126926-42-9Relevant articles and documents
Peptidomimetic plasmepsin inhibitors with potent anti-malarial activity and selectivity against cathepsin D
Zogota, Rimants,Kinena, Linda,Withers-Martinez, Chrislaine,Blackman, Michael J.,Bobrovs, Raitis,Pantelejevs, Teodors,Kanepe-Lapsa, Iveta,Ozola, Vita,Jaudzems, Kristaps,Suna, Edgars,Jirgensons, Aigars
, p. 344 - 352 (2018/12/11)
Following up the open initiative of anti-malarial drug discovery, a GlaxoSmithKline (GSK) phenotypic screening hit was developed to generate hydroxyethylamine based plasmepsin (Plm) inhibitors exhibiting growth inhibition of the malaria parasite Plasmodium falciparum at nanomolar concentrations. Lead optimization studies were performed with the aim of improving Plm inhibition selectivity versus the related human aspartic protease cathepsin D (Cat D). Optimization studies were performed using Plm IV as a readily accessible model protein, the inhibition of which correlates with anti-malarial activity. Guided by sequence alignment of Plms and Cat D, selectivity-inducing structural motifs were modified in the S3 and S4 sub-pocket occupying substituents of the hydroxyethylamine inhibitors. This resulted in potent anti-malarials with an up to 50-fold Plm IV/Cat D selectivity factor. More detailed investigation of the mechanism of action of the selected compounds revealed that they inhibit maturation of the P. falciparum subtilisin-like protease SUB1, and also inhibit parasite egress from erythrocytes. Our results indicate that the anti-malarial activity of the compounds is linked to inhibition of the SUB1 maturase plasmepsin subtype Plm X.
Design and synthesis of potent and selective BACE-1 inhibitor
Bj?rklund, Catarina,Oscarson, Stefan,Benkestock, Kurt,Borkakoti, Neera,Jansson, Katarina,Lindberg, Jimmy,Vrang, Lotta,Hallberg, Anders,Rosenquist, Asa,Samuelsson, Bertil
supporting information; experimental part, p. 1458 - 1464 (2010/08/03)
Highly potent BACE-1 protease inhibitors have been developed from an inhibitors containing a hydroxyethylene (HE) core displaying aryloxymethyl or benzyloxymethyl P1 side chain and a methoxy P1′ side chain. The target molecules were synthesized in good overall yields from chiral carbohydrate starting materials. The inhibitors show high BACE-1 potency and good, selectivity against cathepsin D, where the most potent inhibitor furnishes BACE-1 Ki ? 1 nM and displays > 1000-fold selectivity over cathepsin D.
Norstatines from Aldehydes by sequential organocatalytic α-amination and passerini reaction
Umbreen, Sumaira,Brockhaus, Manfred,Ehrenberg, Helmut,Schmidt, Boris
, p. 4585 - 4595 (2007/10/03)
The combination of the enantioselective, organocatalytic α-amination of aldehydes by diazodicarboxylates and the Passerini reaction provides rapid access to norstatine-based peptidomimetics. These intermediates were elaborated further by deprotection and cleavage of the N-N bond to provide useful building blocks for aspartic protease inhibitors. Coupling of the compounds 76-86 with the mono-isophthalamide 91 provided moderate inhibitors of human β-secretase (BACE) 92-102. Wiley-VCH Verlag GmbH & Co. KGaA, 2006.