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Zhou S, Mao W, Su Y, Zheng X, Qian W, Shen M, Shan N, Li Y, Wang D, Wu S, Sun T, Mu L. Identification of TUL01101: A Novel Potent and Selective JAK1 Inhibitor for the Treatment of Rheumatoid Arthritis. J Med Chem 2022; 65:16716-16740. [PMID: 36512734 DOI: 10.1021/acs.jmedchem.2c01550] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Janus kinase 1 (JAK1) is a potential target for the treatment of rheumatoid arthritis (RA). In this study, the introduction of a spiro ring with a difluoro-substituted cyclopropionamide resulted in the identification of TUL01101 (compound 36) based on a triazolo[1,5-a]pyridine core of filgotinib. It showed excellent potency on JAK1 with an IC50 value of 3 nM and exhibited more than 12-fold selectivity for JAK2 and TYK2. Whole blood assay also demonstrated the high activity and selectivity (37-fold for JAK2). At the same time, TUL01101 also demonstrated excellent metabolic stability and pharmacokinetics (PK) profiles were assayed in three species (mouse, rat, and dog). Moreover, it has been validated for effective activity in the treatment of RA both in collagen-induced arthritis (CIA) and adjuvant-induced arthritis (AIA) models, with low dose and low toxicity. Now, TUL01101 has progressed into phase I clinical trials.
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Affiliation(s)
- Shuhao Zhou
- Zhuhai United Laboratories Co., Ltd., NO.12 Jialian Road, Tanzhou Township, Zhongshan, Guangdong 528467, P. R. China
| | - Weiwei Mao
- WuXi AppTec (Shanghai) Co., Ltd., 288 FuTe Zhong Road, Shanghai 200131, P. R. China
| | - Yuan Su
- Zhuhai United Laboratories Co., Ltd., NO.12 Jialian Road, Tanzhou Township, Zhongshan, Guangdong 528467, P. R. China
| | - Xuejian Zheng
- WuXi AppTec (Shanghai) Co., Ltd., 288 FuTe Zhong Road, Shanghai 200131, P. R. China
| | - Wenyuan Qian
- WuXi AppTec (Shanghai) Co., Ltd., 288 FuTe Zhong Road, Shanghai 200131, P. R. China
| | - Meiyue Shen
- Zhuhai United Laboratories Co., Ltd., NO.12 Jialian Road, Tanzhou Township, Zhongshan, Guangdong 528467, P. R. China
| | - Ningli Shan
- Zhuhai United Laboratories Co., Ltd., NO.12 Jialian Road, Tanzhou Township, Zhongshan, Guangdong 528467, P. R. China
| | - Yaoshuang Li
- Zhuhai United Laboratories Co., Ltd., NO.12 Jialian Road, Tanzhou Township, Zhongshan, Guangdong 528467, P. R. China
| | - Degang Wang
- Zhuhai United Laboratories Co., Ltd., NO.12 Jialian Road, Tanzhou Township, Zhongshan, Guangdong 528467, P. R. China
| | - Shouting Wu
- Zhuhai United Laboratories Co., Ltd., NO.12 Jialian Road, Tanzhou Township, Zhongshan, Guangdong 528467, P. R. China
| | - Tiemin Sun
- Key Laboratory of Structure-Based Drug Design and Discovery, Shenyang Pharmaceutical University, Ministry of Education, Shenyang 110016, P. R. China
| | - Liwei Mu
- Zhuhai United Laboratories Co., Ltd., NO.12 Jialian Road, Tanzhou Township, Zhongshan, Guangdong 528467, P. R. China
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Park E, Lee SJ, Moon H, Park J, Jeon H, Hwang JS, Hwang H, Hong KB, Han SH, Choi S, Kang S. Discovery and Biological Evaluation of N-Methyl-pyrrolo[2,3- b]pyridine-5-carboxamide Derivatives as JAK1-Selective Inhibitors. J Med Chem 2021; 64:958-979. [PMID: 33428419 DOI: 10.1021/acs.jmedchem.0c01026] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Janus kinase 1 (JAK1) plays a key role in most cytokine-mediated inflammatory and autoimmune responses through JAK/STAT signaling; thus, JAK1 inhibition is a promising therapeutic strategy for several diseases. Analysis of the binding modes of current JAK inhibitors to JAK isoforms allowed the design of N-alkyl-substituted 1-H-pyrrolo[2,3-b] pyridine carboxamide as a JAK1-selective scaffold, and the synthesis of various methyl amide derivatives provided 4-((cis-1-(4-chlorobenzyl)-2-methylpiperidin-4-yl)amino)-N-methyl-1H-pyrrolo[2,3-b]pyridine-5-carboxamide (31g) as a potent JAK1-selective inhibitor. In particular, the (S,S)-enantiomer of 31g (38a) exhibited excellent potency for JAK1 and selectivity over JAK2, JAK3, and TYK2. On investigating the effect of 31g on hepatic fibrosis, it was found that it reduces the proliferation and fibrogenic gene expression of TGF-β-induced hepatic stellate cells (HSCs). Specifically, 31g significantly inhibited TGF-β-induced migration of HSCs at 0.25 μM in wound-healing assays.
