Discovery of 3-Ethyl-4-(3-isopropyl-4-(4-(1-methyl-1<i>H</i>-pyrazol-4-yl)-1<i>H</i>-imidazol-1-yl)-1<i>H</i>-pyrazolo[3,4-<i>b</i>]pyridin-1-yl)benzamide (TAS-116) as a Potent, Selective, and Orally Available HSP90 Inhibitor
作者:Takao Uno、Yuichi Kawai、Satoshi Yamashita、Hiromi Oshiumi、Chihoko Yoshimura、Takashi Mizutani、Tatsuya Suzuki、Khoon Tee Chong、Kazuhiko Shigeno、Mitsuru Ohkubo、Yasuo Kodama、Hiromi Muraoka、Kaoru Funabashi、Koichi Takahashi、Shuichi Ohkubo、Makoto Kitade
DOI:10.1021/acs.jmedchem.8b01085
日期:2019.1.24
proteins, promoting cancer cell growth, and survival. A novel series of HSP90 inhibitors were discovered by structure–activity relationship (SAR)-based optimization of an initial hit compound 11a having a 4-(4-(quinolin-3-yl)-1H-indol-1-yl)benzamide structure. The pyrazolo[3,4-b]pyridine derivative, 16e (TAS-116), is a selective inhibitor of HSP90α and HSP90β among the HSP90 family proteins and exhibits
分子伴侣热休克蛋白90(HSP90)是癌症治疗的有希望的目标,因为它有助于稳定与癌症相关的蛋白质,促进癌细胞的生长和存活。通过基于结构-活性关系(SAR)的具有4-(4-(喹啉-3-基)-1 H-吲哚-1-基)苯甲酰胺的初始命中化合物11a优化,发现了一系列新的HSP90抑制剂结构体。吡唑并[3,4- b ]吡啶衍生物16e(TAS-116)是HSP90家族蛋白中HSP90α和HSP90β的选择性抑制剂,在小鼠中可口服。16e类似物16d的X射线共晶体结构在N-末端ATP结合位点显示出独特的结合模式。口服16e在NCI-H1975异种移植小鼠模型中显示出有效的抗肿瘤作用,而体重没有明显减轻。