He Tian, Wei Liu, Zhixing Zhou, Qian Shang, Yuqiang Liu, Yafei Xie, Changying Liu, Weiren Xu, Lida Tang, Jianwu Wang, Guilong Zhao
Molecules (Basel, Switzerland) 2016 Nov 16In order to systematically explore and understand the structure-activity relationship (SAR) of a lesinurad-based hit (1c) derived from the replacement of the S atom in lesinurad with CH₂, 18 compounds (1a-1r) were designed, synthesized and subjected to in vitro URAT1 inhibitory assay. The SAR exploration led to the discovery of a highly potent flexible URAT1 inhibitor, 1q, which was 31-fold more potent than parent lesinurad (IC50 = 0.23 μM against human URAT1 for 1q vs 7.18 μM for lesinurad). The present study discovered a flexible molecular scaffold, as represented by 1q, which might serve as a promising prototype scaffold for further development of potent URAT1 inhibitors, and also demonstrated that the S atom in lesinurad was not indispensable for its URAT1 inhibitory activity.
He Tian, Wei Liu, Zhixing Zhou, Qian Shang, Yuqiang Liu, Yafei Xie, Changying Liu, Weiren Xu, Lida Tang, Jianwu Wang, Guilong Zhao. Discovery of a Flexible Triazolylbutanoic Acid as a Highly Potent Uric Acid Transporter 1 (URAT1) Inhibitor. Molecules (Basel, Switzerland). 2016 Nov 16;21(11)
PMID: 27854343
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