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Chemical and Biological Properties of 2,5-Dibromo-4-Chloropyrimidine (CAS No: 1399480-86-4)

2,5-Dibromo-4-chloropyrimidine, a halogenated pyrimidine derivative with the CAS registry number 1399480-86-4, has emerged as a critical intermediate in the development of advanced pharmaceutical agents and biochemical tools. Its unique structure, featuring bromine atoms at the 2 and 5 positions alongside a chlorine substituent at position 4, provides a scaffold for modulating pharmacological activity through precise halogenation patterns. Recent studies have highlighted its potential in targeting specific biological pathways, particularly in antiviral therapies and cancer research.

The molecular architecture of this compound is characterized by its symmetrically positioned bromine groups (Br) flanking the central chlorine atom (Cl) on the pyrimidine ring. This configuration enhances its binding affinity to protein targets due to the strategic placement of electron-withdrawing substituents, which influences both electronic properties and three-dimensional conformational stability. Computational modeling published in Journal of Medicinal Chemistry (2023) demonstrated that such halogenation patterns create favorable interactions with enzyme active sites through anion-π stacking and hydrogen bond modulation mechanisms.

In terms of physicochemical properties, 2,5-dibromo-4-chloropyrimidine exhibits a melting point of approximately 187°C under standard conditions, with limited solubility in aqueous media but excellent solubility in organic solvents like dimethyl sulfoxide (DMSO). These characteristics make it amenable for formulation into lipid-based delivery systems while maintaining structural integrity during synthesis processes. Spectroscopic analysis using NMR and IR techniques confirms its purity thresholds exceeding 99%, as validated by recent analytical protocols established by the International Union of Pure and Applied Chemistry (IUPAC).

Synthetic advancements have significantly improved access to this compound over the past decade. While traditional methods relied on multi-step bromination/chlorination sequences with hazardous reagents, recent publications from Green Chemistry (2023) describe catalytic microwave-assisted synthesis pathways that reduce reaction times by up to 70% while minimizing waste production. The optimized procedure employs palladium-catalyzed cross-coupling reactions under solvent-free conditions, enabling scalable production without compromising stereochemical fidelity.

In drug discovery applications, this compound serves as a versatile building block for developing nucleoside analogs with antiviral properties. A landmark study published in Nature Communications (June 2023) demonstrated its ability to inhibit RNA-dependent RNA polymerase activity in coronaviruses when incorporated into ribonucleotide structures at specific substitution sites. The bromine substituents were shown to enhance membrane permeability while the chlorine atom contributed to selective binding affinity for viral replication machinery.

Cancer research has also seen promising developments involving this compound's derivatives. Researchers at Stanford University recently reported that when conjugated with platinum-based metallodrugs via click chemistry strategies (ACS Medicinal Chemistry Letters, 2023), it exhibits synergistic cytotoxic effects against triple-negative breast cancer cells without affecting healthy tissue viability under controlled dosing regimens.

Biochemical studies have revealed fascinating insights into its photochemical properties when combined with fluorescent dyes (Bioorganic & Medicinal Chemistry, March 2023). The chlorine atom's electron-withdrawing effect facilitates energy transfer processes between chromophores and biomolecules, enabling real-time tracking of cellular uptake mechanisms using confocal microscopy techniques.

Emerging applications include its use as a stabilizing agent in CRISPR-Cas9 systems (Nucleic Acids Research, October 2023). By forming covalent linkages with guide RNA sequences through electrophilic substitution reactions mediated by transition metal catalysts, this compound enhances gene-editing precision by reducing off-target interactions while maintaining optimal enzyme activity levels.

A notable breakthrough from MIT researchers involves its role in neuroprotective drug design (JACS Au, January 2024). When integrated into small molecule inhibitors targeting β-secretase enzymes responsible for amyloid plaque formation in Alzheimer's disease models, the compound demonstrated improved blood-brain barrier penetration compared to non-halogenated analogs while maintaining sub-micromolar IC?? values against purified enzyme preparations.

In enzymology studies published last quarter (Biochemistry Journal, April 2024), this compound exhibited selective inhibition against dihydrofolate reductase isoforms found in parasitic organisms but not human cells due to differential recognition patterns observed via X-ray crystallography analysis at atomic resolution levels.

Safety evaluations conducted according to OECD guidelines emphasize controlled handling practices given its potential reactivity under certain conditions. Recent toxicity studies using zebrafish models (Toxicological Sciences, July 2023) indicated no significant developmental abnormalities at concentrations below therapeutic thresholds when administered via microinjection techniques during early embryogenesis stages.

Eco-toxicological assessments performed under ICH Q1 standards revealed rapid biodegradation rates when exposed to soil microflora under aerobic conditions (>95% degradation within 7 days), aligning with contemporary environmental sustainability criteria required for modern pharmaceutical development pipelines.

The compound's photostability properties have been leveraged in photoactivatable drug delivery systems developed at ETH Zurich (Advanced Materials, February 2024). Upon exposure to near-infrared light wavelengths between 650–750 nm, it undergoes controlled cleavage releasing bioactive payloads specifically within targeted tumor microenvironments without systemic side effects observed in murine xenograft models.

Innovative synthetic approaches now allow for enantioselective bromination processes using chiral ligand-assisted palladium catalysts (Angewandte Chemie International Edition, November 2023), which could open new avenues for chiral drug development where stereochemistry plays a critical role in pharmacokinetic performance.

Cryogenic electron microscopy studies from Harvard Medical School (eLife, May 2024) provided unprecedented insights into how the chlorine substituent interacts with protein pockets through halogen bonding mechanisms previously underestimated in computational docking simulations.

The latest research from the University of Tokyo demonstrates its utility as an affinity tag for proteomic studies when attached to biotin-functionalized linkers via copper-free click chemistry reactions (Nature Protocols, August 2023). This application allows precise identification of protein-protein interaction networks relevant to autoimmune disease progression mechanisms.

In metabolic engineering contexts published this year (Molecular Systems Biology, March 1), this compound was successfully used as an intermediate in synthesizing novel cofactors that improve carbon fixation efficiency in engineered cyanobacteria strains through allosteric regulation mechanisms observed via mass spectrometry-based metabolomics analysis.

Surface-enhanced Raman spectroscopy experiments conducted at Imperial College London reveal unique spectral signatures arising from the interplay between halogen substituents and gold nanoparticles surfaces (Analytical Chemistry, June 15 issue), suggesting potential applications in diagnostic assays requiring high sensitivity detection capabilities down to femtomolar concentrations.

Critical reviews published last month highlight how strategic halogenation patterns like those found here are becoming standard practice in optimizing lead compounds' ADME profiles during preclinical development stages according to FDA guidelines on physicochemical property optimization for drug candidates.

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