of their 1,2-benzopyrone moiety. The chemicals are widely distributed in bacteria, fungi, and plants. Researchers are fascinated by the numerous biological roles they play despite their small size. The significance of coumarins for current drug discovery is illustrated by this paper, which investigates their wide-ranging pharmacological effects, structural diversity, method of synthesis, and Structure-Activity Relationships (SAR). Methods: An extensive literature review was conducted using SciFinder, PubMed, and Google Scholar, focusing on coumarin, structural alterations, SAR, biological activity, and medicinal uses. Peer-reviewed studies on pharmacological and structural aspects of coumarin derivatives were included. Studies without biological or chemical data were excluded. The literature was filtered using titles, abstracts, and full texts, and relevant data were qualitatively analyzed to highlight significant findings about coumarin derivatives and their potential therapeutic applications. Results: Coumarin scaffolds have gained popularity in medicinal chemistry due to their diverse biological activities. Coumarin derivatives influence cell death and growth, thereby facilitating the development of anticancer drugs. Through synthetic modifications, coumarins can become antifungal, antiviral, and antibacterial agents. Discussion: Coumarin derivatives' structural versatility and flexibility enable them to have diverse pharmacological effects. SAR studies elucidate the impact of specific modifications on the therapeutic potential, particularly in antibacterial and anticancer applications. In vitro results are promising, but clinical translation is lacking. Better toxicity profiles and in vivo investigations are needed. Multidisciplinary drug development research is needed to maximize their potential. Conclusion: This review paper addresses medicinal chemistry and drug development with natural coumarins. These compounds appear therapeutic due to their wide-ranging biological effects and structural flexibility. SAR analysis and synthetic chemistry are currently employed in medicine to address malignant and infectious diseases.