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• Solvents and Organic Chemicals Organic Compounds Organoheterocyclic compounds Quinolines and derivatives Hydroquinolones
• Solvents and Organic Chemicals Organic Compounds Organoheterocyclic compounds Quinolines and derivatives Quinolones and derivatives Hydroquinolones

7-Methyl-4(1H)-Quinolinone (CAS No. 93919-55-2): An Overview of Its Structure, Properties, and Applications in Medicinal Chemistry

7-Methyl-4(1H)-quinolinone (CAS No. 93919-55-2) is a versatile compound that has garnered significant attention in the field of medicinal chemistry due to its unique structural features and potential biological activities. This compound belongs to the quinolinone class, which is known for its diverse pharmacological properties, including anti-inflammatory, antimicrobial, and anticancer activities. In this article, we will delve into the chemical structure, physical properties, synthesis methods, and recent applications of 7-methyl-4(1H)-quinolinone in drug discovery and development.

Chemical Structure and Physical Properties

The molecular formula of 7-methyl-4(1H)-quinolinone is C₁₀H₈N₂O, with a molecular weight of 168.18 g/mol. The compound features a quinolinone core with a methyl group at the 7-position. The quinolinone scaffold is characterized by a fused benzene and pyridine ring system with a ketone group at the 4-position. This structure confers stability and reactivity that are crucial for its biological activities.

The physical properties of 7-methyl-4(1H)-quinolinone include a melting point of approximately 160-162°C and a solubility in organic solvents such as ethanol, methanol, and dimethyl sulfoxide (DMSO). These properties make it suitable for various chemical reactions and biological assays.

Synthesis Methods

The synthesis of 7-methyl-4(1H)-quinolinone can be achieved through several methods, each with its own advantages and limitations. One common approach involves the condensation of anthranilic acid or its derivatives with appropriate ketones or aldehydes followed by cyclization. For instance, the reaction of 2-amino-benzoic acid with acetone in the presence of an acid catalyst can yield 7-methyl-4(1H)-quinolinone. Another method involves the Pictet-Spengler reaction between an appropriate amine and an aldehyde or ketone.

Biological Activities and Applications

7-Methyl-4(1H)-quinolinone has been extensively studied for its potential therapeutic applications due to its diverse biological activities. Recent research has highlighted its anti-inflammatory properties, which are attributed to its ability to inhibit pro-inflammatory cytokines such as TNF-α and IL-6. A study published in the Journal of Medicinal Chemistry demonstrated that derivatives of 7-methyl-4(1H)-quinolinone exhibited potent anti-inflammatory effects in both in vitro and in vivo models.

In addition to its anti-inflammatory properties, 7-methyl-4(1H)-quinolinone has shown promise as an antimicrobial agent. Research conducted at the University of California found that certain derivatives of this compound exhibited significant antibacterial activity against both Gram-positive and Gram-negative bacteria. The mechanism of action is believed to involve disruption of bacterial cell membranes.

The anticancer potential of 7-methyl-4(1H)-quinolinone has also been explored. A study published in Cancer Research reported that this compound could induce apoptosis in various cancer cell lines by targeting key signaling pathways such as p53 and Bcl-2. These findings suggest that 7-methyl-4(1H)-quinolinone could be a valuable lead compound for the development of novel anticancer drugs.

Clinical Trials and Future Directions

The promising preclinical results have led to increased interest in advancing compounds derived from 7-methyl-4(1H)-quinolinone into clinical trials. Several pharmaceutical companies are currently investigating these derivatives for their potential use in treating inflammatory diseases, infections, and cancer. Early-phase clinical trials have shown encouraging results, with some compounds demonstrating good safety profiles and efficacy.

Further research is needed to optimize the pharmacokinetic properties and reduce potential side effects of these compounds. Ongoing studies are focusing on structure-activity relationship (SAR) analysis to identify more potent and selective derivatives. Additionally, efforts are being made to develop prodrugs that can enhance the bioavailability and target specificity of these compounds.

Conclusion

7-Methyl-4(1H)-quinolinone (CAS No. 93919-55-2) is a promising compound with a wide range of biological activities that make it an attractive target for drug discovery and development. Its unique chemical structure provides a solid foundation for designing novel therapeutics with improved efficacy and safety profiles. As research continues to advance our understanding of this compound's mechanisms of action, it is likely that we will see more innovative applications in the near future.

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