- X-ray Structure-Guided Discovery of a Potent, Orally Bioavailable, Dual Human Indoleamine/Tryptophan 2,3-Dioxygenase (hIDO/hTDO) Inhibitor That Shows Activity in a Mouse Model of Parkinson’s Disease
-
Human indoleamine 2,3-dioxygenase 1 (hIDO1) and tryptophan 2,3-dioxygenase (hTDO) have been closely linked to the pathogenesis of Parkinson’s disease (PD); nevertheless, development of dual hIDO1 and hTDO inhibitors to evaluate their potential efficacy against PD is still lacking. Here, we report biochemical, biophysical, and computational analyses revealing that 1H-indazole-4-amines inhibit both hIDO1 and hTDO by a mechanism involving direct coordination with the heme ferrous and ferric states. Crystal structure-guided optimization led to23, which manifested IC50values of 0.64 and 0.04 μM to hIDO1 and hTDO, respectively, and had good pharmacokinetic properties and brain penetration in mice.23showed efficacy against the 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine-induced mouse motor coordination deficits, comparable to Madopar, an anti-PD medicine. Further studies revealed that different from Madopar,23likely has specific anti-PD mechanisms involving lowering IDO1 expression, alleviating dopaminergic neurodegeneration, reducing inflammatory cytokines and quinolinic acid in mouse brain, and increasing kynurenic acid in mouse blood.
- Ning, Xiang-Li,Li, Yu-Zhi,Huo, Cui,Deng, Ji,Gao, Cheng,Zhu, Kai-Rong,Wang, Miao,Wu, Yu-Xiang,Yu, Jun-Lin,Ren, Ya-Li,Luo, Zong-Yuan,Li, Gen,Chen, Yang,Wang, Si-Yao,Peng, Cheng,Yang, Ling-Ling,Wang, Zhou-Yu,Wu, Yong,Qian, Shan,Li, Guo-Bo
-
supporting information
p. 8303 - 8332
(2021/06/30)
-
- Compound with dual inhibitory activity TDO, IDOO1 and application of compound for treating neurodegenerative disease (by machine translation)
-
The present invention provides a compound of formula I, or a pharmaceutically acceptable salt thereof, or a solvate thereof, which can selectively inhibit TDO, IDOO1, which has a significant inhibitory effect on TDO and/or IDOO1. In addition, the prepared compound has a remarkable anti-tumor effect, has a certain treatment effect on's disease and's disease, and has a good application prospect in the field of medicine preparation. (by machine translation)
- -
-
Paragraph 0083; 0105-0108
(2020/10/06)
-
- m-amino-phenylimino-imidazolidine derivatives for treating urinary incontinence
-
A compound of formula I or of formula II wherein: R1 is F, Cl, Br, CH2F, CF2H, or CF3; R2 is NR6R7, where R6 is Me, Et, Pr, or iPr, and R7 is Me, Et or Pr; and R3, R4, and R5 independently of one another each are H, Me, F, Cl, Br, CH2F, CF2H, or CF3, and if R4 is Me, F, Cl, Br, CH2F, CF2H, or CF3, then R1 is additionally H or Me, or a pharmacologically acceptable salt thereof. In addition, pharmaceutical compositions comprising an effective amount of these compounds, methods for the treatment or prophylaxis of urinary incontinence and diseases of the bladder using these compounds, and methods for making these compounds are disclosed.
- -
-
-