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
Beyond Basicity: Discovery of Nonbasic DENV-2 Protease Inhibitors with Potent Activity in Cell Culture
作者:Nikos Kühl、Mila M. Leuthold、Mira A. M. Behnam、Christian D. Klein
DOI:10.1021/acs.jmedchem.0c02042
日期:2021.4.22
The viral serineprotease NS2B-NS3 is one of the promising targets for drug discovery against dengue virus and other flaviviruses. The molecular recognition preferences of the protease favor basic, positively charged moieties as substrates and inhibitors, which leads to pharmacokinetic liabilities and off-target interactions with host proteases such as thrombin. We here present the results of efforts
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