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Long L, Zhang H, Zhou Z, Duan L, Fan D, Wang R, Xu S, Qiao D, Zhu W. Pyrrole-containing hybrids as potential anticancer agents: An insight into current developments and structure-activity relationships. Eur J Med Chem 2024; 273:116470. [PMID: 38762915 DOI: 10.1016/j.ejmech.2024.116470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 04/28/2024] [Accepted: 04/29/2024] [Indexed: 05/21/2024]
Abstract
Cancer poses a significant threat to human health. Therefore, it is urgent to develop potent anti-cancer drugs with excellent inhibitory activity and no toxic side effects. Pyrrole and its derivatives are privileged heterocyclic compounds with significant diverse pharmacological effects. These compounds can target various aspects of cancer cells and have been applied in clinical settings or are undergoing clinical trials. As a result, pyrrole has emerged as a promising drug scaffold and has been further probed to get novel entities for the treatment of cancer. This article reviews recent research progress on anti-cancer drugs containing pyrrole. It focuses on the mechanism of action, biological activity, and structure-activity relationships of pyrrole derivatives, aiming to assist in designing and synthesizing innovative pyrrole-based anti-cancer compounds.
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Affiliation(s)
- Li Long
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, 605 Fenglin Road, Nanchang, Jiangxi, 330013, China
| | - Han Zhang
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, 605 Fenglin Road, Nanchang, Jiangxi, 330013, China
| | - ZhiHui Zhou
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, 605 Fenglin Road, Nanchang, Jiangxi, 330013, China
| | - Lei Duan
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, 605 Fenglin Road, Nanchang, Jiangxi, 330013, China
| | - Dang Fan
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, 605 Fenglin Road, Nanchang, Jiangxi, 330013, China
| | - Ran Wang
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, 605 Fenglin Road, Nanchang, Jiangxi, 330013, China
| | - Shan Xu
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, 605 Fenglin Road, Nanchang, Jiangxi, 330013, China.
| | - Dan Qiao
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, 605 Fenglin Road, Nanchang, Jiangxi, 330013, China.
| | - Wufu Zhu
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, 605 Fenglin Road, Nanchang, Jiangxi, 330013, China.
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2
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Ahmadi S, Lotfi S, Afshari S, Kumar P, Ghasemi E. CORAL: Monte Carlo based global QSAR modelling of Bruton tyrosine kinase inhibitors using hybrid descriptors. SAR AND QSAR IN ENVIRONMENTAL RESEARCH 2021; 32:1013-1031. [PMID: 34875951 DOI: 10.1080/1062936x.2021.2003429] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 11/03/2021] [Indexed: 06/13/2023]
Abstract
Global QSAR modelling was performed to predict the pIC50 values of 233 diverse heterocyclic compounds as BTK inhibitors with the Monte Carlo algorithm of CORAL software using the DCW hybrid descriptors extracted from SMILES notations of molecules. The dataset of 233 BTK inhibitors was randomly split into training, invisible training, calibration and validation sets. The index of ideality of correlation was also applied to build and judge the predictability of the QSAR models. Eight global QSAR models based on the hybrid optimal descriptor using two target functions, i.e. TF1 (WIIC = 0) and TF2 (WIIC = 0.2) have been constructed. The statistical parameters of QSAR models computed by TF2 are more reliable and robust and were used to predict the pIC50 values. The model constructed for split 4 via TF2 is regarded as the best model and the numerical values of r2Train, r2Valid, Q2Train and Q2Valid are equal to 0.7981, 0.7429, 0.7898 and 0.6784, respectively. By internal and external validation techniques, the predictability and reliability of the designed models have been assessed. The structural attributes responsible for the increase and decrease of pIC50 of BTK inhibitors were also identified.
