Background: The carboxylesterase Notum has been shown to act as a key negative regulator of the Wnt signalling pathway by mediating the depalmitoleoylation of Wnt proteins. LP-922056 (1) is an orally active inhibitor of Notum. We are investigating the role of Notum in modulating Wnt signalling in the central nervous system and wished to establish if 1 would serve as a peripherally restricted control. An accessible and improved synthetic route would allow 1 to become more readily available as a chemical tool to explore the fundamental biology of Notum and build target validation to underpin new drug discovery programs.

中文翻译：

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使用1-氯-1,2-苯并恶恶唑-3-酮作为高级亲电子氯化剂的Notum抑制剂LP-922056的改进，可扩展合成

背景：羧酸酯酶Notum已被证明通过介导Wnt蛋白的去棕榈油酰化作用而成为Wnt信号通路的关键负调控因子。LP-922056（1）是Notum的口服活性抑制剂。我们正在研究Notum在调节中枢神经系统中Wnt信号传导中的作用，并希望确定1是否可以作为周围受限的控制。一种易于使用且经过改进的合成途径将使1可以更容易地用作化学工具，以探索Notum的基本生物学并建立靶标验证，以支持新的药物发现计划。