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Affiliation(s)
- Eunsun Park
- College of Pharmacy and Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul 03760, Republic of Korea
| | - Sun Joo Lee
- New Drug Development Center, Daegu-Gyeongbuk Medical Innovation Foundation (DGMIF), Daegu 41061, Republic of Korea
| | - Heegyum Moon
- New Drug Development Center, Daegu-Gyeongbuk Medical Innovation Foundation (DGMIF), Daegu 41061, Republic of Korea
| | - Jongmi Park
- College of Pharmacy and Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul 03760, Republic of Korea
| | - Hyeonho Jeon
- New Drug Development Center, Daegu-Gyeongbuk Medical Innovation Foundation (DGMIF), Daegu 41061, Republic of Korea
| | - Ji Sun Hwang
- New Drug Development Center, Daegu-Gyeongbuk Medical Innovation Foundation (DGMIF), Daegu 41061, Republic of Korea
| | - Hayoung Hwang
- New Drug Development Center, Daegu-Gyeongbuk Medical Innovation Foundation (DGMIF), Daegu 41061, Republic of Korea
| | - Ki Bum Hong
- New Drug Development Center, Daegu-Gyeongbuk Medical Innovation Foundation (DGMIF), Daegu 41061, Republic of Korea
| | - Seung-Hee Han
- Central Research Laboratory, KOREA PHARMA Co. Ltd, jeyakgongdan 3-gil, Hyangnam-eup, Hwaseong-si, Gyeonggi-do 18622, Republic of Korea
| | - Sun Choi
- College of Pharmacy and Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul 03760, Republic of Korea
| | - Soosung Kang
- College of Pharmacy and Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul 03760, Republic of Korea
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Abstract
INTRODUCTION The JAK kinases are a family of four tyrosine receptor kinases that play a pivotal role in cytokine receptor signalling pathways via their interaction with signal transducers and activators of transcription proteins. Selective inhibitors of JAK kinases are viewed as of considerable potential as disease-modifying anti-inflammatory drugs for the treatment of rheumatoid arthritis. AREAS COVERED This article provides a review of the clinical development and available clinical results for those JAK inhibitors currently under investigation. Phase II data for four JAK inhibitors (baricitinib, decernotinib, filgotinib and INCB-039110) are contrasted with that reported for the recently approved JAK inhibitor tofacitinib. The preclinical data on these, in addition to peficitinib, ABT-494, INCB-047986 and AC-410 are also discussed, as are some of the inhibitors in preclinical development. EXPERT OPINION JAK inhibitors are effective in the treatment of rheumatoid arthritis as evidenced by several inhibitors enabling the majority of treated patients to achieve ACR20 responses, with baricitinib and INCB-039110 both effective when administered once daily. JAK inhibitors differ in isoform specificity profiles, with good efficacy achievable by selective inhibition of either JAK1 (filgotinib or INCB-039110) or JAK3 (decernotinib). It remains to be seen what selectivity provides the optimal side-effect profile and to what extent inhibition of JAK2 should be avoided.
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Affiliation(s)
- Peter Norman
- Norman Consulting , 18 Pink Lane, Burnham, Bucks, SL1 8JW , UK
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