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Recent Advances in the Application of tert-Butyl 1-cyclopropylhydrazinecarboxylate (CAS: 928053-38-7) in Chemical Biology and Pharmaceutical Research

The compound tert-butyl 1-cyclopropylhydrazinecarboxylate (CAS: 928053-38-7) has recently emerged as a key intermediate in pharmaceutical synthesis and chemical biology research. This hydrazine derivative has shown significant potential in the development of novel therapeutic agents, particularly in the areas of kinase inhibitors and antimicrobial compounds. Recent studies have highlighted its versatility as a building block for complex heterocyclic systems, with applications ranging from anticancer drug discovery to agrochemical development.

Structural analysis reveals that the cyclopropyl moiety in tert-butyl 1-cyclopropylhydrazinecarboxylate contributes to enhanced metabolic stability compared to linear alkyl analogs, while the Boc-protected hydrazine functionality serves as a masked nucleophile for subsequent transformations. This dual characteristic makes it particularly valuable in medicinal chemistry, where researchers are increasingly utilizing this compound to develop conformationally constrained analogs of bioactive molecules.

In a 2023 study published in the Journal of Medicinal Chemistry, researchers employed 928053-38-7 as a key intermediate in the synthesis of novel cyclopropane-containing JAK2 inhibitors. The study demonstrated that derivatives prepared from this building block showed improved selectivity profiles against the JAK family kinases compared to previous generations of inhibitors. The cyclopropyl group was found to occupy a unique hydrophobic pocket in the kinase domain, contributing to both potency and selectivity.

Another significant application was reported in antimicrobial research, where tert-butyl 1-cyclopropylhydrazinecarboxylate served as the starting material for a series of triazole-containing compounds with activity against drug-resistant Gram-positive pathogens. The resulting molecules showed promising in vitro activity against MRSA strains while maintaining favorable cytotoxicity profiles, suggesting potential for development as next-generation antibiotics.

The synthetic utility of 928053-38-7 has been further expanded through recent methodological developments. A 2024 publication in Organic Letters described a novel photochemical protocol for the direct functionalization of the cyclopropane ring while preserving the hydrazinecarboxylate moiety. This advancement opens new possibilities for late-stage diversification of pharmaceutical candidates derived from this scaffold.

From a safety and handling perspective, recent toxicological studies have provided more comprehensive data on tert-butyl 1-cyclopropylhydrazinecarboxylate. While the compound requires standard precautions for hydrazine derivatives, its Boc-protected form demonstrates improved handling characteristics compared to unprotected analogs. Process chemistry improvements have also been reported, with several groups developing more sustainable synthetic routes to this valuable intermediate.

Looking forward, the unique structural features of 928053-38-7 continue to inspire innovative applications in drug discovery. Current research directions include its incorporation into PROTAC molecules and its use as a linchpin for diversity-oriented synthesis. As the pharmaceutical industry places increasing emphasis on three-dimensional molecular complexity, the cyclopropane-containing scaffold of this compound positions it as a strategically important building block for future medicinal chemistry campaigns.

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• 911392-15-9(1,2-Hydrazinedicarboxylic acid, 1-(1-methylcyclopropyl)-,bis(1,1-dimethylethyl) ester)
• 111508-28-2(Ethyl 1-propylhydrazinecarboxylate)
• 627908-59-2(HYDRAZINECARBOXYLIC ACID, 1-(3-BUTENYL)-, 1,1-DIMETHYLETHYL ESTER)
• 737001-67-1(N-propyl(tert-butoxy)carbohydrazide)
• 515863-47-5(Hydrazinecarboxylic acid, 1-(1-propylbutyl)-, 1,1-dimethylethyl ester)
• 844872-72-6(Carbamic acid, cyclopropylnitroso-, 1,1-dimethylethyl ester)
• 955370-01-1(Tert-butyl 1-ethylhydrazinecarboxylate)
• 175233-53-1(N-(propan-2-yl)(tert-butoxy)carbohydrazide)
• 515863-45-3(N-cyclohexyl(tert-butoxy)carbohydrazide)