Promiscuity and Selectivity in Covalent Enzyme Inhibition: A Systematic Study of Electrophilic Fragments
作者:Christian Jöst、Christoph Nitsche、Therese Scholz、Lionel Roux、Christian D. Klein
DOI:10.1021/jm5006918
日期:2014.9.25
building blocks for covalently binding ligands. Six reactive groups with modulated electrophilicity were combined with 11 nonreactive moieties, resulting in a small combinatoriallibrary of 72 fragment-like compounds. These compounds were screened against a group of 11 enzyme targets to assess their selectivity and their potential for promiscuous binding to proteins. The assay results showed a considerably
Amino acid derived latent isocyanates: irreversible inactivation of porcine pancreatic elastase and human leukocyte elastase
作者:William C. Groutas、William R. Abrams、Michael C. Theodorakis、Annette M. Kasper、Steven A. Rude、Robert C. Badger、Timothy D. Ocain、Kevin E. Miller、Min K. Moi
DOI:10.1021/jm00380a010
日期:1985.2
were found to inhibitirreversibly both enzymes. Compound 10 was found to be a specific and selective inhibitor of human leukocyte elastase. In contrast to these, inhibitorsderivedfrom glycine methyl ester 1, D-valine methyl ester 4, and D-norvaline methyl ester 6 were found to be inactive. The results of the present study show that latent isocyanates derivedfrom appropriate aminoacids can serve as
Pushing Back the Limits of Hydrosilylation: Unprecedented Catalytic Reduction of Organic Ureas to Formamidines
作者:Jacky Pouessel、Olivier Jacquet、Thibault Cantat
DOI:10.1002/cctc.201300653
日期:2013.12
Pushing back the limits: A novel catalytic transformation has been designed to prepare formamidine derivatives by reduction of substituted ureas with hydrosilanes. Simple iron catalysts based on commercially available iron salts and phosphine ligands prove to be highly active in promoting this new hydrosilylation reaction.
申请人:COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
公开号:US20150266813A1
公开(公告)日:2015-09-24
A method for preparing formamidines of formula (I) in a single step by reducing ureas of formula (II) using silanes of formula (III), according to reaction (II)+(III)+(I) is provided. The present invention also provides a method for preparing insecticides, pesticides, fungicides, pharmaceutical products and catalysts, including a step of preparing formamidines of formula (I) according to the invention.
Efficient Solid-Phase Synthesis of Disubstituted 1,3-Dihydro-imidazol-2-ones
作者:Gérard Rossé、Julie Strickler、Marcel Patek
DOI:10.1055/s-2004-831316
日期:——
A bromoacetal linker was used to achieve the synthesis of ureas on a solid support. The resulting ureido acetals were treated with TFA and were converted in an intramolecular cyclization via N-acyliminium ion to disubstituted 1,3-dihydro-imidazol-2-ones.