Homo-PROTACs: bivalent small-molecule dimerizers of the VHL E3 ubiquitin ligase to induce self-degradation
作者:Chiara Maniaci、Scott J. Hughes、Andrea Testa、Wenzhang Chen、Douglas J. Lamont、Sonia Rocha、Dario R. Alessi、Roberto Romeo、Alessio Ciulli
DOI:10.1038/s41467-017-00954-1
日期:——
approach to dimerize an E3ligase to trigger its suicide-type chemical knockdown inside cells. We provide proof-of-concept of Homo-PROTACs using diverse molecules composed of two instances of a ligand for the von Hippel-Lindau (VHL) E3ligase. The most active compound, CM11, dimerizes VHL with high avidity in vitro and induces potent, rapid and proteasome-dependent self-degradation of VHL in different cell
Compounds having the general structure A - L - B are presented wherein A and B are independently an E3 ubiquitin ligase protein binding ligand compound of formula 1A or 1 B. Pharmaceutical compositions comprising these compounds and methods of use are also presented.
提供具有一般结构 A - L - B 的化合物,其中 A 和 B 分别是式 1A 或 1B 的 E3 泛素连接酶蛋白结合配体化合物。还提供包含这些化合物的药物组合物和使用方法。
Small molecules
申请人:University of Dundee
公开号:US11261179B2
公开(公告)日:2022-03-01
Compounds having the general structure A-L-B are presented wherein A and B are independently an E3 ubiquitin ligase protein binding ligand compound of formula 1A or 1B. Pharmaceutical compositions comprising these compounds and methods of use are also presented.
介绍了具有一般结构 A-L-B 的化合物,其中 A 和 B 独立地是式 1A 或 1B 的 E3 泛素配体蛋白结合配体化合物。还介绍了包含这些化合物的药物组合物和使用方法。
Ligand Recognition by E- and P-Selectin: Chemoenzymatic Synthesis and Inhibitory Activity of Bivalent Sialyl Lewis x Derivatives and Sialyl Lewis x Carboxylic Acids
作者:Valentin Wittmann、Shuichi Takayama、Ke Wei Gong、Gabriele Weitz-Schmidt、Chi-Huey Wong
DOI:10.1021/jo980350s
日期:1998.7.1
Described is the preparation of five sLe(x) dimers and five sLe(x) carboxylic acids by coupling chemoenzymatically synthesized amino-substituted sialyl Lewis x (sLe(x)) derivative 4 to homobifunctional cross-linkers 20-24 of varying chain length. 20-24 were obtained by alkylating low-molecular-weight oligoethylene glycols with tert-butyl bromoacetate and subsequent transformation of the di-tert-butyl esters into disuccinimide esters. The products were assayed for inhibition against binding of a sLe(a)-polymer to immobilized E- and P-selectin. In the E-selectin assay all dimers had lower IC50 values than the sLex monomer. The results show that comparable binding enhancements can be obtained with linkers of completely different length and rigidity. In the P-selectin assay four of the five sLe(x) carboxylic acids displayed significantly improved inhibitory potency. The lowest IC50 value was observed for the compound with the shortest spacer between the sLex moiety and the additional carboxylate, being ca. 20-40 times more potent than unmodified sLex. These findings should be of importance for the design of new multivalent forms of sLe(x) as well as sLe(x) mimetics as high-affinity selectin ligands.
[EN] ALBUMIN-BINDING CONJUGATES COMPRISING A FATTY ACID AND PEG<br/>[FR] COMPOSES LIANT L'ALBUMINE