1. Academic Validation
  2. Discovery of Imidazoisoindole Derivatives as Highly Potent and Orally Active Indoleamine-2,3-dioxygenase Inhibitors

Discovery of Imidazoisoindole Derivatives as Highly Potent and Orally Active Indoleamine-2,3-dioxygenase Inhibitors

  • ACS Med Chem Lett. 2019 Jun 3;10(6):949-953. doi: 10.1021/acsmedchemlett.9b00114.
Wangyang Tu 1 Fanglong Yang 1 Guoji Xu 1 Jiangtao Chi 1 Zhiwei Liu 1 Wei Peng 1 Bing Hu 1 Lei Zhang 1 Hong Wan 1 Nan Yu 1 Fangfang Jin 1 Qiyue Hu 1 Lianshan Zhang 2 Feng He 1 3 Weikang Tao 1 3
Affiliations

Affiliations

  • 1 Shanghai Hengrui Pharmaceutical Co., Ltd., 279 Wenjing Road, Shanghai 200245, China.
  • 2 Jiangsu Hengrui Medicine Co., Ltd., Lianyungang, Jiangsu 222047, China.
  • 3 Chengdu Suncadia Medicine Co., Ltd., 88 South Keyuan Road, Chengdu, Sichuan 610000, China.
Abstract

A novel series of imidazoisoindoles were identified as potent indoleamine-2,3-dioxygenase (IDO) inhibitors. Lead optimization toward improving potency and eliminating CYP inhibition resulted in the discovery of lead compound 25, a highly potent IDO Inhibitor with favorable pharmacokinetic properties. In the MC38 xenograft model in hPD-1 transgenic mice, 25 in combination with the anti-PD-1 monoclonal antibody (SHR-1210) achieved a synergistic antitumor effect superior to each single agent.

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