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Affiliation(s)
- S Ahmadi
- Department of Pharmaceutical Chemistry, Faculty of Pharmaceutical Chemistry, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - S Lotfi
- Department of Chemistry, Payame Noor University (PNU), Tehran, Iran
| | - S Afshari
- Department of Medicinal Chemistry, Faculty of Pharmacy, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - P Kumar
- Department of Chemistry, Kurukshetra University, Kurukshetra, Haryana, India
| | - E Ghasemi
- Department of Pharmaceutical Chemistry, Faculty of Pharmaceutical Chemistry, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
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3
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Saigal, Ghanem YSA, Uddin A, Khan S, Abid M, Khan MM. Synthesis, Biological Evaluation and Docking Studies of Functionalized Pyrrolo[3,4‐
b
]pyridine Derivatives. ChemistrySelect 2021. [DOI: 10.1002/slct.202004781] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Saigal
- Department of Chemistry Aligarh Muslim University Aligarh 202002, U.P India
| | | | - Amad Uddin
- Medicinal Chemistry Laboratory Department of Biosciences, Jamia Millia Islamia New Delhi India 110025
| | - Sarfaraz Khan
- Department of Chemistry Aligarh Muslim University Aligarh 202002, U.P India
| | - Mohammad Abid
- Medicinal Chemistry Laboratory Department of Biosciences, Jamia Millia Islamia New Delhi India 110025
| | - Md. Musawwer Khan
- Department of Chemistry Aligarh Muslim University Aligarh 202002, U.P India
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4
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Motati DR, Amaradhi R, Ganesh T. Recent developments in the synthesis of azaindoles from pyridine and pyrrole building blocks. Org Chem Front 2021. [DOI: 10.1039/d0qo01079k] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The azaindole framework is ubiquitous in bioactive natural products and pharmaceuticals. This review highlights the synthetic approaches to azaindoles with advantages and limitations, mechanistic pathways and biological importance.
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Affiliation(s)
- Damoder Reddy Motati
- Department of Pharmacology and Chemical Biology
- Emory School of Medicine
- Atlanta
- USA
| | - Radhika Amaradhi
- Department of Pharmacology and Chemical Biology
- Emory School of Medicine
- Atlanta
- USA
| | - Thota Ganesh
- Department of Pharmacology and Chemical Biology
- Emory School of Medicine
- Atlanta
- USA
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5
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Dong XD, Zhang M, Ma X, Wang JQ, Lei ZN, Teng QX, Li YD, Lin L, Feng W, Chen ZS. Bruton's Tyrosine Kinase (BTK) Inhibitor RN486 Overcomes ABCB1-Mediated Multidrug Resistance in Cancer Cells. Front Cell Dev Biol 2020; 8:865. [PMID: 32984343 PMCID: PMC7481333 DOI: 10.3389/fcell.2020.00865] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 08/11/2020] [Indexed: 12/20/2022] Open
Abstract
Overexpression of ATP-binding cassette subfamily B member 1 (ABCB1) remains one of the most vital factors leading to multidrug resistance (MDR). It is important to enhance the effect and bioavailability of chemotherapeutic drugs that are substrates of ABCB1 transporter in ABCB1-overexpression cancer cells and reverse ABCB1-mediated MDR. Previous, we uncovered that the Bruton's tyrosine kinase (BTK) inhibitor ibrutinib is a potent reversal agent to overcomes paclitaxel resistance in ABCB1-overexpressing cells and tumors. In this study, we explored whether RN486, another BTK inhibitor, was competent to surmount ABCB1-mediated MDR and promote relevant cancer chemotherapy. We found that RN486 significantly increased the efficacy of paclitaxel and doxorubicin in both drug-selected carcinoma cells and transfected cells overexpressing ABCB1. Mechanistic studies indicated that RN486 dramatically attenuated the drug efflux activity of ABCB1 transporter without altering its expression level or subcellular localization. The ATPase activity of ABCB1 transporter was not affected by low concentrations but stimulated by high concentrations of RN486. Moreover, an interaction between RN486 with ABCB1 substrate-binding and inhibitor binding sites was verified by in silico docking simulation. The results from our study suggest that RN486 could be a reversal agent and could be used in the novel combination therapy with other antineoplastic drugs to conquer MDR-mediated by ABCB1 transporter in clinics.
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Affiliation(s)
- Xing-Duo Dong
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John’s University, Queens, NY, United States
| | - Meng Zhang
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John’s University, Queens, NY, United States
- First Clinical College, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Xiubin Ma
- Cell Research Center, Shenzhen Bolun Institute of Biotechnology, Shenzhen, China
| | - Jing-Quan Wang
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John’s University, Queens, NY, United States
| | - Zi-Ning Lei
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John’s University, Queens, NY, United States
| | - Qiu-Xu Teng
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John’s University, Queens, NY, United States
| | - Yi-Dong Li
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John’s University, Queens, NY, United States
| | - Lusheng Lin
- Cell Research Center, Shenzhen Bolun Institute of Biotechnology, Shenzhen, China
| | - Weiguo Feng
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John’s University, Queens, NY, United States
- College of Bioscience and Technology, Weifang Medical University, Weifang, China
| | - Zhe-Sheng Chen
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John’s University, Queens, NY, United States
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Sagitova EF, Tomilin DN, Petrova OV, Budaev AB, Sobenina LN, Trofimov BA, Yang GQ, Hu R. Acetylene based short route from 2,2,6,6-tetramethylpiperidin-4-one oxime to 2-(pyrazol-5-yl)-4,5,6,7-tetrahydropyrrolo[3,2-c]pyridines. MENDELEEV COMMUNICATIONS 2019. [DOI: 10.1016/j.mencom.2019.11.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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7
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Zhai Z, Li R, Bai X, Ning X, Lin Z, Zhao X, Jin Y, Yin Y. Design, synthesis and biological evaluation of novel dithiocarbamate-substituted diphenylaminopyrimidine derivatives as BTK inhibitors. Bioorg Med Chem 2019; 27:4124-4142. [DOI: 10.1016/j.bmc.2019.07.043] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Revised: 07/21/2019] [Accepted: 07/26/2019] [Indexed: 02/08/2023]
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8
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Wang Y, Huang W, Xin M, Chen P, Gui L, Zhao X, Zhu X, Luo H, Cong X, Wang J, Liu F. Discovery of potent anti-inflammatory 4-(4,5,6,7-tetrahydrofuro[3,2-c]pyridin-2-yl) pyrimidin-2-amines for use as Janus kinase inhibitors. Bioorg Med Chem 2019; 27:2592-2597. [PMID: 30926315 DOI: 10.1016/j.bmc.2019.03.048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 03/21/2019] [Accepted: 03/23/2019] [Indexed: 01/14/2023]
Abstract
The Janus kinase (JAK) family of tyrosine kinases has been proven to provide targeted immune modulation. Orally available JAK inhibitors have been used for the treatment of immune-mediated inflammatory diseases, such as rheumatoid arthritis (RA). Here, we report the design, synthesis and biological evaluation of 4-(4,5,6,7-tetrahydrofuro[3,2-c]pyridin-2-yl) pyrimidin-2-amino derivatives as JAK inhibitors. Systematic structure-activity relationship studies led to the discovery of compound 7j, which strongly inhibited the four isoforms of JAK kinases. Molecular modeling rationalized the importance of cyanoacetyl and phenylmorpholine moieties. The in vivo investigation indicated that compound 7j possessed favorable pharmacokinetic properties and displayed slightly better anti-inflammatory efficacy than tofacitinib at the same dosage. Accordingly, compound 7j was advanced into preclinical development.
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Affiliation(s)
- Yazhou Wang
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, PR China; Jiangsu Simcere Pharmaceutical Co. Ltd., Jiangsu Key Laboratory of Molecular Targeted Antitumor Drug Research, No 699-18, Xuanwu District, Nanjing 210042, PR China.
| | - Wei Huang
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, PR China; Jiangsu Simcere Pharmaceutical Co. Ltd., Jiangsu Key Laboratory of Molecular Targeted Antitumor Drug Research, No 699-18, Xuanwu District, Nanjing 210042, PR China.
| | - Minhang Xin
- Department of Medicinal Chemistry, School of Pharmacy, Health Science Center, Xi'an Jiaotong University, No 76, Yanta West Road, Xi'an 710061, PR China
| | - Pan Chen
- Jiangsu Simcere Pharmaceutical Co. Ltd., Jiangsu Key Laboratory of Molecular Targeted Antitumor Drug Research, No 699-18, Xuanwu District, Nanjing 210042, PR China; Nanjing Noratech Pharmaceutical Co. Ltd., No 9 Weidi Road, Jiangsu Life Park, Qixia District, Nanjing 210046, PR China
| | - Li Gui
- Jiangsu Simcere Pharmaceutical Co. Ltd., Jiangsu Key Laboratory of Molecular Targeted Antitumor Drug Research, No 699-18, Xuanwu District, Nanjing 210042, PR China; Nanjing Noratech Pharmaceutical Co. Ltd., No 9 Weidi Road, Jiangsu Life Park, Qixia District, Nanjing 210046, PR China
| | - Xinxin Zhao
- Jiangsu Simcere Pharmaceutical Co. Ltd., Jiangsu Key Laboratory of Molecular Targeted Antitumor Drug Research, No 699-18, Xuanwu District, Nanjing 210042, PR China; Nanjing Noratech Pharmaceutical Co. Ltd., No 9 Weidi Road, Jiangsu Life Park, Qixia District, Nanjing 210046, PR China
| | - Xinrong Zhu
- Jiangsu Simcere Pharmaceutical Co. Ltd., Jiangsu Key Laboratory of Molecular Targeted Antitumor Drug Research, No 699-18, Xuanwu District, Nanjing 210042, PR China
| | - Hongpeng Luo
- Jiangsu Simcere Pharmaceutical Co. Ltd., Jiangsu Key Laboratory of Molecular Targeted Antitumor Drug Research, No 699-18, Xuanwu District, Nanjing 210042, PR China
| | - Xin Cong
- Jiangsu Simcere Pharmaceutical Co. Ltd., Jiangsu Key Laboratory of Molecular Targeted Antitumor Drug Research, No 699-18, Xuanwu District, Nanjing 210042, PR China
| | - Jia Wang
- Jiangsu Simcere Pharmaceutical Co. Ltd., Jiangsu Key Laboratory of Molecular Targeted Antitumor Drug Research, No 699-18, Xuanwu District, Nanjing 210042, PR China
| | - Fei Liu
- Jiangsu Simcere Pharmaceutical Co. Ltd., Jiangsu Key Laboratory of Molecular Targeted Antitumor Drug Research, No 699-18, Xuanwu District, Nanjing 210042, PR China; Nanjing Noratech Pharmaceutical Co. Ltd., No 9 Weidi Road, Jiangsu Life Park, Qixia District, Nanjing 210046, PR China.
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9
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Jiang A, Liu Q, Wang R, Wei P, Dai Y, Wang X, Xu Y, Ma Y, Ai J, Shen J, Ding J, Xiong B. Structure-Based Discovery of a Series of 5H-Pyrrolo[2,3-b]pyrazine FGFR Kinase Inhibitors. Molecules 2018; 23:E698. [PMID: 29562726 PMCID: PMC6017193 DOI: 10.3390/molecules23030698] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 03/16/2018] [Accepted: 03/17/2018] [Indexed: 12/15/2022] Open
Abstract
Fibroblast growth factor receptors (FGFRs), a subfamily of receptor tyrosine kinases, are aberrant in various cancer types, and considered to be promising targets for cancer therapy. We started with a weak-active compound that was identified from our internal hepatocyte growth factor receptor (also called c-Met) inhibitor project, and optimized it with the guidance of a co-crystal structure of compound 8 with FGFR1. Through rational design, synthesis, and the biological evaluation of a series of 5H-pyrrolo[2,3-b]pyrazine derivatives, we discovered several potent FGFR kinase inhibitors. Among them, compound 13 displayed high selectivity and favorable metabolic properties, demonstrating a promising lead for further development.
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Affiliation(s)
- Alan Jiang
- College of Pharmacy, Nanchang University, 461 Bayi Avenue, Nanchang 330006, China.
- Division of Anti-Tumor Pharmacology, State Key Laboratory of Drug Research, Shanghai Institute of MateriaMedica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China.
| | - Qiufeng Liu
- Drug Design and Discovery Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China.
| | - Ruifeng Wang
- Key Laboratory of Structure-Based Drug Design and Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China.
- Department of Medicinal Chemistry, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China.
| | - Peng Wei
- Key Laboratory of Structure-Based Drug Design and Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China.
- Department of Medicinal Chemistry, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China.
| | - Yang Dai
- Division of Anti-Tumor Pharmacology, State Key Laboratory of Drug Research, Shanghai Institute of MateriaMedica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China.
| | - Xin Wang
- Department of Medicinal Chemistry, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China.
| | - Yechun Xu
- Drug Design and Discovery Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China.
| | - Yuchi Ma
- Department of Medicinal Chemistry, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China.
| | - Jing Ai
- Division of Anti-Tumor Pharmacology, State Key Laboratory of Drug Research, Shanghai Institute of MateriaMedica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China.
| | - Jingkang Shen
- Department of Medicinal Chemistry, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China.
| | - Jian Ding
- College of Pharmacy, Nanchang University, 461 Bayi Avenue, Nanchang 330006, China.
- Division of Anti-Tumor Pharmacology, State Key Laboratory of Drug Research, Shanghai Institute of MateriaMedica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China.
| | - Bing Xiong
- Department of Medicinal Chemistry, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China.
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10
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Discovery and evaluation of 1 H -pyrrolo[2,3- b ]pyridine based selective and reversible small molecule BTK inhibitors for the treatment of rheumatoid arthritis. Bioorg Med Chem Lett 2017; 27:1867-1873. [DOI: 10.1016/j.bmcl.2017.02.026] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Revised: 02/03/2017] [Accepted: 02/13/2017] [Indexed: 01/07/2023]
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11
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General methods for the synthesis and late-stage diversification of 2,4-substituted 7-azaindoles. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.09.029] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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12
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Rossi R, Lessi M, Manzini C, Marianetti G, Bellina F. Achievement of regioselectivity in transition metal-catalyzed direct C–H (hetero)arylation reactions of heteroarenes with one heteroatom through the use of removable protecting/blocking substituents or traceless directing groups. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.02.037] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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13
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Jiang YH, Xiao M, Yan CG. Convenient synthesis of functionalized pyrrolo[3,4-b]pyridines and pyrrolo[3,4-b]quinolines via three-component reactions. RSC Adv 2016. [DOI: 10.1039/c6ra03165j] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
A simple protocol for convenient construction of pyrrolo[3,4-b]pyridine skeleton was successfully developed by base promoted three-component reaction of β-enamino imide, aromatic aldehydes and malononitrile as well as its ester and amide derivatives.
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Affiliation(s)
- Yan-Hong Jiang
- College of Chemistry & Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- China
| | - Man Xiao
- College of Chemistry & Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- China
| | - Chao-Guo Yan
- College of Chemistry & Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- China
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14
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Wilding B, Vidovic C, Klempier N. A convenient synthetic route to substituted pyrrolo[2,3-b]pyridines via a novel ethylene-bridged compound. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.10.031] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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