A number of diazepines are known to inhibit bromo- and extra-terminal domain (BET) proteins. Their BET inhibitory activity derives from the fusion of an acetyl-lysine mimetic heterocycle onto the diazepine framework. Herein we describe a straightforward, modular synthesis of novel 1,2,3-triazolobenzodiazepines and show that the 1,2,3-triazole acts as an effective acetyl-lysine mimetic heterocycle. Structure-based optimization of this series of compounds led to the development of potent BET bromodomain inhibitors with excellent activity against leukemic cells, concomitant with a reduction in c-MYC expression. These novel benzodiazepines therefore represent a promising class of therapeutic BET inhibitors.

中文翻译：

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1,2,3-三唑并苯并二氮杂BET溴结构域抑制剂的设计，合成和生物活性

已知许多二氮杂卓可抑制溴末端和末端外域（BET）蛋白。它们的BET抑制活性源自乙酰赖氨酸模拟杂环在二氮杂骨架上的融合。在这里，我们描述了新颖的1,2,3-三唑并苯并二氮杂pine的简单，模块化合成，并表明1,2,3-三唑可作为有效的乙酰赖氨酸模拟杂环。该系列化合物的基于结构的优化导致开发出有效的BET溴结构域抑制剂，该抑制剂对白血病细胞具有出色的活性，并伴有c- MYC表达的降低。因此，这些新型苯并二氮杂pine代表了有前途的一类治疗性BET抑制剂。