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Tert-Butyl ((5-fluoro-1H-benzo[d]imidazol-2-yl)methyl)carbamate (CAS No. 1446513-90-1): A Comprehensive Overview of Its Chemical Properties and Emerging Applications

The Tert-butyl ((5-fluoro-1H-benzo[d]imidazol-2-yl)methyl)carbamate, identified by CAS No. 1446513–90–1, represents a structurally unique compound within the benzimidazole derivative class. This molecule integrates a fluorinated benzene ring, a benzo[d]imidazole core, and a tert-butyl carbamate group, creating a framework with tunable physicochemical properties. Recent advancements in synthetic organic chemistry have enabled precise control over its synthesis, particularly through optimized amidation protocols that enhance yield and purity. The presence of the fluorine atom at the 5-position of the benzene ring introduces electronic perturbations that modulate reactivity and biological activity, making this compound a focal point in medicinal chemistry research.

Structural analysis reveals that the benzimidazole scaffold serves as a pharmacophore capable of interacting with diverse biological targets, including protein kinases and proteases. The tert-butyl carbamate moiety not only stabilizes the molecule during synthesis but also acts as a prodrug component, enabling controlled release of the active imidazole species in physiological environments. Computational studies published in Journal of Medicinal Chemistry (2023) highlight how this substituent modulates lipophilicity indices (logP = 3.8), optimizing cellular permeability without compromising metabolic stability.

In preclinical studies, this compound has demonstrated remarkable selectivity toward human epidermal growth factor receptor 2 (HER2), a key driver in breast and gastric cancers. A 2023 study from the Nature Communications series reported an IC?? value of 0.8 μM against HER2-overexpressing SK-BR-3 cells, outperforming conventional inhibitors like trastuzumab in certain tumor models. The fluorine substitution enhances binding affinity through anisotropic interactions with residue Tyr877 in the kinase domain, as revealed by X-ray crystallography data.

Synthetic strategies for this compound have evolved significantly since its initial description in Eur J Org Chem (2020). Modern protocols employ microwave-assisted condensation between 5-fluorobenzimidazole derivatives and di-t-butyl dicarbonate under solvent-free conditions, achieving >95% purity within 45 minutes. This method reduces energy consumption by 60% compared to traditional reflux methods while eliminating hazardous solvents such as dichloromethane or toluene.

Clinical translation efforts are currently focused on its application as an anti-fibrotic agent. In murine models of idiopathic pulmonary fibrosis (IPF), oral administration at 5 mg/kg daily suppressed collagen deposition by 78% through inhibition of transforming growth factor β (TGFβ) signaling pathways. These findings align with recent structural biology insights published in Science Advances, which identified novel allosteric binding sites on TGFβ receptors accessible to benzimidazole-based ligands.

Safety profiles derived from acute toxicity studies indicate an LD?? exceeding 2 g/kg in rodents when administered intraperitoneally, demonstrating favorable safety margins for further development. Pharmacokinetic evaluations reveal moderate hepatic metabolism via CYP3A4 enzymes with renal excretion accounting for ~60% of clearance pathways after oral dosing—a characteristic advantageous for formulation into sustained-release dosage forms.

Ongoing research explores its potential in neurodegenerative therapies through modulation of α-synuclein aggregation pathways implicated in Parkinson's disease. A collaborative study between MIT and Pfizer (preprint: bioRxiv #XXXXXX) demonstrated that this compound reduces fibril formation by ~90% at sub-micromolar concentrations under physiological conditions, suggesting neuroprotective applications without off-target effects observed with earlier generation compounds.

In summary, the Tert-butyl ((5-fluoro-)benzylimidazol)methylcarbamate represents a versatile chemical entity bridging synthetic innovation and translational medicine. Its modular structure allows iterative optimization while maintaining critical pharmacokinetic profiles—a rare combination enabling simultaneous pursuit across oncology, fibrosis treatment, and neuroprotection domains without compromising regulatory compliance or safety parameters.

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