1
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Zhao WW, Tian MY, Zhou YL, Liu LJ, Tian SF, He CY, Yang XZ, Chen YZ, Han WY. Trifluoromethyl Rhodium-Carbynoid in [2+1+2] Cycloadditions. Angew Chem Int Ed Engl 2024; 63:e202318887. [PMID: 38237082 DOI: 10.1002/anie.202318887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Indexed: 02/24/2024]
Abstract
Trifluoromethyl cationic carbyne (CF3 C+ :) possessing dual carbene-carbocation behavior emulated as trifluoromethyl metal-carbynoid (CF3 C+ =M) has not been explored yet, and its reaction characteristics are unknown. Herein, a novel α-diazotrifluoroethyl sulfonium salt was prepared and used in Rh-catalyzed three-component [2+1+2] cycloadditions for the first time with commercially available N-fused heteroarenes and nitriles, yielding a series of imidazo[1,5-a] N-heterocycles that are of interest in medicinal chemistry, in which the insertion of trifluoromethyl Rh-carbynoid (CF3 C+ =Rh) into C=N bonds of N-fused heteroarenes was involved. This strategy demonstrates synthetic applications in late-stage modification of pharmaceuticals, construction of CD3 -containing N-heterocycles, gram-scale experiments, and synthesis of phosphodiesterase 10A inhibitor analog. These highly valuable and modifiable imidazo[1,5-a] N-heterocycles exhibit good antitumor activity in vitro, thus demonstrating their potential applications in medicinal chemistry.
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Affiliation(s)
- Wen-Wen Zhao
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, School of Pharmacy, Zunyi Medical University, No. 6 West Xuefu Rd., 563006, Zunyi, China
| | - Meng-Yang Tian
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, School of Pharmacy, Zunyi Medical University, No. 6 West Xuefu Rd., 563006, Zunyi, China
| | - Yi-Lin Zhou
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, School of Pharmacy, Zunyi Medical University, No. 6 West Xuefu Rd., 563006, Zunyi, China
| | - Lu-Jie Liu
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, School of Pharmacy, Zunyi Medical University, No. 6 West Xuefu Rd., 563006, Zunyi, China
| | - Shao-Fang Tian
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, School of Pharmacy, Zunyi Medical University, No. 6 West Xuefu Rd., 563006, Zunyi, China
| | - Chun-Yang He
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, School of Pharmacy, Zunyi Medical University, No. 6 West Xuefu Rd., 563006, Zunyi, China
- Key Laboratory of Basic Pharmacology of Ministry of Education, Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, No. 6 West Xuefu Rd., 563006, Zunyi, China
| | - Xing-Zhi Yang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, 132 Lanhei Road, 650201, Kunming, China
| | - Yong-Zheng Chen
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, School of Pharmacy, Zunyi Medical University, No. 6 West Xuefu Rd., 563006, Zunyi, China
- Key Laboratory of Basic Pharmacology of Ministry of Education, Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, No. 6 West Xuefu Rd., 563006, Zunyi, China
| | - Wen-Yong Han
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, School of Pharmacy, Zunyi Medical University, No. 6 West Xuefu Rd., 563006, Zunyi, China
- Key Laboratory of Basic Pharmacology of Ministry of Education, Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, No. 6 West Xuefu Rd., 563006, Zunyi, China
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2
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Wang H, Huang L, Li J, Hao W. Copper(II)-catalyzed cascade Csp 2-P/C-C bond formation to construct benzo[ d]thiazol-2-ylphosphonates. Org Biomol Chem 2023; 21:7696-7701. [PMID: 37698339 DOI: 10.1039/d3ob01256e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/13/2023]
Abstract
A novel, copper(II)-catalyzed cascade Csp2-P/C-C bond formation in o-haloaryl isothiocyanates with organophosphorus esters has been developed under mild conditions. A series of benzo[d]thiazol-2-ylphosphonates were synthesized in moderate to good yields. Different from the traditional method of obtaining these scaffolds with radical reactions, the method proposed allows accessing them via ionic reactions and has the advantages of easy access to raw materials and simple operation. Finally, we carried out a gram-scale experiment to further demonstrate the scalability of this strategy in the efficient synthesis of benzo[d]thiazol-2-ylphosphonates.
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Affiliation(s)
- Han Wang
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, People's Republic of China.
| | - Le Huang
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, People's Republic of China.
| | - Jun Li
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, People's Republic of China.
| | - Wenyan Hao
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, People's Republic of China.
