Asymmetric synthesis of (S)-1-aminoindan-1,5-dicarboxylic acid and related analogues via intramolecular acylation of enantiopure α,α-disubstituted amino acids
asymmetric Strecker reaction/alkylation method. Of the four types of substrates tested for intramolecular acylation, those with a 4-alkoxyl group do not react, those with a 4-bromo substituent give lower conversions, while those without a 4-substituent or with a 4-methyl group work well to give the desired cyclization products. Based on these investigations, a newroute for preparing (S)-1-aminoindan-1
Discovery of Nanomolar Dengue and West Nile Virus Protease Inhibitors Containing a 4-Benzyloxyphenylglycine Residue
作者:Mira A. M. Behnam、Dominik Graf、Ralf Bartenschlager、Darius P. Zlotos、Christian D. Klein
DOI:10.1021/acs.jmedchem.5b01441
日期:2015.12.10
finally fragment merging generated compounds with in vitro affinities in the low nanomolar range. The most promising derivative reached Ki values of 12 nM at the DENV-2 and 39 nM at the WNV proteases. Several of the newly discovered proteaseinhibitors yielded a significant reduction of dengue and WestNilevirus titers in cell-based assays of virus replication, with an EC50 value of 3.4 μM at DENV-2
A New Class of Dengue and West Nile Virus Protease Inhibitors with Submicromolar Activity in Reporter Gene DENV-2 Protease and Viral Replication Assays
作者:Nikos Kühl、Dominik Graf、Josephine Bock、Mira A. M. Behnam、Mila-Mareen Leuthold、Christian D. Klein
DOI:10.1021/acs.jmedchem.0c00413
日期:2020.8.13
discovery against dengue and other flaviviruses is the viral serineprotease NS2B-NS3. We present the design, synthesis, and in vitro and cellular characterization of a novel chemotype of potent small-molecule non-peptidic dengue proteaseinhibitors derived from 4-benzyloxyphenylglycine. A newly developed luciferase-based DENV-2 protease reporter system in HeLa cells (DENV2proHeLa) was employed to