作者:Carlos J.A. Ribeiro、Jayakanth Kankanala、Jiashu Xie、Jessica Williams、Hideki Aihara、Zhengqiang Wang
DOI:10.1016/j.bmcl.2018.11.044
日期:2019.1
5-phenyl triazolopyrimidine regioisomer 7a. Subsequent structure-activity relationship (SAR) via the synthesis of a total of 47 analogues of both the 5-phenyl triazolopyrimidine scaffold (7) and its bioisosteric triazolopyridine scaffold (17) identified four derivatives (7a, 17a, 17e, and 17z) with significant TDP2 inhibition (IC50 < 50 µM), with 17z showing excellent cell permeability and no cytotoxicity
酪氨酰-DNA磷酸二酯酶2(TDP2)修复拓扑异构酶II(TOP2)介导的DNA损伤,并引起细胞对临床使用的TOP2毒物的耐药性。抑制TDP2可能会使癌细胞对TOP2毒物敏感。商业化合物P10A10(其结构被指定为7-苯基三唑并嘧啶类似物6a)先前在我们基于虚拟和荧光的生化筛选活动中被鉴定为TDP2抑制剂。我们在本文中报道,通过再合成和结构阐明的命中验证揭示了P10A10的正确结构(Chembridge ID 7236827)为5-苯基三唑并嘧啶区域异构体7a。