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3
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Singhal R, Choudhary SP, Malik B, Pilania M. Cyclic diaryliodonium salts: applications and overview. Org Biomol Chem 2023; 21:4358-4378. [PMID: 37161758 DOI: 10.1039/d3ob00134b] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Owing to the recent renewed interest and groundbreaking advances in hypervalent chemistry, cyclic diaryliodonium salts have had a myriad of unique applications in the past decade. Their numerous properties, such as an efficient dual arylation mechanism, straightforward one-pot synthesis compatibility, wide substrate scope, and functionalization tolerance, have made them appropriate starting materials for many bioactive compounds. Fluorenes, thiophenes, carbazoles, phenanthrenes, and many other useful cyclic bioactive molecules that are essential for pharmaceutical synthesis can be readily accessed from cyclic diaryliodonium salts. Particular focus has been given to the high optical activity and good enantiomeric excess of the products that facilitate the easy formation of many difficult-to-obtain optical isomers, such as atropisomers. This review aims to compile and summarize all the recent advances in synthesizing methodologies to prepare the important compounds where cyclic diaryliodonium salt is an integral part of the methodologies and would hopefully provide a good foundation for further research on this topic.
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Affiliation(s)
- Rakshanda Singhal
- Department of Chemistry, Manipal University Jaipur, Jaipur, VPO-Dehmi-Kalan, Off Jaipur-Ajmer Express Way, Jaipur, Rajasthan, 303007, India.
| | - Satya Prakash Choudhary
- Department of Chemistry, Manipal University Jaipur, Jaipur, VPO-Dehmi-Kalan, Off Jaipur-Ajmer Express Way, Jaipur, Rajasthan, 303007, India.
| | - Babita Malik
- Department of Chemistry, Manipal University Jaipur, Jaipur, VPO-Dehmi-Kalan, Off Jaipur-Ajmer Express Way, Jaipur, Rajasthan, 303007, India.
| | - Meenakshi Pilania
- Department of Chemistry, Manipal University Jaipur, Jaipur, VPO-Dehmi-Kalan, Off Jaipur-Ajmer Express Way, Jaipur, Rajasthan, 303007, India.
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4
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Molecular modeling of new thiazolyl-thiophene based compounds as antioxidant agents. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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5
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Liu M, Yan K, Wen J, Zhang N, Chen X, Li X, Wang X. PIFA Induced Regioselective C–H Chalcogenylation of Benzo[d]imidazo[5,1‐b]thiazoles under Mild Conditions. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Min Liu
- Qufu Normal University College of Chemistry and Chemical Engineering Qufu CHINA
| | - Kelu Yan
- Qufu Normal University School of Chemistry and Chemical Engineering Jingxuan Road 57 273165 Qufu CHINA
| | - Jiangwei Wen
- Qufu Normal University College of Chemistry and Chemical Engineering Qufu CHINA
| | - Ning Zhang
- Qufu Normal University College of Chemistry and Chemical Engineering Qufu CHINA
| | - Xinyu Chen
- Qufu Normal University College of Chemistry and Chemical Engineering Qufu CHINA
| | - Xue Li
- Qufu Normal University College of Chemistry and Chemical Engineering Qufu CHINA
| | - Xiu Wang
- Qufu Normal University College of Chemistry and Chemical Engineering Qufu CHINA
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6
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Ardon-Munoz LG, Bolliger JL. Oxidative Cyclization of 4‐(2‐Mercaptophenyl)‐substituted 4H‐1,2,4‐Triazolium Species to Tricyclic Benzothiazolium Salts. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Jeanne Lucille Bolliger
- Oklahoma State University The College of Arts and Sciences Chemistry 107 Physical Sciences 74078 Stillwater UNITED STATES
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7
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Antonkin NS, Vlasenko YA, Yoshimura A, Smirnov VI, Borodina TN, Zhdankin VV, Yusubov MS, Shafir A, Postnikov PS. Preparation and Synthetic Applicability of Imidazole-Containing Cyclic Iodonium Salts. J Org Chem 2021; 86:7163-7178. [PMID: 33944564 DOI: 10.1021/acs.joc.1c00483] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A novel approach to the preparation of imidazole-substituted cyclic iodonium salts has been developed via the oxidative cyclization of 1-phenyl-5-iodoimidazole using a cheap and available Oxone/H2SO4 oxidative system. The structure of the new polycyclic heteroarenes has been confirmed by single-crystal X-ray diffractometry, revealing the characteristic structure features for cyclic iodonium salts. The newly produced imidazole-flanked cyclic iodonium compounds were found to readily engage in a heterocyclization reaction with elemental sulfur, affording benzo[5,1-b]imidazothiazoles in good yields.
