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  Long Deng,Qian Zou,Biao Liu,Wenhui Ye,Chengfei Zhuo,Li Chen,Ze-Yuan Deng,Ya-Wei Fan,Jing Li Food Funct., 2018,9, 4234-4245
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• Solvents and Organic Chemicals Organic Compounds Organoheterocyclic compounds Pyridines and derivatives Pyridinecarboxamides
• Solvents and Organic Chemicals Organic Compounds Organoheterocyclic compounds Pyridines and derivatives Pyridinecarboxylic acids and derivatives Pyridinecarboxamides

Professional Introduction to 3,6-dichloropyridine-2-carboxamide (CAS No. 1532-25-8)

3,6-dichloropyridine-2-carboxamide, with the chemical formula C?H?Cl?NO?, is a significant intermediate in modern pharmaceutical and agrochemical synthesis. This compound, identified by its CAS number 1532-25-8, has garnered attention due to its versatile reactivity and role in the development of novel bioactive molecules. Its structural features—a pyridine core substituted with chlorine atoms at the 3 and 6 positions and an amide functional group at the 2 position—make it a valuable building block for further chemical modifications.

The utility of 3,6-dichloropyridine-2-carboxamide stems from its ability to participate in a wide range of chemical reactions, including nucleophilic substitution, condensation, and coupling reactions. These properties have enabled its incorporation into diverse synthetic pathways, particularly in the design of pharmacologically active compounds. Recent advancements in medicinal chemistry have highlighted its importance in the synthesis of small-molecule inhibitors targeting various biological pathways.

In the realm of drug discovery, 3,6-dichloropyridine-2-carboxamide has been employed as a key precursor in the development of therapeutic agents. For instance, derivatives of this compound have shown promise as kinase inhibitors, particularly those targeting tyrosine kinases involved in cancer metabolism. The chlorine substituents enhance electrophilicity, facilitating interactions with nucleophilic residues in target proteins. Furthermore, the amide group provides a handle for further derivatization, allowing chemists to fine-tune physicochemical properties such as solubility and metabolic stability.

Recent studies have demonstrated the role of 3,6-dichloropyridine-2-carboxamide in the synthesis of antiviral agents. Researchers have leveraged its scaffold to develop compounds with inhibitory activity against viral proteases and polymerases. The structural motif is particularly relevant in designing molecules that disrupt viral replication cycles without significant off-target effects. This has been achieved by optimizing substituents around the pyridine ring to enhance binding affinity and selectivity.

The agrochemical industry has also recognized the value of 3,6-dichloropyridine-2-carboxamide as a precursor for novel pesticides and herbicides. Its structural framework allows for the creation of compounds that interact with specific enzymatic targets in pests or weeds, offering an effective means of crop protection. Innovations in green chemistry have prompted investigations into more sustainable synthetic routes for this intermediate, emphasizing atom economy and reduced environmental impact.

From a synthetic chemistry perspective, 3,6-dichloropyridine-2-carboxamide exemplifies the importance of heterocyclic compounds in medicinal and agrochemical research. Its reactivity profile enables diverse functionalization strategies, making it a cornerstone in multi-step syntheses. Advances in catalytic methods have further streamlined its preparation and modification, reducing reliance on harsh conditions or hazardous reagents.

The future prospects for 3,6-dichloropyridine-2-carboxamide are promising, with ongoing research exploring its potential in emerging therapeutic areas such as immunomodulation and neurodegenerative disease treatment. Collaborative efforts between academia and industry are driving innovation by combining computational modeling with experimental validation to accelerate lead optimization. As computational techniques evolve, virtual screening approaches are being employed to identify novel derivatives of this compound with enhanced biological activity.

In conclusion,3,6-dichloropyridine-2-carboxamide (CAS No. 1532-25-8) remains a pivotal compound in synthetic chemistry due to its versatility and applicability across multiple domains. Its role in drug discovery underscores its significance as a scaffold for developing next-generation therapeutics. As research progresses，this compound will continue to contribute to advancements in pharmaceuticals，agrochemicals，and beyond，highlighting its enduring relevance in modern science.

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