1241589-50-3Relevant academic research and scientific papers
Improved P2 phenylglycine-based hepatitis C virus NS3 protease inhibitors with alkenylic prime-side substituents
Lampa, Anna,Ehrenberg, Angelica E.,Gustafsson, Sofia S.,Vema, Aparna,Akerblom, Eva,Lindeberg, Gunnar,Karlen, Anders,Danielson, U. Helena,Sandstroem, Anja
, p. 5413 - 5424 (2010)
Phenylglycine has proved to be a useful P2 residue in HCV NS3 protease inhibitors. A novel π-π-interaction between the phenylglycine and the catalytic H57 residue of the protease is postulated. We hypothesized that the introduction of a vinyl on the phenylglycine might strengthen this π-π-interaction. Thus, herein is presented the synthesis and inhibitory potency of a series of acyclic vinylated phenylglycine-based HCV NS3 protease inhibitors. Surprisingly, inhibitors based on both d- and l-phenylglycine were found to be effective inhibitors, with a slight preference for the d-epimers. Furthermore, prime-side alkenylic extension of the C-terminal acylsulfonamide group gave significantly improved inhibitors with potencies in the nanomolar range (～35 nM), potencies which were retained on mutant variants of the protease.
