Discovery of (S)-3′-hydroxyblebbistatin and (S)-3′-aminoblebbistatin: polar myosin II inhibitors with superior research tool properties
作者:Sigrid Verhasselt、Bart I. Roman、Olivier De Wever、Kristof Van Hecke、Rik Van Deun、Marc E. Bracke、Christian V. Stevens
DOI:10.1039/c7ob00006e
日期:——
In search of myosin II inhibitors with superior research tool properties, a chemical optimization campaign of the blebbistatin scaffold was conducted in this paper. (S)-Blebbistatin is the best known small-molecule inhibitor of myosin II ATPase activity. Unfortunately, as a research tool this compound has several deficiencies: it is photolabile and (photo)toxic, has low water solubility, and its (fluorescent)
为了寻找具有优异研究工具性能的肌球蛋白II抑制剂,本文对blebbistatin支架进行了化学优化。(S)-布雷他汀是最著名的肌球蛋白II ATPase活性的小分子抑制剂。不幸的是,该化合物作为研究工具有几个缺陷:光不稳定和(光)有毒,水溶性低,并且其(荧光)沉淀物干扰(荧光)读数。考虑到获得具有改进性质的工具化合物,制备了一系列D-环修饰的极性类似物的两种对映体。我们确定(小号)-3'- hydroxyblebbistatin(小号) - 2和(小号)-3'- aminoblebbistatin(小号) -3作为两种肌球蛋白II抑制剂,其水溶性比(S)-blebbistatin高30倍。此外,这些分子不会对(荧光)读数造成干扰。(S)-2和(S)-3因此是(S)-blebbistatin的替代品,是研究肌球蛋白II的研究工具。