Azetidine-2,4-diones (4-Oxo-β-lactams) as Scaffolds for Designing Elastase Inhibitors
作者:Jalmira Mulchande、Rita C. Guedes、Wing-Yin Tsang、Michael I. Page、Rui Moreira、Jim Iley
DOI:10.1021/jm701257h
日期:2008.3.1
N-(4-aryl) position in 3,3-diethyl- N-aryl derivatives increasing the rate of enzyme acylation and generating a Hammett rho-value of 0.65. Compared with a rho-value of 0.96 for the rates of alkaline hydrolysis of the same series, this is indicative of an earlier transitionstate for the enzyme-catalyzed reaction. Docking studies indicate favorable noncovalent interactions of the inhibitor with the enzyme
Access to Pyrazolidin‐3,5‐diones through Anodic N–N Bond Formation
作者:Tile Gieshoff、Dieter Schollmeyer、Siegfried R. Waldvogel
DOI:10.1002/anie.201603899
日期:2016.8
Pyrazolidin‐3,5‐diones are important motifs in heterocyclic chemistry and are of high interest for pharmaceutical applications. In classic organic synthesis, the hydrazinic moiety is installed through condensation using the corresponding hydrazine building blocks. However, most N,N′‐diaryl hydrazines are toxic and require upstream preparation owing to their low commercial availability. We present an