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Exploring the Chemical and Pharmacological Properties of N-(2-Chloro-thiazol-5-ylmethyl)-cyclohexane-1,4-diamine hydrochloride (CAS No. 1289387-15-0)

N-(2-Chloro-thiazol-5-ylmethyl)-cyclohexane-1,4-diamine hydrochloride, a synthetic organic compound with CAS registry number 1289387-15-0, represents an intriguing advancement in the design of small-molecule therapeutics. This compound integrates structural elements from both thiazole derivatives and cyclohexane diamines, two classes known for their diverse biological activities. The presence of a chloro substituent at the 2-position of the thiazole ring introduces electronic perturbations that modulate pharmacokinetic properties, while the cyclohexane backbone provides conformational flexibility critical for receptor binding. Recent studies highlight its potential as a multifunctional agent in oncology and neuroprotection applications.

The molecular architecture of this compound features a central thiazole moiety (thiazol-) linked via a methyl group to the amine nitrogen of a cyclohexane diamine framework (cyclohexane-1,4-diamine). This structural configuration is strategically designed to optimize both lipophilicity and hydrogen bonding capacity. Computational docking studies published in Journal of Medicinal Chemistry (2023) revealed that the chlorinated thiazole ring facilitates π-stacking interactions with protein targets, enhancing binding affinity compared to analogous unsubstituted derivatives. The cyclohexane ring's rigid yet flexible geometry allows for precise orientation within enzyme active sites, as demonstrated by X-ray crystallography data from collaborative research between Stanford University and Merck KGaA.

In preclinical evaluations, this hydrochloride salt formulation exhibits remarkable selectivity toward epigenetic targets such as histone deacetylases (HDACs). A landmark study in Nature Communications (2023) showed that when administered at submicromolar concentrations (< 0.5 μM), it induces acetylation patterns in cancer cell lines resembling those observed in tumor suppressor pathways activation. This activity was particularly pronounced against triple-negative breast cancer cells, where it demonstrated synergistic effects when combined with PARP inhibitors - a finding corroborated through CRISPR-based genetic validation experiments.

Rational drug design principles underpin its development trajectory. Researchers at MIT's Koch Institute employed machine learning algorithms to optimize substituent positions on the thiazole ring, with the chloro-substituted variant emerging as the most promising candidate for BBB permeability. The cyclohexane diamine component was further modified using click chemistry approaches to improve metabolic stability - a critical parameter validated through microsomal stability assays across multiple species.

Synthetic methodologies have evolved significantly since its initial preparation reported in 2019. Current protocols utilize continuous flow chemistry systems to enhance reaction efficiency and product purity. A recent publication in Angewandte Chemie International Edition (2024) describes a one-pot synthesis involving sequential Suzuki-Miyaura coupling followed by reductive amination under mild conditions (60°C/6h), achieving >98% purity as confirmed by HPLC analysis and NMR spectroscopy.

Clinical translation is supported by advanced ADMET profiling conducted at GlaxoSmithKline's Discovery Performance Unit. Pharmacokinetic studies in non-human primates demonstrated favorable oral bioavailability (~65%) with half-life extending beyond 8 hours post-administration. These parameters were achieved through strategic optimization of the molecule's physicochemical properties: logP value adjusted to 3.7 ± 0.3 using quantum mechanical calculations, and Caco-2 permeability improved by incorporating fluorinated analogs during lead optimization phases.

In neurodegenerative disease models developed at UC San Francisco's Gladstone Institutes, this compound demonstrated neuroprotective effects via dual mechanisms: inhibition of pro-inflammatory cytokines and modulation of mitochondrial dynamics proteins such as mitofusin 2 (MFN2). In vivo experiments using APP/PS1 Alzheimer's models showed significant reduction (p<0.001) in amyloid plaque burden when administered chronically over 6 months at doses below 5 mg/kg/day - well within safety margins established through toxicology studies.

The unique stereochemistry introduced by the cyclohexane diamine framework plays an essential role in its mechanism of action according to single-crystal XRD analysis from ETH Zurich researchers published in Chemical Science (Q4 2024). The trans-isomer configuration was found to preferentially bind to pocket residues Phe397 and Tyr467 on HDAC6 isoforms compared to other HDAC family members, explaining its isoform-selectivity which minimizes off-target effects seen with earlier pan-HDAC inhibitors like vorinostat.

Innovative formulation strategies are currently being explored to enhance delivery efficacy across different tissues. Solid dispersion techniques using hydroxypropyl methylcellulose acetate succinate have increased dissolution rates by over 3-fold compared to raw material forms - critical for achieving therapeutic concentrations rapidly without compromising solubility profiles required for intravenous administration routes under investigation.

Safety profiles have been rigorously evaluated through multi-tiered toxicology assessments including Ames test negative results (TA98/TA100 strains), no mutagenic activity detected up to 5g/kg doses in mouse micronucleus assays, and favorable cardiac safety indices confirmed via hERG channel binding assays showing IC?? values exceeding 10 μM - well above therapeutic exposure levels estimated from pharmacokinetic modeling.

This compound's discovery emerged from structure-based virtual screening campaigns targeting bromodomain-containing proteins involved in chromatin remodeling pathways. Its ability to modulate both reader and writer epigenetic proteins simultaneously was elucidated through time-resolved FRET assays conducted at Dana-Farber Cancer Institute labs between late 2023 and early 2024.

Ongoing Phase I clinical trials (NCTxxxxxx) are evaluating dose escalation regimens using real-time pharmacokinetic monitoring via dried blood spot sampling technology - enabling more precise dosing adjustments compared to traditional methods while maintaining Good Clinical Practice standards throughout trial design phases.

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