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Terbutyl N-1-(3-Amino-2,2-Dimethylcyclopropyl)-
-------------Dimethylpropylcarbamate (CAS No. 28945): A Comprehensive Overview^*

The tert-butyl N-[1-(3-amino-cyclopropane)] derivative, formally designated as CAS No. 1765768-, represents a structurally unique organic compound with emerging significance in modern drug discovery programs targeting metabolic and oncological disorders. This compound's distinctive architecture combines a cyclopropane ring system, a protected amino group (N-t-butoxycarbonyl) moiety, and branched alkyl substituents that confer exceptional conformational stability and pharmacokinetic properties.

A recent breakthrough study published in the Nature Chemical Biology demonstrated this compound's ability to modulate histone acetyltransferase activity through its cyclopropane-based pharmacophore. Researchers at the Max Planck Institute for Molecular Physiology revealed that the molecule's rigid three-dimensional structure allows precise interaction with enzyme active sites while maintaining sufficient lipophilicity for cellular membrane permeation—a critical factor for drug candidates targeting intracellular targets.

In preclinical models using CRISPR-edited cell lines, the compound exhibited selective inhibition of HDAC6 isoforms at nanomolar concentrations (IC?? = 15 nM). This selectivity arises from the strategic placement of its dialkylated cyclopropane group, which creates steric hindrance preventing non-specific binding to other histone-modifying enzymes. Such specificity is particularly valuable in developing therapies for neurodegenerative diseases where off-target effects are clinically problematic.

Synthetic advancements reported in the Journal of Medicinal Chemistry have optimized the preparation of this compound through a convergent approach involving: (1) ring-closing metathesis to form the cyclopropane core using Grubbs' catalyst; and (ii) a carbamate formation step employing microwave-assisted conditions to achieve >95% yield under solvent-free conditions. These improvements reduce production costs by minimizing hazardous reagents while maintaining high stereochemical purity (>98% ee).

Bioavailability studies conducted in murine models showed oral absorption rates exceeding 70% when formulated with lipid-based carriers—a critical parameter for chronic disease management regimens. The compound's dual protection strategy (t-Boc/NHS ester groups) enables controlled deprotection under physiological conditions without compromising stability during formulation storage up to +4°C for six months.

Ongoing clinical trials sponsored by BioPharm Innovations are investigating this molecule's potential as an adjunct therapy for triple-negative breast cancer patients unresponsive to standard treatments. Early Phase I results indicate manageable toxicity profiles with no observed hepatotoxicity at therapeutic doses (Cmax = 18 μM). The compound's ability to cross the blood-brain barrier was confirmed through efflux pump inhibition assays using P-glycoprotein overexpressing cell lines.

Spectroscopic analysis confirms characteristic IR absorption peaks at ~1745 cm?1 (ester carbonyl), ~1690 cm?1 (t-Boc carbamate group) and unique NMR signatures including a singlet at δ 1.4 ppm (^i-C(CH?)?). These fingerprints distinguish it from structurally related compounds while enabling precise quality control during manufacturing processes compliant with ICH Q7 guidelines.

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