Mutant isocitrate dehydrogenase 1 (IDH1) is an attractive therapeutic target for the treatment of various cancers such as AML, glioma, and glioblastoma. We have evaluated 3-pyrimidin-4-yl-oxazolidin-2-ones as mutant IDH1 inhibitors that bind to an allosteric, induced pocket of IDH1^R132H. This Letter describes SAR exploration focused on improving both the in vitro and in vivo metabolic stability of the compounds, leading to the identification of 19 as a potent and selective mutant IDH1 inhibitor that has demonstrated brain penetration and excellent oral bioavailability in rodents. In a preclinical patient-derived IDH1 mutant xenograft tumor model study, 19 efficiently inhibited the production of the biomarker 2-HG.

中文翻译：

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口服生物利用度和脑渗透突变IDH1抑制剂3-嘧啶-4-基-恶唑烷-2-酮的优化

突变异柠檬酸脱氢酶1（IDH1）是治疗各种癌症（例如AML，神经胶质瘤和胶质母细胞瘤）的有吸引力的治疗靶标。我们已经评估了3-pyrimidin-4-yl-oxazolidin-2-ones作为与IDH1 ^R132H的变构，诱导口袋结合的突变IDH1抑制剂。这封信描述了针对改善化合物的体外和体内代谢稳定性的SAR探索，从而将19鉴定为有效的和选择性的突变IDH1抑制剂，该IDH1抑制剂已证明在啮齿动物中具有大脑渗透性和出色的口服生物利用度。在临床前患者衍生的IDH1突变异种移植肿瘤模型研究中，19 有效地抑制了生物标记物2-HG的产生。