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Affiliation(s)
- Nikita S Antonkin
- Research School of Chemistry and Applied Biomedical Sciences, Tomsk Polytechnic University, Tomsk 634050, Russian Federation
| | - Yulia A Vlasenko
- Research School of Chemistry and Applied Biomedical Sciences, Tomsk Polytechnic University, Tomsk 634050, Russian Federation
| | - Akira Yoshimura
- Research School of Chemistry and Applied Biomedical Sciences, Tomsk Polytechnic University, Tomsk 634050, Russian Federation
| | - Vladimir I Smirnov
- A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, Favorsky Str., 1, Irkutsk 664033, Russian Federation
| | - Tatyana N Borodina
- A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, Favorsky Str., 1, Irkutsk 664033, Russian Federation
| | - Viktor V Zhdankin
- Research School of Chemistry and Applied Biomedical Sciences, Tomsk Polytechnic University, Tomsk 634050, Russian Federation.,Department of Chemistry and Biochemistry, University of Minnesota Duluth, Duluth, Minnesota 55812, United States
| | - Mekhman S Yusubov
- Research School of Chemistry and Applied Biomedical Sciences, Tomsk Polytechnic University, Tomsk 634050, Russian Federation
| | - Alexandr Shafir
- Department of Biological Chemistry, IQAC-CSIC, c/Jordi Girona 18-26, Barcelona 08034, Spain
| | - Pavel S Postnikov
- Research School of Chemistry and Applied Biomedical Sciences, Tomsk Polytechnic University, Tomsk 634050, Russian Federation.,Department of Solid-State Engineering, University of Chemistry and Technology, Prague 16628, Czech Republic
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8
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Amin HS, Parikh PK, Ghate MD. Medicinal chemistry strategies for the development of phosphodiesterase 10A (PDE10A) inhibitors - An update of recent progress. Eur J Med Chem 2021; 214:113155. [PMID: 33581555 DOI: 10.1016/j.ejmech.2021.113155] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 12/27/2020] [Accepted: 01/03/2021] [Indexed: 11/26/2022]
Abstract
Phosphodiesterase 10A is a member of Phosphodiesterase (PDE)-superfamily of the enzyme which is responsible for hydrolysis of cAMP and cGMP to their inactive forms 5'-AMP and 5'-GMP, respectively. PDE10A is highly expressed in the brain, particularly in the putamen and caudate nucleus. PDE10A plays an important role in the regulation of localization, duration, and amplitude of the cyclic nucleotide signalling within the subcellular domain of these regions, and thereby modulation of PDE10A enzyme can give rise to a new therapeutic approach in the treatment of schizophrenia and other neurodegenerative disorders. Limitation of the conventional therapy of schizophrenia forced the pharmaceutical industry to move their efforts to develop a novel treatment approach with reduced side effects. In the past decade, considerable developments have been made in pursuit of PDE10A centric antipsychotic agents by several pharmaceutical industries due to the distribution of PDE10A in the brain and the ability of PDE10A inhibitors to mimic the effect of D2 antagonists and D1 agonists. However, no selective PDE10A inhibitor is currently available in the market for the treatment of schizophrenia. The present compilation concisely describes the role of PDE10A inhibitors in the therapy of neurodegenerative disorders mainly in psychosis, the structure of PDE10A enzyme, key interaction of different PDE10A inhibitors with human PDE10A enzyme and recent medicinal chemistry developments in designing of safe and effective PDE10A inhibitors for the treatment of schizophrenia. The present compilation also provides useful information and future direction to bring further improvements in the discovery of PDE10A inhibitors.
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Affiliation(s)
- Harsh S Amin
- Department of Pharmaceutical Chemistry, Institute of Pharmacy, Nirma University, Ahmedabad, 382 481, Gujarat, India
| | - Palak K Parikh
- Department of Pharmaceutical Chemistry, Institute of Pharmacy, Nirma University, Ahmedabad, 382 481, Gujarat, India; Department of Pharmaceutical Chemistry, L. M. College of Pharmacy, Navrangpura, Ahmedabad, 380 009, Gujarat, India.
| | - Manjunath D Ghate
- Department of Pharmaceutical Chemistry, Institute of Pharmacy, Nirma University, Ahmedabad, 382 481, Gujarat, India
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9
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Jankowska A, Świerczek A, Wyska E, Gawalska A, Bucki A, Pawłowski M, Chłoń-Rzepa G. Advances in Discovery of PDE10A Inhibitors for CNS-Related Disorders. Part 1: Overview of the Chemical and Biological Research. Curr Drug Targets 2020; 20:122-143. [PMID: 30091414 DOI: 10.2174/1389450119666180808105056] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 07/27/2018] [Accepted: 08/06/2018] [Indexed: 12/14/2022]
Abstract
Phosphodiesterase 10A (PDE10A) is a double substrate enzyme that hydrolyzes second messenger molecules such as cyclic-3',5'-adenosine monophosphate (cAMP) and cyclic-3',5'-guanosine monophosphate (cGMP). