1
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Guo H, Shen ZY, Yuan YY, Chen RF, Yang JY, Liu XC, Zhang Q, Pan QY, Ding JJ, He XJ, Zhang QN, Dong XW, Zhou KS. Discovery of a Novel and Potent LCK Inhibitor for Leukemia Treatment via Deep Learning and Molecular Docking. J Chem Inf Model 2024; 64:4835-4849. [PMID: 38847742 DOI: 10.1021/acs.jcim.4c00151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/25/2024]
Abstract
The lymphocyte-specific protein tyrosine kinase (LCK) plays a crucial role in both T-cell development and activation. Dysregulation of LCK signaling has been demonstrated to drive the oncogenesis of T-cell acute lymphoblastic leukemia (T-ALL), thus providing a therapeutic target for leukemia treatment. In this study, we introduced a sophisticated virtual screening strategy combined with biological evaluations to discover potent LCK inhibitors. Our initial approach involved utilizing the PLANET algorithm to assess and contrast various scoring methodologies suitable for LCK inhibitor screening. After effectively evaluating PLANET, we progressed to devise a virtual screening workflow that synergistically combines the strengths of PLANET with the capabilities of Schrödinger's suite. This integrative strategy led to the efficient identification of four potential LCK inhibitors. Among them, compound 1232030-35-1 stood out as the most promising candidate with an IC50 of 0.43 nM. Further in vitro bioassays revealed that 1232030-35-1 exhibited robust antiproliferative effects on T-ALL cells, which was attributed to its ability to suppress the phosphorylations of key molecules in the LCK signaling pathway. More importantly, 1232030-35-1 treatment demonstrated profound in vivo antileukemia efficacy in a human T-ALL xenograft model. In addition, complementary molecular dynamics simulations provided deeper insight into the binding kinetics between 1232030-35-1 and LCK, highlighting the formation of a hydrogen bond with Met319. Collectively, our study established a robust and effective screening strategy that integrates AI-driven and conventional methodologies for the identification of LCK inhibitors, positioning 1232030-35-1 as a highly promising and novel drug-like candidate for potential applications in treating T-ALL.
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Affiliation(s)
- Hao Guo
- Department of Hematology, The Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, Zhengzhou 450008, China
| | - Zhe-Yuan Shen
- Hangzhou Institute of Innovative Medicine, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
- Innovation Institute for Artificial Intelligence in Medicine, Zhejiang University, Hangzhou 310058, China
| | - Yong-Yi Yuan
- Department of Hematology, The Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, Zhengzhou 450008, China
- Academy of Medical Sciences, Zhengzhou University, Zhengzhou 450052, China
| | - Rou-Fen Chen
- Hangzhou Institute of Innovative Medicine, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
- Innovation Institute for Artificial Intelligence in Medicine, Zhejiang University, Hangzhou 310058, China
| | - Jing-Yi Yang
- Department of Hematology, The Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, Zhengzhou 450008, China
| | - Xing-Chen Liu
- Department of Hematology, The Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, Zhengzhou 450008, China
| | - Qing Zhang
- Department of Hematology, The Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, Zhengzhou 450008, China
| | - Qian-Ying Pan
- Department of Hematology, The Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, Zhengzhou 450008, China
| | - Jian-Jun Ding
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Xin-Jun He
- Hangzhou Institute of Innovative Medicine, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Qing-Nan Zhang
- Hangzhou Institute of Innovative Medicine, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Xiao-Wu Dong
- Hangzhou Institute of Innovative Medicine, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
- Innovation Institute for Artificial Intelligence in Medicine, Zhejiang University, Hangzhou 310058, China
| | - Ke-Shu Zhou
- Department of Hematology, The Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, Zhengzhou 450008, China
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2
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Fleming CL, Benitez-Martin C, Bernson E, Xu Y, Kristenson L, Inghardt T, Lundbäck T, Thorén FB, Grøtli M, Andréasson J. All-photonic kinase inhibitors: light-controlled release-and-report inhibition. Chem Sci 2024; 15:6897-6905. [PMID: 38725520 PMCID: PMC11077529 DOI: 10.1039/d4sc00390j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Accepted: 04/05/2024] [Indexed: 05/12/2024] Open
Abstract
Light-responsive molecular tools targeting kinases affords one the opportunity to study the underlying cellular function of selected kinases. In efforts to externally control lymphocyte-specific protein tyrosine kinase (LCK) activity, the development of release-and-report LCK inhibitors is described, in which (i) the release of the active kinase inhibitor can be controlled externally with light; and (ii) fluorescence is employed to report both the release and binding of the active kinase inhibitor. This introduces an unprecedented all-photonic method for users to both control and monitor real-time inhibitory activity. A functional cellular assay demonstrated light-mediated LCK inhibition in natural killer cells. The use of coumarin-derived caging groups resulted in rapid cellular uptake and non-specific intracellular localisation, while a BODIPY-derived caging group predominately localised in the cellular membrane. This concept of release-and-report inhibitors has the potential to be extended to other biorelevant targets where both spatiotemporal control in a cellular setting and a reporting mechanism would be beneficial.
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Affiliation(s)
- Cassandra L Fleming
- Department of Chemistry and Chemical Engineering, Physical Chemistry, Chalmers University of Technology SE-41296 Göteborg Sweden
- Department of Chemistry and Molecular Biology, University of Gothenburg Box 462 SE-40530 Göteborg Sweden
| | - Carlos Benitez-Martin
- Department of Chemistry and Chemical Engineering, Physical Chemistry, Chalmers University of Technology SE-41296 Göteborg Sweden
| | - Elin Bernson
- TIMM Laboratory at Sahlgrenska Centre for Cancer Research, Department of Obstetrics and Gynecology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg SE-41296 Göteborg Sweden
| | - Yongjin Xu
- Department of Chemistry and Molecular Biology, University of Gothenburg Box 462 SE-40530 Göteborg Sweden
| | - Linnea Kristenson
- TIMM Laboratory, Sahlgrenska Centre for Cancer Research, Department of Infectious Diseases, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg SE-41296 Göteborg Sweden
| | - Tord Inghardt
- Cardiovascular, Renal and Metabolism, Innovative Medicines and Early Development, AstraZeneca SE-43183 Mölndal Sweden
| | - Thomas Lundbäck
- Mechanistic and Structural Biology, Discovery Sciences, R&D, AstraZeneca SE-43183 Mölndal Sweden
| | - Fredrik B Thorén
- TIMM Laboratory, Sahlgrenska Centre for Cancer Research, Department of Medical Biochemistry and Cell Biology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg SE-41296 Göteborg Sweden
| | - Morten Grøtli
- Department of Chemistry and Molecular Biology, University of Gothenburg Box 462 SE-40530 Göteborg Sweden
| | - Joakim Andréasson
- Department of Chemistry and Chemical Engineering, Physical Chemistry, Chalmers University of Technology SE-41296 Göteborg Sweden
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3
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Mokariya JA, Rajani DP, Patel MP. 1,2,4‐Triazole and benzimidazole fused dihydropyrimidine derivatives: Design, green synthesis, antibacterial, antitubercular, and antimalarial activities. Arch Pharm (Weinheim) 2022; 356:e2200545. [PMID: 36534897 DOI: 10.1002/ardp.202200545] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 11/23/2022] [Accepted: 11/30/2022] [Indexed: 12/23/2022]
Abstract
This study reports the design and synthesis of novel 1,2,4-triazolo/benzimidazolo-pyrimidine linked 1-benzyl-4-[(p-tolyloxy)methyl]-1,2,3-triazole derivatives as potent antimicrobial agents according to their in vitro antibacterial, antifungal, antitubercular as well as antimalarial activities. An efficient, ecologically benign, and facile multicomponent synthesis was employed to synthesize these derivatives. The synthesis is accelerated with the mild and eco-friendly organocatalyst tetrabutylammonium bromide, providing a yield of 82%-96% within the short reaction time of 0.5-1.5 h. Compared with the MIC values of ciprofloxacin and ampicillin on the respective strains, compound d2 showed better activity against Escherichia coli and Streptococcus pyogenes and compound d8 showed better MIC against Staphylococcus aureus. Additionally, compounds d3, d4, and d5 showed potent MIC values against Pseudomonas aeruginosa. All triazolo-pyrimidine derivatives d1-d8 showed potent inhibitory action against Gram-positive strains. Compound e3 showed good potency against Mycobacterium tuberculosis H37Rv. The IC50 values of d3 and e2 indicated better activity against Plasmodium falciparum. Collectively, these derivatives depict potent multifaceted activity and provide promising access for further antimicrobial and antimalarial investigations.
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Affiliation(s)
| | - Dhanji P. Rajani
- Microcare Laboratory and Tuberculosis Research Centre, Haripura Surat Gujarat India
| | - Manish P. Patel
- Department of Chemistry Sardar Patel University Anand Gujarat India
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4
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Synthesis of novel pyrimido[4,5-d]pyrimidine derivatives from 5-acetyl-4-aminopyrimidines. Chem Heterocycl Compd (N Y) 2022. [DOI: 10.1007/s10593-022-03078-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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5
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CrkII/Abl phosphorylation cascade is critical for NLRC4 inflammasome activity and is blocked by Pseudomonas aeruginosa ExoT. Nat Commun 2022; 13:1295. [PMID: 35277504 PMCID: PMC8917168 DOI: 10.1038/s41467-022-28967-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Accepted: 02/22/2022] [Indexed: 11/17/2022] Open
Abstract
Type 3 Secretion System (T3SS) is a highly conserved virulence structure that plays an essential role in the pathogenesis of many Gram-negative pathogenic bacteria, including Pseudomonas aeruginosa. Exotoxin T (ExoT) is the only T3SS effector protein that is expressed in all T3SS-expressing P. aeruginosa strains. Here we show that T3SS recognition leads to a rapid phosphorylation cascade involving Abl / PKCδ / NLRC4, which results in NLRC4 inflammasome activation, culminating in inflammatory responses that limit P. aeruginosa infection in wounds. We further show that ExoT functions as the main anti-inflammatory agent for P. aeruginosa in that it blocks the phosphorylation cascade through Abl / PKCδ / NLRC4 by targeting CrkII, which we further demonstrate to be important for Abl transactivation and NLRC4 inflammasome activation in response to T3SS and P. aeruginosa infection. Pseudomonas aeruginosa secretes the toxin ExoT, which is important for pathogenesis. Here, the authors show that ExoT inhibits NLRC4-dependent inflammatory responses during wound infection.
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6
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Datta K, Mitra B, Sharma BS, Ghosh P. One‐pot Three‐component Solvent‐free Tandem Annulations for Synthesis of Tetrazolo[1,2‐
a
]pyrimidine and [1,2,4]triazolo[1,5‐
a
]pyrimidine. ChemistrySelect 2022. [DOI: 10.1002/slct.202103602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Kumaresh Datta
- Department of Chemistry University of North Bengal Dist. Darjeeling West Bengal India
| | - Bijeta Mitra
- Department of Chemistry University of North Bengal Dist. Darjeeling West Bengal India
| | - Biswajit Shil Sharma
- Department of Chemistry University of North Bengal Dist. Darjeeling West Bengal India
| | - Pranab Ghosh
- Department of Chemistry University of North Bengal Dist. Darjeeling West Bengal India
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7
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Basyouni WM, Abbas SY, Abdelazeem NM, El-Bayouki KAM, El-Kady MY. Synthesis of Novel Diastereomer Pyrimido[1,2-a]Benzimidazoles by Using Silica Sulfuric Acid/Ethylene Glycol. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2026987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Wahid M. Basyouni
- Organometallic and Organometalloid Chemistry Department, National Research Centre, Cairo, Egypt
| | - Samir Y. Abbas
- Organometallic and Organometalloid Chemistry Department, National Research Centre, Cairo, Egypt
| | - Nagwa M. Abdelazeem
- Organometallic and Organometalloid Chemistry Department, National Research Centre, Cairo, Egypt
| | - Khairy A. M. El-Bayouki
- Organometallic and Organometalloid Chemistry Department, National Research Centre, Cairo, Egypt
| | - Mohamed Y. El-Kady
- Chemistry Department, Faculty of Science, Ain Shams University, Cairo, Egypt
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8
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Moussa A, Rahmati A. One-Pot Synthesis of Benzo[4,5]imidazo[1,2-a]pyrimidin-2-ones Using a Hybrid Catalyst Supported on Magnetic Nanoparticles in Green Solvents. ChemistryOpen 2021; 10:764-774. [PMID: 34351084 PMCID: PMC8340068 DOI: 10.1002/open.202100063] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 05/09/2021] [Indexed: 01/11/2023] Open
Abstract
The conversion of soluble polyoxometalate into insoluble polyoxometalate is considered to be one of the major challenges in synthetic organic chemistry. Here, polyoxometalate was bonded to the salt part of an organic branch immobilized on the silica-coated Fe3 O4 nanoparticle and characterized using various techniques. The fabricated complex was used as a heterogeneous catalyst in a novel one-pot reaction for synthesis of benzo[4,5]imidazo[1,2-a]pyrimidin-2-ones using aromatic amines, dimethyl acetylenedicarboxylate (DMAD), derivatives of benzaldehyde and 2-aminobenzimidazole in water/ethanol as a green solvent. 21 derivatives of benzo[4,5]imidazo[1,2-a]pyrimidin-2-one were synthesized by this method and fully characterized. The high stability of the catalyst showed that it can be reused for 6 times without decreasing in activity. The combination of new synthetic method, new ferromagnetic heterogeneous nano-catalyst, green solvent and simple separation method were presented in this work.
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Affiliation(s)
| | - Abbas Rahmati
- Department of ChemistryUniversity of IsfahanP. O. Box81746-73441IsfahanIran
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9
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Veerasamy R, Roy A, Karunakaran R, Rajak H. Structure-Activity Relationship Analysis of Benzimidazoles as Emerging Anti-Inflammatory Agents: An Overview. Pharmaceuticals (Basel) 2021; 14:ph14070663. [PMID: 34358089 PMCID: PMC8308831 DOI: 10.3390/ph14070663] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Revised: 07/07/2021] [Accepted: 07/09/2021] [Indexed: 11/16/2022] Open
Abstract
A significant number of the anti-inflammatory drugs currently in use are becoming obsolete. These are exceptionally hazardous for long-term use because of their possible unfavourable impacts. Subsequently, in the ebb-and-flow decade, analysts and researchers are engaged in developing new anti-inflammatory drugs, and many such agents are in the later phases of clinical trials. Molecules with heterocyclic nuclei are similar to various natural antecedents, thus acquiring immense consideration from scientific experts and researchers. The arguably most adaptable heterocyclic cores are benzimidazoles containing nitrogen in a bicyclic scaffold. Numerous benzimidazole drugs are broadly used in the treatment of numerous diseases, showing promising therapeutic potential. Benzimidazole derivatives exert anti-inflammatory effects mainly by interacting with transient receptor potential vanilloid-1, cannabinoid receptors, bradykinin receptors, specific cytokines, 5-lipoxygenase activating protein and cyclooxygenase. Literature on structure–activity relationship (SAR) and investigations of benzimidazoles highlight that the substituent’s tendency and position on the benzimidazole ring significantly contribute to the anti-inflammatory activity. Reported SAR analyses indicate that substitution at the N1, C2, C5 and C6 positions of the benzimidazole scaffold greatly influence the anti-inflammatory activity. For example, benzimidazole substituted with anacardic acid on C2 inhibits COX-2, and 5-carboxamide or sulfamoyl or sulfonyl benzimidazole antagonises the cannabinoid receptor, whereas the C2 diarylamine and C3 carboxamide substitution of the benzimidazole scaffold result in antagonism of the bradykinin receptor. In this review, we examine the insights regarding the SARs of anti-inflammatory benzimidazole compounds, which will be helpful for researchers in designing and developing potential anti-inflammatory drugs to target inflammation-promoting enzymes.
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Affiliation(s)
- Ravichandran Veerasamy
- Pharmaceutical Chemistry Unit, Faculty of Pharmacy, AIMST University, Semeling 08100, Kedah, Malaysia
- Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Chennai 600077, Tamil Nadu, India
- Correspondence:
| | - Anitha Roy
- Department of Pharmacology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Chennai 600077, Tamil Nadu, India;
| | | | - Harish Rajak
- SLT Institute of Pharmaceutical Sciences, Guru Ghasidas University, Bilaspur 495009, India;
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10
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Elkamhawy A, Ali EMH, Lee K. New horizons in drug discovery of lymphocyte-specific protein tyrosine kinase (Lck) inhibitors: a decade review (2011-2021) focussing on structure-activity relationship (SAR) and docking insights. J Enzyme Inhib Med Chem 2021; 36:1574-1602. [PMID: 34233563 PMCID: PMC8274522 DOI: 10.1080/14756366.2021.1937143] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Lymphocyte-specific protein tyrosine kinase (Lck), a non-receptor Src family kinase, has a vital role in various cellular processes such as cell cycle control, cell adhesion, motility, proliferation, and differentiation. Lck is reported as a key factor regulating the functions of T-cell including the initiation of TCR signalling, T-cell development, in addition to T-cell homeostasis. Alteration in expression and activity of Lck results in numerous disorders such as cancer, asthma, diabetes, rheumatoid arthritis, atherosclerosis, and neuronal diseases. Accordingly, Lck has emerged as a novel target against different diseases. Herein, we amass the research efforts in literature and pharmaceutical patents during the last decade to develop new Lck inhibitors. Additionally, structure-activity relationship studies (SAR) and docking models of these new inhibitors within the active site of Lck were demonstrated offering deep insights into their different binding modes in a step towards the identification of more potent, selective, and safe Lck inhibitors.
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Affiliation(s)
- Ahmed Elkamhawy
- College of Pharmacy, Dongguk University-Seoul, Goyang, Republic of Korea.,Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - Eslam M H Ali
- Center for Biomaterials, Korea Institute of Science & Technology (KIST School), Seoul, Republic of Korea.,University of Science & Technology (UST), Daejeon, Republic of Korea.,Pharmaceutical Chemistry Department, Faculty of Pharmacy, Modern University for Technology and Information (MTI), Cairo, Egypt
| | - Kyeong Lee
- College of Pharmacy, Dongguk University-Seoul, Goyang, Republic of Korea
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11
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Sang W, Gong Y, Cheng H, Zhang R, Yuan Y, Fan G, Wang Z, Chen C, Verpoort F. Transition‐Metal‐Free Base‐Controlled C−N Coupling Reactions: Selective MonoVersusDiarylation of Primary Amines with 2‐Chlorobenzimidazoles. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001365] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Wei Sang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology 122 Luoshi Road Wuhan 430070 People's Republic of China
- School of Materials Science and Engineering Wuhan University of Technology 122 Luoshi Road Wuhan 430070 People's Republic of China
| | - Yan‐Yan Gong
- State Key Laboratory of Biobased Material and Green Papermaking Qilu University of Technology Shandong Academy of Sciences Jinan People's Republic of China
| | - Hua Cheng
- Department of Chemical Engineering and Food Science Hubei University of Arts and Science 296 Longzhong Road Xiangyang 441053 People's Republic of China
| | - Rui Zhang
- Department of Chemical Engineering and Food Science Hubei University of Arts and Science 296 Longzhong Road Xiangyang 441053 People's Republic of China
| | - Ye Yuan
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology 122 Luoshi Road Wuhan 430070 People's Republic of China
| | - Guang‐Gao Fan
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology 122 Luoshi Road Wuhan 430070 People's Republic of China
| | - Zhi‐Qin Wang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology 122 Luoshi Road Wuhan 430070 People's Republic of China
| | - Cheng Chen
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology 122 Luoshi Road Wuhan 430070 People's Republic of China
| | - Francis Verpoort
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology 122 Luoshi Road Wuhan 430070 People's Republic of China
- National Research Tomsk Polytechnic University Lenin Avenue 30 Tomsk 634050 Russian Federation
- Ghent University - Global Campus 119 Songdomunhwa-Ro, Yeonsu-Gu Incheon 21985 Korea
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12
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Monier M, Abdel-Latif D, El-Mekabaty A, Elattar KM. Bicyclic 6 + 6 Systems: Advances in the Chemistry of Heterocyclic Compounds Incorporated Pyrimido[1,2-a]Pyrimidine Skeleton. MINI-REV ORG CHEM 2020. [DOI: 10.2174/1389557519666190925161145] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The present review has highlighted the chemistry of pyrimido[1,2-a]pyrimidine compounds as one of the most important classes of heterocyclic systems. The main sections include: (1) The synthesis of pyrimido[1,2-a]pyrimidines, (2) reactivity of the substituents attached to the carbon and nitrogen atoms of the ring and (3) biological applications. A discussion demonstrated that the proposed mechanisms of unexpected synthetic routes were intended. The purpose of this review is to provide an overview of the chemistry of pyrimido[1,2-a]pyrimidines to date, in which the compounds should be widely applied in medicinal and pharmaceutical chemistry based on the significant, variable and potent biological results of pyrimidopyrimidine and pyridopyrimidine analogs. This survey will assist scientists in the organic and medicinal chemistry fields to design and develop procedures for the construction of new standard biological compounds.
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Affiliation(s)
- Mohamed Monier
- Chemistry Department, Faculty of Science, Mansoura University, El-Gomhoria Street, Mansoura, 35516, Egypt
| | - Doaa Abdel-Latif
- Chemistry Department, Faculty of Science, Mansoura University, El-Gomhoria Street, Mansoura, 35516, Egypt
| | - Ahmed El-Mekabaty
- Chemistry Department, Faculty of Science, Mansoura University, El-Gomhoria Street, Mansoura, 35516, Egypt
| | - Khaled M. Elattar
- Chemistry Department, Faculty of Science, Mansoura University, El-Gomhoria Street, Mansoura, 35516, Egypt
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13
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Basyouni WM, Abdelazeem NM, Abbas SY, El-Bayouki KAM, El-kady MY. Silica Sulfuric Acid/Ethylene Glycol: An Efficient Eco-Friendly Catalyst for One-Pot Synthesis of New Benzo[4,5]imidazo[1,2-a]pyrimidines. ORG PREP PROCED INT 2020. [DOI: 10.1080/00304948.2020.1761692] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Wahid M. Basyouni
- Organometallic and Organometalloid Chemistry Department, National Research Centre, Cairo, Egypt
| | - Nagwa M. Abdelazeem
- Organometallic and Organometalloid Chemistry Department, National Research Centre, Cairo, Egypt
| | - Samir Y. Abbas
- Organometallic and Organometalloid Chemistry Department, National Research Centre, Cairo, Egypt
| | - Khairy A. M. El-Bayouki
- Organometallic and Organometalloid Chemistry Department, National Research Centre, Cairo, Egypt
| | - Mohamed Y. El-kady
- Chemistry Department, Faculty of Science, Ain Shams University, Cairo, Egypt
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14
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Elattar KM, Mert BD, Monier M, El-Mekabaty A. Advances in the chemical and biological diversity of heterocyclic systems incorporating pyrimido[1,6- a]pyrimidine and pyrimido[1,6- c]pyrimidine scaffolds. RSC Adv 2020; 10:15461-15492. [PMID: 35558641 PMCID: PMC9092958 DOI: 10.1039/d0ra00411a] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 03/20/2020] [Indexed: 12/17/2022] Open
Abstract
Heterocycles incorporating a pyrimidopyrimidine scaffold have aroused great interest from researchers in the field of medical chemistry because of their privileged biological activities; they are used as anti-bacterial, antiviral, anti-tumor, anti-allergic, antihypertensive, anticancer, and hepatoprotective agents. Therefore, the present study aims to investigate the chemistry of heterocycles incorporating pyrimido[1,6-a]pyrimidine and pyrimido[1,6-c]pyrimidine skeletons and their biological characteristics. The main sections discuss (1) the synthetic routes to obtain substituted pyrimidopyrimidines, pyrimido[1,6-a]pyrimidin-diones, pyrimidoquinazolines, tricyclic, tetracyclic, and binary systems; (2) the reactivity of the substituents attached to the pyrimidopyrimidine skeleton, including thione and amide groups, nucleophilic substitutions, condensations, ring transformations, and coordination chemistry; (3) compounds of this class of heterocycles containing a significant characteristic scaffold and possessing a wide range of biological characteristics.
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Affiliation(s)
- Khaled M Elattar
- Chemistry Department, Faculty of Science, Mansoura University El-Gomhoria Street Mansoura 35516 Egypt +201010655354
| | - Başak Doğru Mert
- Adana Alparslan Türkeş Science and Technology University, Department of Energy Systems Engineering 01250 Adana Turkey
| | - M Monier
- Chemistry Department, Faculty of Science, Mansoura University El-Gomhoria Street Mansoura 35516 Egypt +201010655354
| | - Ahmed El-Mekabaty
- Chemistry Department, Faculty of Science, Mansoura University El-Gomhoria Street Mansoura 35516 Egypt +201010655354
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15
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An efficient route for the synthesis of N-(1H-benzo[d]imidazol-2-yl)benzamide derivatives promoted by CBr4 in one pot. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.130977] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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16
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Liu J, Morgan S, Hoover JM. Cobalt‐Catalyzed Aerobic Oxidative Cyclization of 2‐Aminoanilines with Isonitriles: Facile Access to 2‐Aminobenzimidazoles. ChemCatChem 2020. [DOI: 10.1002/cctc.201902011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Jiaqi Liu
- C. Eugene Bennett Department of Chemistry West Virginia University Morgantown WV 26506 USA
| | - Sarah Morgan
- C. Eugene Bennett Department of Chemistry West Virginia University Morgantown WV 26506 USA
| | - Jessica M. Hoover
- C. Eugene Bennett Department of Chemistry West Virginia University Morgantown WV 26506 USA
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17
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Fleming CL, Sandoz PA, Inghardt T, Önfelt B, Grøtli M, Andréasson J. A Fluorescent Kinase Inhibitor that Exhibits Diagnostic Changes in Emission upon Binding. Angew Chem Int Ed Engl 2019; 58:15000-15004. [PMID: 31411364 PMCID: PMC6851755 DOI: 10.1002/anie.201909536] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Indexed: 02/03/2023]
Abstract
The development of a fluorescent LCK inhibitor that exhibits favourable solvatochromic properties upon binding the kinase is described. Fluorescent properties were realised through the inclusion of a prodan-derived fluorophore into the pharmacophore of an ATP-competitive kinase inhibitor. Fluorescence titration experiments demonstrate the solvatochromic properties of the inhibitor, in which dramatic increase in emission intensity and hypsochromic shift in emission maxima are clearly observed upon binding LCK. Microscopy experiments in cellular contexts together with flow cytometry show that the fluorescence intensity of the inhibitor correlates with the LCK concentration. Furthermore, multiphoton microscopy experiments demonstrate both the rapid cellular uptake of the inhibitor and that the two-photon cross section of the inhibitor is amenable for excitation at 700 nm.
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Affiliation(s)
- Cassandra L. Fleming
- Department of Chemistry and Chemical EngineeringPhysical ChemistryChalmers University of Technology41296GöteborgSweden
- Department of Chemistry and Molecular BiologyUniversity of Gothenburg41296GöteborgSweden
| | - Patrick A. Sandoz
- Department of Applied PhysicsScience for Life LaboratoryKTH Royal Institute of Technology10691StockholmSweden
| | - Tord Inghardt
- Medicinal Chemistry, Research and Early Development Cardiovascular, Renal and Metabolism, BioPharmaceuticals R&DAstraZenecaGothenburgSweden
| | - Björn Önfelt
- Department of Applied PhysicsScience for Life LaboratoryKTH Royal Institute of Technology10691StockholmSweden
- Department of Microbiology, Tumor and Cell BiologyKarolinska Institute17177StockholmSweden
| | - Morten Grøtli
- Department of Chemistry and Molecular BiologyUniversity of Gothenburg41296GöteborgSweden
| | - Joakim Andréasson
- Department of Chemistry and Chemical EngineeringPhysical ChemistryChalmers University of Technology41296GöteborgSweden
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18
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Monier M, Abdel-Latif D, El-Mekabaty A, Elattar KM. Bicyclic 6 + 6 systems: the chemistry of pyrimido[4,5- d]pyrimidines and pyrimido[5,4- d]pyrimidines. RSC Adv 2019; 9:30835-30867. [PMID: 35558733 PMCID: PMC9092567 DOI: 10.1039/c9ra05687d] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 09/17/2019] [Indexed: 12/25/2022] Open
Abstract
The present study provides an overview of the chemistry and biological significance of pyrimido[4,5-d]pyrimidine and pyrimido[5,4-d]pyrimidine analogs as types of bicyclic [6 + 6] systems. The main sections include: (1) synthesis methods; (2) the reactivities of the substituents linked to the ring carbon and nitrogen atoms; and (3) biological applications. A discussion demonstrating the proposed mechanisms of unexpected synthetic routes is intended. The aim of this study is to discuss the synthetic significance of the titled compounds and to establish the biological characteristics of this class of compounds as studied to date, where the compounds have been applied on a large scale in the medical and pharmaceutical fields. This survey will help researchers in the fields of synthetic organic and medicinal chemistry to undertake and improve new approaches for the construction of new standard biological components.
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Affiliation(s)
- M Monier
- Chemistry Department, Faculty of Science, Taibah University Yanbu Al-Bahr Kingdom of Saudi Arabia
- Chemistry Department, Faculty of Science, Mansoura University El-Gomhoria Street Mansoura 35516 Egypt +201010655354
| | - Doaa Abdel-Latif
- Chemistry Department, Faculty of Science, Taibah University Yanbu Al-Bahr Kingdom of Saudi Arabia
- Chemistry Department, Faculty of Science, Mansoura University El-Gomhoria Street Mansoura 35516 Egypt +201010655354
| | - Ahmed El-Mekabaty
- Chemistry Department, Faculty of Science, Mansoura University El-Gomhoria Street Mansoura 35516 Egypt +201010655354
| | - Khaled M Elattar
- Chemistry Department, Faculty of Science, Mansoura University El-Gomhoria Street Mansoura 35516 Egypt +201010655354
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19
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Fleming CL, Sandoz PA, Inghardt T, Önfelt B, Grøtli M, Andréasson J. A Fluorescent Kinase Inhibitor that Exhibits Diagnostic Changes in Emission upon Binding. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201909536] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Cassandra L. Fleming
- Department of Chemistry and Chemical Engineering Physical Chemistry Chalmers University of Technology 41296 Göteborg Sweden
- Department of Chemistry and Molecular Biology University of Gothenburg 41296 Göteborg Sweden
| | - Patrick A. Sandoz
- Department of Applied Physics Science for Life Laboratory KTH Royal Institute of Technology 10691 Stockholm Sweden
| | - Tord Inghardt
- Medicinal Chemistry, Research and Early Development Cardiovascular, Renal and Metabolism, BioPharmaceuticals R&D AstraZeneca Gothenburg Sweden
| | - Björn Önfelt
- Department of Applied Physics Science for Life Laboratory KTH Royal Institute of Technology 10691 Stockholm Sweden
- Department of Microbiology, Tumor and Cell Biology Karolinska Institute 17177 Stockholm Sweden
| | - Morten Grøtli
- Department of Chemistry and Molecular Biology University of Gothenburg 41296 Göteborg Sweden
| | - Joakim Andréasson
- Department of Chemistry and Chemical Engineering Physical Chemistry Chalmers University of Technology 41296 Göteborg Sweden
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20
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Mekky AEM, Sanad SMH, Ahmed AAM. Microwave Assisted Three Component One‐pot Synthesis of Bis(aminoazolo[1,5‐
a
]pyrimidines) and Bis(aminoazino[1,2‐
a
]benzimidazoles) Bearing Thiazole Moiety. ChemistrySelect 2019. [DOI: 10.1002/slct.201902828] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ahmed E. M. Mekky
- Chemistry DepartmentFaculty of ScienceCairo University Giza 12613 Egypt
| | | | - Ahmed A. M. Ahmed
- Chemistry DepartmentFaculty of ScienceCairo University Giza 12613 Egypt
- Preparatory Year DeanshipJouf University Sakaka, KSA
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21
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3D-QSAR and molecular docking studies of aminopyrimidine derivatives as novel three-targeted Lck/Src/KDR inhibitors. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.02.071] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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22
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Hamidinasab M, Mobinikhaledi A. Organoacid-Decorated NiFe2
O4
Nanoparticles: An Efficient Catalyst for Green Synthesis of 2H
-Indazolo[2, 1-b]phthalazine-Triones and Pyrimido[1,2-a]benzimidazoles. ChemistrySelect 2019. [DOI: 10.1002/slct.201802413] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Mahdia Hamidinasab
- Department of Chemistry; Faculty of Science; Arak University; Arak 38156-88138 Iran
- Institute of Nanosciences and Nanotechnology; Arak University; Arak 38156-88138 Iran
| | - Akbar Mobinikhaledi
- Department of Chemistry; Faculty of Science; Arak University; Arak 38156-88138 Iran
- Institute of Nanosciences and Nanotechnology; Arak University; Arak 38156-88138 Iran
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23
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El Bakri Y, Anouar EH, Ramli Y, Essassi EM, Mague JT. Synthesis, crystal structure, spectroscopic characterization, Hirshfeld surface analysis, and DFT calculations of 1,4-dimethyl-2-oxo-pyrimido[1,2-a]benzimidazole hydrate. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.09.074] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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24
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Wang Y, Sun Y, Cao R, Liu D, Xie Y, Li L, Qi X, Huang N. In Silico Identification of a Novel Hinge-Binding Scaffold for Kinase Inhibitor Discovery. J Med Chem 2017; 60:8552-8564. [PMID: 28945083 DOI: 10.1021/acs.jmedchem.7b01075] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
To explore novel kinase hinge-binding scaffolds, we carried out structure-based virtual screening against p38α MAPK as a model system. With the assistance of developed kinase-specific structural filters, we identify a novel lead compound that selectively inhibits a panel of kinases with threonine as the gatekeeper residue, including BTK and LCK. These kinases play important roles in lymphocyte activation, which encouraged us to design novel kinase inhibitors as drug candidates for ameliorating inflammatory diseases and cancers. Therefore, we chemically modified our substituted triazole-class lead compound to improve the binding affinity and selectivity via a "minimal decoration" strategy, which resulted in potent and selective kinase inhibitors against LCK (18 nM) and BTK (8 nM). Subsequent crystallographic experiments validated our design. These rationally designed compounds exhibit potent on-target inhibition against BTK in B cells or LCK in T cells, respectively. Our work demonstrates that structure-based virtual screening can be applied to facilitate the development of novel chemical entities in crowded chemical space in the field of kinase inhibitor discovery.
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Affiliation(s)
- Yanli Wang
- National Institute of Biological Sciences, Beijing , No. 7 Science Park Road, Zhongguancun Life Science Park, Beijing 102206, China
| | - Yuze Sun
- National Institute of Biological Sciences, Beijing , No. 7 Science Park Road, Zhongguancun Life Science Park, Beijing 102206, China.,Peking University-Tsinghua University-National Institute of Biological Sciences Joint Graduate Program, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Ran Cao
- National Institute of Biological Sciences, Beijing , No. 7 Science Park Road, Zhongguancun Life Science Park, Beijing 102206, China
| | - Dan Liu
- National Institute of Biological Sciences, Beijing , No. 7 Science Park Road, Zhongguancun Life Science Park, Beijing 102206, China
| | - Yuting Xie
- National Institute of Biological Sciences, Beijing , No. 7 Science Park Road, Zhongguancun Life Science Park, Beijing 102206, China
| | - Li Li
- National Institute of Biological Sciences, Beijing , No. 7 Science Park Road, Zhongguancun Life Science Park, Beijing 102206, China
| | - Xiangbing Qi
- National Institute of Biological Sciences, Beijing , No. 7 Science Park Road, Zhongguancun Life Science Park, Beijing 102206, China
| | - Niu Huang
- National Institute of Biological Sciences, Beijing , No. 7 Science Park Road, Zhongguancun Life Science Park, Beijing 102206, China
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25
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Farag AK, Elkamhawy A, Londhe AM, Lee KT, Pae AN, Roh EJ. Novel LCK/FMS inhibitors based on phenoxypyrimidine scaffold as potential treatment for inflammatory disorders. Eur J Med Chem 2017; 141:657-675. [PMID: 29107425 DOI: 10.1016/j.ejmech.2017.10.003] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Revised: 05/19/2017] [Accepted: 10/02/2017] [Indexed: 01/24/2023]
Abstract
Tyrosine kinases including LCK and FMS are involved in inflammatory disorders as well as many types of cancer. Our team has designed and synthesized thirty novel pyrimidine based inhibitors targeting LCK, classified into four different series (amides, ureas, imines (Schiff base) and benzylamines). Twelve of them showed nanomolar IC50 values. Compound 7g showed excellent selectivity profile and was selectively potent over FMS kinase (IC50 value of 4.6 nM). Molecular docking study was performed to help us rationalize the obtained results and predict the possible binding mode for our compounds in both LCK and FMS. Based on the obtained biological assay data and modelling results, a detailed SAR study was discussed. As a further testing regarding the anti-inflammatory effect of the new compounds, in vitro cellular assay over RAW 264.7 macrophages was performed. Compound 7g exhibited excellent anti-inflammatory effect. Therefore, we report the design of novel phenoxypyrimidine derivatives as potent and selective LCK inhibitors and the discovery of 7g as potent and selective FMS/LCK dual inhibitor for the potential application in inflammatory disorders including rheumatoid arthritis (RA).
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Affiliation(s)
- Ahmed Karam Farag
- Chemical Kinomics Research Center, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea; Division of Bio-Medical Science &Technology, KIST School, Korea University of Science and Technology, Seoul 02792, Republic of Korea
| | - Ahmed Elkamhawy
- Chemical Kinomics Research Center, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea; Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - Ashwini M Londhe
- Division of Bio-Medical Science &Technology, KIST School, Korea University of Science and Technology, Seoul 02792, Republic of Korea; Convergence Research Center for Diagnosis, Treatment and Care System of Dementia, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea
| | - Kyung-Tae Lee
- Department of Life and Nanopharmaceutical Science, Kyung Hee University, Seoul 130-701, Republic of Korea
| | - Ae Nim Pae
- Division of Bio-Medical Science &Technology, KIST School, Korea University of Science and Technology, Seoul 02792, Republic of Korea; Convergence Research Center for Diagnosis, Treatment and Care System of Dementia, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea
| | - Eun Joo Roh
- Chemical Kinomics Research Center, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea; Division of Bio-Medical Science &Technology, KIST School, Korea University of Science and Technology, Seoul 02792, Republic of Korea.
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26
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Uncatalyzed synthesis of new substituted dihydro-2H-dipyrimido[1,2-a,4,5-d]pyrimidine-2,4(3H)-dione. RESEARCH ON CHEMICAL INTERMEDIATES 2017. [DOI: 10.1007/s11164-017-2868-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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27
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Alizadeh A, Vahabi AH, Bazgir A, Khavasi HR, Zhu Z, Zhu LG. Determinative role of ring size and substituents in highly selective synthesis of functionalized bicyclic guanidine and tetra substituted thiophene derivatives based on salt adducts afforded by cyclic thioureas and ketene dithioacetal. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.01.031] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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28
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Dam B, Pal AK, Gupta A. Nano-Fe3O4@silica sulfuric acid as a reusable and magnetically separable potent solid acid catalyst in Biginelli-type reaction for the one-pot multicomponent synthesis of fused dihydropyrimidine derivatives: A greener NOSE and SFRC approach. SYNTHETIC COMMUN 2016. [DOI: 10.1080/00397911.2015.1135955] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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29
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Liu M, Li J, Chai H, Zhang K, Yang D, Zhang Q, Shi D. A convenient four-component one-pot strategy toward the synthesis of pyrazolo[3,4-d]pyrimidines. Beilstein J Org Chem 2015; 11:2125-31. [PMID: 26664633 PMCID: PMC4660965 DOI: 10.3762/bjoc.11.229] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Accepted: 10/29/2015] [Indexed: 01/23/2023] Open
Abstract
An efficient one-pot synthesis of pyrazolo[3,4-d]pyrimidine derivatives by the four-component condensation of hydrazines, methylenemalononitriles, aldehydes and alcohols has been developed via two different reaction pathways. The structures of target products were characterized by IR spectroscopy, NMR (1H and 13C) spectroscopy and HRMS (ESI) spectrometry. The crystal structure of 4-ethoxy-6-(2-nitrophenyl)-1-phenyl-1H-pyrazolo[3,4-d]pyrimidine was determined by single crystal X-ray diffraction.
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Affiliation(s)
- Mingxing Liu
- School of Chemical Engineering and Environment, Beijing Institute of Technology, Beijing, 100081, China
| | - Jiarong Li
- School of Chemical Engineering and Environment, Beijing Institute of Technology, Beijing, 100081, China
| | - Hongxin Chai
- School of Chemical Engineering and Environment, Beijing Institute of Technology, Beijing, 100081, China
| | - Kai Zhang
- School of Chemical Engineering and Environment, Beijing Institute of Technology, Beijing, 100081, China
| | - Deli Yang
- School of Chemical Engineering and Environment, Beijing Institute of Technology, Beijing, 100081, China
| | - Qi Zhang
- School of Chemical Engineering and Environment, Beijing Institute of Technology, Beijing, 100081, China
| | - Daxin Shi
- School of Chemical Engineering and Environment, Beijing Institute of Technology, Beijing, 100081, China
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30
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Di-n-butyl ammonium chlorosulfonate ionic liquids as an efficient and recyclable catalyst for the synthesis of 1,4-dihydrobenzo[4,5]imidazo[1,2-a]pyrimidine-3-carboxylates under solvent-free ultrasound irradiation. RESEARCH ON CHEMICAL INTERMEDIATES 2015. [DOI: 10.1007/s11164-015-2328-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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31
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Lawhorn BG, Philp J, Zhao Y, Louer C, Hammond M, Cheung M, Fries H, Graves AP, Shewchuk L, Wang L, Cottom JE, Qi H, Zhao H, Totoritis R, Zhang G, Schwartz B, Li H, Sweitzer S, Holt DA, Gatto GJ, Kallander LS. Identification of Purines and 7-Deazapurines as Potent and Selective Type I Inhibitors of Troponin I-Interacting Kinase (TNNI3K). J Med Chem 2015; 58:7431-48. [PMID: 26355916 DOI: 10.1021/acs.jmedchem.5b00931] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A series of cardiac troponin I-interacting kinase (TNNI3K) inhibitors arising from 3-((9H-purin-6-yl)amino)-N-methyl-benzenesulfonamide (1) is disclosed along with fundamental structure-function relationships that delineate the role of each element of 1 for TNNI3K recognition. An X-ray structure of 1 bound to TNNI3K confirmed its Type I binding mode and is used to rationalize the structure-activity relationship and employed to design potent, selective, and orally bioavailable TNNI3K inhibitors. Identification of the 7-deazapurine heterocycle as a superior template (vs purine) and its elaboration by introduction of C4-benzenesulfonamide and C7- and C8-7-deazapurine substituents produced compounds with substantial improvements in potency (>1000-fold), general kinase selectivity (10-fold improvement), and pharmacokinetic properties (>10-fold increase in poDNAUC). Optimal members of the series have properties suitable for use in in vitro and in vivo experiments aimed at elucidating the role of TNNI3K in cardiac biology and serve as leads for developing novel heart failure medicines.
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Affiliation(s)
- Brian G Lawhorn
- Heart Failure Discovery Performance Unit and ‡Platform Technology and Sciences, GlaxoSmithKline , 709 Swedeland Road, King of Prussia, Pennsylvania 19406, United States
| | - Joanne Philp
- Heart Failure Discovery Performance Unit and ‡Platform Technology and Sciences, GlaxoSmithKline , 709 Swedeland Road, King of Prussia, Pennsylvania 19406, United States
| | - Yongdong Zhao
- Heart Failure Discovery Performance Unit and ‡Platform Technology and Sciences, GlaxoSmithKline , 709 Swedeland Road, King of Prussia, Pennsylvania 19406, United States
| | - Christopher Louer
- Heart Failure Discovery Performance Unit and ‡Platform Technology and Sciences, GlaxoSmithKline , 709 Swedeland Road, King of Prussia, Pennsylvania 19406, United States
| | - Marlys Hammond
- Heart Failure Discovery Performance Unit and ‡Platform Technology and Sciences, GlaxoSmithKline , 709 Swedeland Road, King of Prussia, Pennsylvania 19406, United States
| | - Mui Cheung
- Heart Failure Discovery Performance Unit and ‡Platform Technology and Sciences, GlaxoSmithKline , 709 Swedeland Road, King of Prussia, Pennsylvania 19406, United States
| | - Harvey Fries
- Heart Failure Discovery Performance Unit and ‡Platform Technology and Sciences, GlaxoSmithKline , 709 Swedeland Road, King of Prussia, Pennsylvania 19406, United States
| | - Alan P Graves
- Heart Failure Discovery Performance Unit and ‡Platform Technology and Sciences, GlaxoSmithKline , 709 Swedeland Road, King of Prussia, Pennsylvania 19406, United States
| | - Lisa Shewchuk
- Heart Failure Discovery Performance Unit and ‡Platform Technology and Sciences, GlaxoSmithKline , 709 Swedeland Road, King of Prussia, Pennsylvania 19406, United States
| | - Liping Wang
- Heart Failure Discovery Performance Unit and ‡Platform Technology and Sciences, GlaxoSmithKline , 709 Swedeland Road, King of Prussia, Pennsylvania 19406, United States
| | - Joshua E Cottom
- Heart Failure Discovery Performance Unit and ‡Platform Technology and Sciences, GlaxoSmithKline , 709 Swedeland Road, King of Prussia, Pennsylvania 19406, United States
| | - Hongwei Qi
- Heart Failure Discovery Performance Unit and ‡Platform Technology and Sciences, GlaxoSmithKline , 709 Swedeland Road, King of Prussia, Pennsylvania 19406, United States
| | - Huizhen Zhao
- Heart Failure Discovery Performance Unit and ‡Platform Technology and Sciences, GlaxoSmithKline , 709 Swedeland Road, King of Prussia, Pennsylvania 19406, United States
| | - Rachel Totoritis
- Heart Failure Discovery Performance Unit and ‡Platform Technology and Sciences, GlaxoSmithKline , 709 Swedeland Road, King of Prussia, Pennsylvania 19406, United States
| | - Guofeng Zhang
- Heart Failure Discovery Performance Unit and ‡Platform Technology and Sciences, GlaxoSmithKline , 709 Swedeland Road, King of Prussia, Pennsylvania 19406, United States
| | - Benjamin Schwartz
- Heart Failure Discovery Performance Unit and ‡Platform Technology and Sciences, GlaxoSmithKline , 709 Swedeland Road, King of Prussia, Pennsylvania 19406, United States
| | - Hu Li
- Heart Failure Discovery Performance Unit and ‡Platform Technology and Sciences, GlaxoSmithKline , 709 Swedeland Road, King of Prussia, Pennsylvania 19406, United States
| | - Sharon Sweitzer
- Heart Failure Discovery Performance Unit and ‡Platform Technology and Sciences, GlaxoSmithKline , 709 Swedeland Road, King of Prussia, Pennsylvania 19406, United States
| | - Dennis A Holt
- Heart Failure Discovery Performance Unit and ‡Platform Technology and Sciences, GlaxoSmithKline , 709 Swedeland Road, King of Prussia, Pennsylvania 19406, United States
| | - Gregory J Gatto
- Heart Failure Discovery Performance Unit and ‡Platform Technology and Sciences, GlaxoSmithKline , 709 Swedeland Road, King of Prussia, Pennsylvania 19406, United States
| | - Lara S Kallander
- Heart Failure Discovery Performance Unit and ‡Platform Technology and Sciences, GlaxoSmithKline , 709 Swedeland Road, King of Prussia, Pennsylvania 19406, United States
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32
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Liu Y, Xia G, Luo C, Sun J, Ye B, Yuan Y, Wang H. One-step synthesis of alkyl 2-chloropyrimido[1,2-a]benzimidazole-3-carboxylates under catalyst-free: combined experimental and computational studies. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.07.050] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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33
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Elshakre ME, Moustafa H, Hassaneen HME, Moussa AZ. Electronic spectra and DFT calculations of some pyrimido[1,2-a]benzimidazole derivatives. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 145:1-14. [PMID: 25754524 DOI: 10.1016/j.saa.2015.02.107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Revised: 02/19/2015] [Accepted: 02/22/2015] [Indexed: 06/04/2023]
Abstract
Ground state properties of 2,4-diphenyl-1,4-dihydrobenzo[4,5]imidazo[1,2-a]pyrimidine, compound 1, and its derivatives are investigated experimentally and theoretically in Dioxane and DMF. The calculations show that all the studied compounds (1-7) are non-planar, resulting in a significant impact on the electronic and structural properties. The ground state properties of compounds 1-7 at B3LYP/6-311G (d, p) show that compound 5 has the lowest EHOMO, ELUMO, and ΔE indicating highest reactivity. Compound 7 is found to have the highest polarity. The observed UV spectra in Dioxane and DMF of compounds 1-4 show 2 bands, while compounds 5-7 show 4 bands in both solvents. Band maxima (λmax) and intensities of the spectra are found to have solvent dependence reflected as blue and red shifts. The theoretical spectra computed at TD-B3LYP/6-311G (d, p) in gas phase, Dioxane and DMF indicate a good agreement with the observed spectra.
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Affiliation(s)
- Mohamed E Elshakre
- Chemistry Department, College of Science, Cairo University, University Ave., Dokki, 12613 Cairo, Egypt
| | - H Moustafa
- Chemistry Department, College of Science, Cairo University, University Ave., Dokki, 12613 Cairo, Egypt.
| | - Huwaida M E Hassaneen
- Chemistry Department, College of Science, Cairo University, University Ave., Dokki, 12613 Cairo, Egypt
| | - Abdelrahim Z Moussa
- Chemistry Department, College of Science, Cairo University, University Ave., Dokki, 12613 Cairo, Egypt
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34
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35
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M. Sayed S, A. Raslan M, A. Khalil M. Synthesis and Reactivity of Cyanomethyl Thiazolyl Ketone: A Facile Synthesis of Some New Azoles, Chromene, Pyridine, Thiophene, Pyrazolo[3,4-b]pyridine and Pyrimido[1,2-a]benzimidazole Derivatives. HETEROCYCLES 2015. [DOI: 10.3987/com-15-13169] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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36
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Polyethylene glycol (PEG-400): an efficient green reaction medium for the synthesis of benzo[4,5]imidazo[1,2-a]-pyrimido[4,5-d]pyrimidin-4(1H)-ones under catalyst-free conditions. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.09.135] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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37
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Gaba M, Singh S, Mohan C. Benzimidazole: an emerging scaffold for analgesic and anti-inflammatory agents. Eur J Med Chem 2014; 76:494-505. [PMID: 24602792 DOI: 10.1016/j.ejmech.2014.01.030] [Citation(s) in RCA: 200] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Revised: 01/19/2014] [Accepted: 01/20/2014] [Indexed: 02/02/2023]
Abstract
Within the vast range of heterocycles, benzimidazole and its derivatives are found to be trendy structures employed for discovery of drugs in the field of pharmaceutical and medicinal chemistry. The unique structural features of benzimidazole and a wide range of biological activities of its derivatives made it privileged structure in drug discovery. Recently, benzimidazole scaffold has emerged as a pharmacophore of choice for designing analgesic and anti-inflammatory agents active on different clinically approved targets. To pave the way for future research, there is a need to collect the latest information in this promising area. In the present review we have collated published reports on this versatile core to provide an insight so that its full therapeutic potential can be utilized for the treatment of pain and inflammation.
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Affiliation(s)
- Monika Gaba
- Department of Pharmaceutical Sciences, ASBASJSM College of Pharmacy, Bela, Ropar, Punjab, India.
| | - Sarbjot Singh
- Drug Discovery Research, Panacea Biotec Pvt. Ltd., Mohali, Punjab, India
| | - Chander Mohan
- Rayat-Bahra Institute of Pharmacy, Hoshiarpur, Punjab, India
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Singla P, Luxami V, Paul K. Benzimidazole-biologically attractive scaffold for protein kinase inhibitors. RSC Adv 2014. [DOI: 10.1039/c3ra46304d] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
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39
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Liu M, Li J, Chen S, Huang D, Chai H, Zhang Q, Shi D. One-pot NHC-assisted access to 2,3-dihydropyrimido[4,5-d]pyrimidin-4(1H)-ones. RSC Adv 2014. [DOI: 10.1039/c4ra05346j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An efficient N-heterocyclic carbene-assisted one-pot reaction synthesis of 2,3-dihydropyrimido[4,5-d] pyrimidin-4(1H)-ones from 2-(ethoxymethylene)malononitrile, guanidines (or amidines) and ketones (or aldehyde) has been developed. The novel method provides a highly efficient synthesis of pyrimido[4,5-d]pyrimidinering from materials with no heterocyclic structures.
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Affiliation(s)
- Mingxing Liu
- School of Chemical Engineering and Environment
- Beijing Institute of Technology
- Beijing, China
| | - Jiarong Li
- School of Chemical Engineering and Environment
- Beijing Institute of Technology
- Beijing, China
| | - Shu Chen
- School of Chemical Engineering and Environment
- Beijing Institute of Technology
- Beijing, China
| | - Danfei Huang
- School of Chemical Engineering and Environment
- Beijing Institute of Technology
- Beijing, China
| | - Hongxin Chai
- School of Chemical Engineering and Environment
- Beijing Institute of Technology
- Beijing, China
| | - Qi Zhang
- School of Chemical Engineering and Environment
- Beijing Institute of Technology
- Beijing, China
| | - Daxin Shi
- School of Chemical Engineering and Environment
- Beijing Institute of Technology
- Beijing, China
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40
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Bansal Y, Silakari O. The therapeutic journey of benzimidazoles: a review. Bioorg Med Chem 2012; 20:6208-36. [PMID: 23031649 DOI: 10.1016/j.bmc.2012.09.013] [Citation(s) in RCA: 519] [Impact Index Per Article: 43.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2012] [Revised: 09/07/2012] [Accepted: 09/07/2012] [Indexed: 01/03/2023]
Abstract
Presence of benzimidazole nucleus in numerous categories of therapeutic agents such as antimicrobials, antivirals, antiparasites, anticancer, anti-inflammatory, antioxidants, proton pump inhibitors, antihypertensives, anticoagulants, immunomodulators, hormone modulators, CNS stimulants as well as depressants, lipid level modulators, antidiabetics, etc. has made it an indispensable anchor for development of new therapeutic agents. Varied substitutents around the benzimidazole nucleus have provided a wide spectrum of biological activities. Importance of this nucleus in some activities like, Angiotensin I (AT(1)) receptor antagonism and proton-pump inhibition is reviewed separately in literature. Even some very short reviews on biological importance of this nucleus are also known in literature. However, owing to fast development of new drugs possessing benzimidazole nucleus many research reports are generated in short span of time. So, there is a need to couple the latest information with the earlier information to understand the current status of benzimidazole nucleus in medicinal chemistry research. In the present review, various derivatives of benzimidazole with different pharmacological activities are described on the basis of substitution pattern around the nucleus with an aim to help medicinal chemists for developing an SAR on benzimidazole derived compounds for each activity. This discussion will further help in the development of novel benzimidazole compounds.
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Affiliation(s)
- Yogita Bansal
- Molecular Modelling Lab, Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, Punjab 147002, India
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41
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Brullo C, Rocca M, Fossa P, Cichero E, Barocelli E, Ballabeni V, Flammini L, Giorgio C, Saccani F, Domenichini G, Bruno O. Synthesis of new 5,6-dihydrobenzo[h]quinazoline 2,4-diamino substituted and antiplatelet/antiphlogistic activities evaluation. Bioorg Med Chem Lett 2012; 22:1125-9. [PMID: 22189137 DOI: 10.1016/j.bmcl.2011.11.103] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2011] [Revised: 11/24/2011] [Accepted: 11/27/2011] [Indexed: 10/14/2022]
Abstract
In pursuing our research on some 2,4-diamino-benzopyranopyrimidines and 2-amino-5,6-dihydrobenzo[h]quinazolines, previously reported as antiplatelet and analgesic/anti-inflammatory agents respectively, we designed and synthesized a new series of 5,6-dihydrobenzo[h]quinazoline 2,4-diamino substituted. The insertion of amino substituents at positions 2 and 4 of the benzoquinazoline scaffold resulted in compounds endowed with a potent ASA-like antiplatelet activity, combined with an anti-inflammatory activity comparable, in some cases, to that of indomethacin, used as a reference drug.
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Affiliation(s)
- Chiara Brullo
- Dipartimento di Scienze Farmaceutiche, University of Genoa, V.le Benedetto XV, 3-16132 Genova, Italy
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Discovery of 2,4-bis-arylamino-1,3-pyrimidines as insulin-like growth factor-1 receptor (IGF-1R) inhibitors. Bioorg Med Chem Lett 2011; 21:2394-9. [PMID: 21414779 DOI: 10.1016/j.bmcl.2011.02.075] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2010] [Revised: 02/16/2011] [Accepted: 02/17/2011] [Indexed: 11/22/2022]
Abstract
The insulin-like growth factor-1 receptor (IGF-1R) plays an important role in the regulation of cell growth and differentiation, and in protection from apoptosis. IGF-1R has been shown to be an appealing target for the treatment of human cancer. Herein, we report the synthesis, structure-activity relationships (SAR), X-ray cocrystal structure and in vivo tumor study results for a series of 2,4-bis-arylamino-1,3-pyrimidines.
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43
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Martin MW, Machacek MR. Update on lymphocyte specific kinase inhibitors: a patent survey. Expert Opin Ther Pat 2010; 20:1573-93. [PMID: 20831362 DOI: 10.1517/13543776.2010.517749] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
IMPORTANCE OF THE FIELD Lck (p56(lck) or lymphocyte specific kinase) is a cytoplasmic tyrosine kinase of the Src family expressed in T cells and natural killer (NK) cells. Genetic evidence from knockout mice and human mutations demonstrates that Lck kinase activity is critical for T cell receptor (TCR)-mediated signaling, leading to normal T-cell development and activation. Selective inhibition of Lck is expected to offer a new therapy for the treatment of T-cell-mediated autoimmune and inflammatory disorders and/or organ transplant rejection. AREAS COVERED IN THIS REVIEW This review covers the patents, patent applications and associated publications for small molecule kinase inhibitors of Lck since 2005 and attempts to place them in context from a structural point of view. WHAT THE READER WILL GAIN Readers will gain an overview of the structural classes and binding modes of Lck inhibitors, the major players in this area and an insight into the current state of the field. TAKE HOME MESSAGE The search for a potent and orally active inhibitor of Lck has been an intense area of research for a number of years. Despite tremendous efforts, the identification of a highly selective and potent Lck inhibitor suitable for use as an immunosuppressive agent remains elusive.
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Affiliation(s)
- Matthew W Martin
- Amgen, Inc., Department of Medicinal Chemistry, Cambridge, Massachusetts 02142, USA.
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Hsiao YS, Yellol GS, Chen LH, Sun CM. Multidisciplinary Synthetic Approach for Rapid Combinatorial Library Synthesis of Triaza-Fluorenes. ACTA ACUST UNITED AC 2010; 12:723-32. [DOI: 10.1021/cc1000902] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Ya-Shan Hsiao
- Department of Chemistry, National Chiao Tung University, Hsinchu 300-10, Taiwan
| | - Gorakh S. Yellol
- Department of Chemistry, National Chiao Tung University, Hsinchu 300-10, Taiwan
| | - Li-Hsun Chen
- Department of Chemistry, National Chiao Tung University, Hsinchu 300-10, Taiwan
| | - Chung-Ming Sun
- Department of Chemistry, National Chiao Tung University, Hsinchu 300-10, Taiwan
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Wang Y, Shafiq Z, Liu L, Wang D, Chen YJ. Efficient synthesis of benzimidazo[1,2- a]pyrimidinone derivatives viacatalyst-free reactions of Baylis-Hillman acetates, alcohols, and amines with 2-aminobenzimidazole. J Heterocycl Chem 2010. [DOI: 10.1002/jhet.324] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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46
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Takayama T, Umemiya H, Amada H, Yabuuchi T, Shiozawa F, Katakai H, Takaoka A, Yamaguchi A, Endo M, Sato M. Pyrrole derivatives as potent inhibitors of lymphocyte-specific kinase: Structure, synthesis, and SAR. Bioorg Med Chem Lett 2009; 20:108-11. [PMID: 19945869 DOI: 10.1016/j.bmcl.2009.11.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2009] [Revised: 11/05/2009] [Accepted: 11/07/2009] [Indexed: 01/08/2023]
Abstract
We have described the synthesis, enzyme inhibitory activity, structure-activity relationships, and proposed binding mode of a novel series of pyrrole derivatives as lymphocyte-specific kinase (Lck) inhibitors. The most potent analogs exhibited good enzyme inhibitory activity (IC(50)s <10nM) for Lck kinase inhibition.
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Affiliation(s)
- Tetsuo Takayama
- Medicinal Research Laboratories, Taisho Pharmaceutical Co., Ltd, 403, Yoshino-Cho 1-Chome, Kita-Ku, Saitama-Shi, Saitama 331-9530, Japan.
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Takayama T, Umemiya H, Amada H, Yabuuchi T, Koami T, Shiozawa F, Oka Y, Takaoka A, Yamaguchi A, Endo M, Sato M. Ring-fused pyrazole derivatives as potent inhibitors of lymphocyte-specific kinase (Lck): Structure, synthesis, and SAR. Bioorg Med Chem Lett 2009; 20:112-6. [PMID: 19945867 DOI: 10.1016/j.bmcl.2009.11.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2009] [Revised: 11/05/2009] [Accepted: 11/07/2009] [Indexed: 11/30/2022]
Abstract
We have identified a novel series of ring-fused pyrazole derivatives as lymphocyte-specific kinase (Lck) inhibitors. The most potent analogs exhibited good enzyme inhibitory activity (IC(50)s <1nM) as well as excellent cellular activity against mixed lymphocyte reaction (MLR) (IC(50)s <1nM).
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Affiliation(s)
- Tetsuo Takayama
- Medicinal Research Laboratories, Taisho Pharmaceutical Co., Ltd, 403, Yoshino-Cho 1-Chome, Kita-Ku, Saitama-Shi, Saitama 331-9530, Japan.
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48
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Hunt JA, Beresis RT, Goulet JL, Holmes MA, Hong XJ, Kovacs E, Mills SG, Ruzek RD, Wong F, Hermes JD, Park YW, Salowe SP, Sonatore LM, Wu L, Woods A, Zaller DM, Sinclair PJ. Disubstituted pyrimidines as Lck inhibitors. Bioorg Med Chem Lett 2009; 19:5440-3. [PMID: 19674899 DOI: 10.1016/j.bmcl.2009.07.102] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2009] [Revised: 07/20/2009] [Accepted: 07/22/2009] [Indexed: 11/27/2022]
Abstract
We have developed a family of 4-benzimidazolyl-N-piperazinethyl-pyrimidin-2-amines that are subnanomolar inhibitors of Lck. A subset of these Lck inhibitors, with heterocyclic substituents at the benzimidazole C5, are also low-nanomolar inhibitors of cellular IL2 release.
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Affiliation(s)
- Julianne A Hunt
- Merck Research Laboratories, Merck & Co., PO Box 2000, Rahway, NJ 07065, United States.
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Abstract
Inflammation is an evolutionarily conserved host reaction that is initiated in response to trauma, tissue damage and infection. It leads to changes in tissue homeostasis and blood flow, immune-cell activation and migration, and secretion of cytokines and mediators in a spatio-temporally coordinated manner. Progress in understanding of the mechanisms of the inflammatory response has identified various protein kinases that act as essential signalling components and therefore represent potential therapeutic targets. This article summarizes advances in the identification and validation of such targets, and discusses key issues for the development of small-molecule kinase inhibitors as a new generation of oral anti-inflammatory drugs, including feedback loops, inhibitor specificity and combination therapy.
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50
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Yao C, Lei S, Wang C, Li T, Yu C, Wang X, Tu S. Three-component synthesis of 4-aryl-1H-pyrimido[1,2-a]benzimidazole derivatives in ionic liquid. J Heterocycl Chem 2009. [DOI: 10.1002/jhet.215] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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