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• Solvents and Organic Chemicals Organic Compounds Benzenoids Benzene and substituted derivatives Benzenesulfonyl compounds Benzenesulfonyl halides

Research Briefing on Benzenesulfonyl chloride, 2-cyano-3-methoxy- (CAS: 850154-04-0) in Chemical Biology and Pharmaceutical Applications

Benzenesulfonyl chloride, 2-cyano-3-methoxy- (CAS: 850154-04-0) is a specialized chemical compound that has garnered significant attention in recent years due to its versatile applications in chemical biology and pharmaceutical research. This sulfonyl chloride derivative, characterized by its cyano and methoxy functional groups, serves as a critical intermediate in the synthesis of bioactive molecules, including kinase inhibitors and antimicrobial agents. Recent studies have explored its utility in targeted drug design and as a building block for complex heterocyclic systems.

A 2023 study published in the Journal of Medicinal Chemistry investigated the role of 850154-04-0 in the development of selective JAK3 inhibitors. The research team utilized this compound as a key precursor to synthesize a series of novel sulfonamide derivatives, which demonstrated potent inhibitory activity against JAK3 with IC50 values in the nanomolar range. Molecular docking studies revealed that the 2-cyano-3-methoxy substitution pattern contributed significantly to the binding affinity by forming hydrogen bonds with the kinase's hinge region.

In parallel, pharmaceutical applications of this compound have expanded into antimicrobial research. A recent patent (WO2023056421) describes its use in preparing sulfonylhydrazone derivatives with broad-spectrum activity against drug-resistant bacterial strains, including MRSA and ESBL-producing E. coli. The electron-withdrawing cyano group was found to enhance the compounds' membrane permeability, while the methoxy group improved metabolic stability.

From a synthetic chemistry perspective, advances in the preparation of 850154-04-0 have been reported. A 2024 Organic Process Research & Development article detailed an improved continuous flow synthesis method that achieves 92% yield with excellent purity (>99%), addressing previous challenges in large-scale production. This technological advancement is particularly significant given the compound's increasing demand in high-throughput screening libraries.

The safety profile of Benzenesulfonyl chloride, 2-cyano-3-methoxy- has been systematically evaluated in recent toxicological studies. While it maintains the characteristic reactivity of sulfonyl chlorides, the addition of the cyano and methoxy groups appears to reduce its acute toxicity compared to simpler benzenesulfonyl chloride derivatives, as evidenced by reduced skin irritation potential in OECD guideline tests.

Looking forward, research directions for this compound are expanding into new areas. Computational studies predict potential applications in covalent inhibitor design, leveraging the sulfonyl chloride moiety for targeted covalent binding to cysteine residues in disease-relevant proteins. Additionally, its photophysical properties are being investigated for potential use in bioimaging probes, taking advantage of the conjugated π-system created by the cyano and methoxy substituents.

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