Tavares, Francis X. et al. published their research in Journal of Medicinal Chemistry in 2004 | CAS: 3528-58-3

1-Ethyl-1H-pyrazol-5-amine (cas: 3528-58-3) belongs to pyrazole derivatives. Pyrazoles, a five-membered heterocycle containing two adjacent nitrogen atoms, are the core structures found in a number of molecules that possess a wide range of pharmaceutical and agricultural activities. Pyrazoles and pyrimidines have diverse biological and pharmacological activities. There are a number of antimicrobial compounds containing pyrazole moiety as the core unit. Pyrazofurin is important antimicrobial drug and 2-methylpyrimidine-4-ylamine derivatives I and II were found to be effective inhibitors of Escherichia coli PDHc-E1 with antibacterial and antifungal activity.Application In Synthesis of 1-Ethyl-1H-pyrazol-5-amine

Potent and Selective Ketoamide-Based Inhibitors of Cysteine Protease, Cathepsin K was written by Tavares, Francis X.;Deaton, David N.;Miller, Aaron B.;Miller, Larry R.;Wright, Lois L.;Zhou, Hui-Qiang. And the article was included in Journal of Medicinal Chemistry in 2004.Application In Synthesis of 1-Ethyl-1H-pyrazol-5-amine This article mentions the following:

Cathepsin K, a lysosomal cysteine protease of the papain superfamily, is abundantly and selectively expressed in osteoclasts, suggesting that this enzyme is crucial for bone resorption. Prevention of osteoclast-mediated bone resorption via inhibition of cathepsin K could be an effective approach to prevent osteoporosis. Potent and selective reversible ketoamide-based inhibitors have been identified in the present study. Using a known crystal structure of a ketoamide-based inhibitor, information from residues that form the P2/P3 pocket was used in the design of inhibitors that could allow for gains in selectivity and potency. Further, incorporation of P’ selective heterocycles, along with the P2/P3 modifications, is also described. These modifications have resulted in potent and selective cathepsin K inhibitors that allow for improvements in their physiochem. properties and represent a viable lead series for the discovery of new therapies for the prevention and treatment of osteoporosis. In the experiment, the researchers used many compounds, for example, 1-Ethyl-1H-pyrazol-5-amine (cas: 3528-58-3Application In Synthesis of 1-Ethyl-1H-pyrazol-5-amine).

1-Ethyl-1H-pyrazol-5-amine (cas: 3528-58-3) belongs to pyrazole derivatives. Pyrazoles, a five-membered heterocycle containing two adjacent nitrogen atoms, are the core structures found in a number of molecules that possess a wide range of pharmaceutical and agricultural activities. Pyrazoles and pyrimidines have diverse biological and pharmacological activities. There are a number of antimicrobial compounds containing pyrazole moiety as the core unit. Pyrazofurin is important antimicrobial drug and 2-methylpyrimidine-4-ylamine derivatives I and II were found to be effective inhibitors of Escherichia coli PDHc-E1 with antibacterial and antifungal activity.Application In Synthesis of 1-Ethyl-1H-pyrazol-5-amine

Referemce:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics