38409-70-0Relevant articles and documents
Group-Based Optimization of Potent and Cell-Active Inhibitors of the von Hippel-Lindau (VHL) E3 Ubiquitin Ligase: Structure-Activity Relationships Leading to the Chemical Probe (2S,4R)-1-((S)-2-(1-Cyanocyclopropanecarboxamido)-3,3-dimethylbutanoyl)-4-hydroxy-N-(4-(4-methylthiazol-5-yl)benzyl)pyrrolidine-2-carboxamide (VH298)
Soares, Pedro,Gadd, Morgan S.,Frost, Julianty,Galdeano, Carles,Ellis, Lucy,Epemolu, Ola,Rocha, Sonia,Read, Kevin D.,Ciulli, Alessio
, p. 599 - 618 (2018/02/07)
The von Hippel-Lindau tumor suppressor protein is the substrate binding subunit of the VHL E3 ubiquitin ligase, which targets hydroxylated α subunit of hypoxia inducible factors (HIFs) for ubiquitination and subsequent proteasomal degradation. VHL is a potential target for treating anemia and ischemic diseases, motivating the development of inhibitors of the VHL:HIF-α protein-protein interaction. Additionally, bifunctional proteolysis targeting chimeras (PROTACs) containing a VHL ligand can hijack the E3 ligase activity to induce degradation of target proteins. We report the structure-guided design and group-based optimization of a series of VHL inhibitors with low nanomolar potencies and improved cellular permeability. Structure-activity relationships led to the discovery of potent inhibitors 10 and chemical probe VH298, with dissociation constants 100 nM, which induced marked HIF-1α intracellular stabilization. Our study provides new chemical tools to probe the VHL-HIF pathways and new VHL ligands for next-generation PROTACs.
Regulating plant growth with novel 1-amino-cyclopropanecarboxylic acid metal complexes
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, (2008/06/13)
1-Amino-cyclopropanecarboxylic acid metal complexes of the formula STR1 in which R is a hydrogen atom or a radical of the formula --CO--R1, R1 is a hydrogen atom or an alkyl or phenyl radical, and M is a transition metal atom which can assume the coordination number 4 which possess plant growth regulating activity.