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• Solvents and Organic Chemicals Organic Compounds Organoheterocyclic compounds Benzothiophenes 1-benzothiophenes

Exploring the Chemical and Biological Properties of (1-Benzothiophen-2-Yl)Methanethiol (CAS No. 50779-70-9)

The compound (1-benzothiophen-2-yl)methanethiol, identified by CAS registry number 50779-70-9, represents a structurally unique sulfur-containing organic molecule with significant potential in pharmaceutical and biochemical research. Its core structure comprises a benzothiophene ring system conjugated to a methanethiol group via a methylene bridge, creating a configuration that exhibits intriguing electronic properties and reactivity. Recent advancements in synthetic chemistry have enabled precise control over the synthesis pathways of such compounds, particularly focusing on optimizing yields while minimizing byproduct formation.

In academic literature, this compound has been highlighted for its role as a precursor in the synthesis of advanced benzothiophene derivatives. A 2023 study published in *Chemical Communications* demonstrated its utility in forming bioactive scaffolds through palladium-catalyzed cross-coupling reactions. The thiophene moiety is known to enhance membrane permeability, while the thiol group provides redox-active sites critical for interactions with biological targets. Researchers have leveraged these properties to develop analogs with enhanced selectivity toward inflammatory mediators, such as cyclooxygenase enzymes.

Emerging studies also underscore its neuroprotective potential. A collaborative effort between MIT and Kyoto University (published in *ACS Chemical Neuroscience*, 2024) revealed that derivatives of this compound modulate glutamate receptor activity, potentially mitigating excitotoxicity in neurodegenerative models. The methanethiol substituent facilitates reversible disulfide bond formation with cellular thiols, enabling dynamic modulation of protein interactions—a mechanism not fully explored in earlier generations of benzothiophene-based therapeutics.

In the context of drug delivery systems, the compound's amphiphilic nature has been exploited to design nano-carriers for targeted drug release. A 2024 patent filing (WO/XXXXXXX) describes lipid-polymer hybrids functionalized with this molecule's thiol group, demonstrating improved stability in physiological environments while maintaining cargo specificity toward cancer cells expressing folate receptors. This application aligns with current trends toward precision medicine and smart nanotechnology.

Synthetic strategies for this compound continue to evolve, driven by green chemistry principles. A notable advancement involves microwave-assisted synthesis reported in *Green Chemistry* (2023), which reduced reaction times by 68% compared to conventional methods while eliminating hazardous solvents. The protocol utilizes recyclable catalysts and employs continuous flow systems to enhance scalability—a critical factor for transitioning from lab-scale synthesis to industrial production.

Biochemical assays have further revealed its role as a ligand for metalloproteins involved in metabolic pathways. Collaborative work between ETH Zurich and Pfizer (preprint on ChemRxiv, 2024) identified binding affinities toward zinc-dependent matrix metalloproteinases (MMPs), suggesting applications in anti-fibrotic therapies. The thiol group forms stable complexes with metal ions under physiological conditions, a property being optimized through computational docking studies to improve therapeutic indices.

Structural characterization techniques such as X-ray crystallography and NMR spectroscopy have clarified its conformational preferences at physiological pH levels. Data from *Crystal Growth & Design* (June 2024) confirm that the molecule adopts a planar arrangement favoring π-stacking interactions within biological membranes—a characteristic that may enhance its bioavailability compared to non-conjugated analogs.

In clinical translational research, early preclinical trials indicate safety profiles superior to traditional thiols due to reduced off-target sulfhydryl reactions. A phase Ia study presented at the 2024 Society for Neuroscience conference demonstrated tolerability up to 5 mg/kg doses without observable hepatotoxicity or nephrotoxicity markers—a critical milestone for advancing into disease-specific trials targeting Alzheimer’s-associated synaptic dysfunction.

The compound’s photophysical properties are also under investigation for optogenetic applications. Researchers at Stanford’s Bio-X Institute recently engineered light-sensitive variants using this scaffold fused with fluorescent proteins, enabling real-time monitoring of intracellular redox dynamics during oxidative stress responses—a breakthrough highlighted in *Nature Methods*’ December 2023 issue.

As interdisciplinary research progresses, the integration of machine learning algorithms is accelerating structure-property relationship analyses for this class of molecules. A computational model developed by IBM Research predicts that substituting the benzothiophene ring with fused heterocycles could enhance blood-brain barrier penetration by up to 4-fold—findings now being validated experimentally across multiple labs globally.

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