directly causing chromosome segregation errors and tumorigenesis. In this study, we described our efforts to develop a series of PLK4 inhibitors with 1H-pyrazolo[3,4-d]pyrimidine core, and further structure- and receptor-based design and optimization resulted in a potentinhibitor WY29 (IC50 = 0.027 μM), which exhibited good selectivity to other PLK family members (PLK1-3). At the cellular level, compound
中心粒复制在每个细胞周期发生一次,并受 Polo 样激酶 4 (PLK4) 调节。PLK4在体细胞中的过度表达会导致中心粒的过度形成,直接导致染色体分离错误和肿瘤发生。在这项研究中,我们描述了我们开发一系列具有 1 H -吡唑并 [3,4- d ] 嘧啶核心的 PLK4 抑制剂的努力,并且进一步基于结构和受体的设计和优化产生了有效的抑制剂WY29 (IC 50 = 0.027 μM),对其他 PLK 家族成员 (PLK1-3) 表现出良好的选择性。在细胞水平上,化合物WY29对三种乳腺癌细胞系(MCF-7、BT474 和 MDA-MB-231)表现出优异的抗增殖活性,而对正常细胞系 HUVEC 的抑制活性较弱。此外,化合物WY29的体外初步类药性评价表明,其在人血浆和肝微粒体中具有突出的稳定性,对人细胞色素P450的主要亚型具有较弱的抑制活性。此外,化合物WY29的类药性预测显示出显着的类药性(类药性模式评分:1
Microwave-assisted synthesis of pyrazolo[3,4-d]pyrimidines from 2-amino-4,6-dichloropyrimidine-5-carbaldehyde under solvent-free conditions
The microwave-induced synthesis of pyrazolo[3,4-d]pyrimidines 4 in the reaction of N4-substituted-2,4-diamino-6-chloro-5-carbaldehydes 3 with hydrazine is described here. Precursors 3 have been prepared by the mono-amination of 2-amino-4,6-dichloropyrimidine-5-carbaldehyde 2 with aliphatic and aromatic amines. The reaction times with primary amines were relatively shorter than for secondary amines
这里描述了在N 4-取代的2,4-二氨基-6-氯-5-甲醛醛3与肼的反应中微波诱导的吡唑并[3,4- d ]嘧啶4的合成。前体3是通过2-氨基-4,6-二氯嘧啶-5-甲醛2与脂族和芳族胺的单胺化反应制备的。与伯胺的反应时间相对短于仲胺。