Synthesis, biological evaluation, and molecular modelling studies of potent human neutrophil elastase (HNE) inhibitors
作者:Maria Paola Giovannoni、Igor A. Schepetkin、Mark T. Quinn、Niccolò Cantini、Letizia Crocetti、Gabriella Guerrini、Antonella Iacovone、Paola Paoli、Patrizia Rossi、Gianluca Bartolucci、Marta Menicatti、Claudia Vergelli
DOI:10.1080/14756366.2018.1480615
日期:2018.1.1
both competitive HNE inhibitors. Molecularmodelling on 7d and 8d suggests for the latter a more crowded region about the site of the nucleophilic attack, which could explain its lowered activity. In addition molecular dynamics (MD) simulations showed that the isomer 8d appears more prone to form H-bond interactions which, however, keep the reactive sites quite distant for the attack by Ser195. By contrast
Investigation on the reactivity of isoxazol-5-ones towards 1,2-diaza-1,3-dienes: new entry to variously substituted (imidazol-2-yl)acetate and 1,3-oxazin-6-one derivatives
作者:Orazio A. Attanasi、Silvia Bartoccini、Gianfranco Favi、Gianluca Giorgi、Francesca R. Perrulli、Stefania Santeusanio
DOI:10.1016/j.tet.2011.10.118
日期:2012.1
derivative. The first aza-Michael addition is followed by an intramolecular second, affording a fused heterobicyclic system that, upon ring opening and decarboxylation processes, gives rise to novel substituted imidazoles with an acetate functionality in the 2-position. On the contrary, under the same reaction conditions, 3-phenylisoxazol-5-one provides a double Michael addition at two units of DD involving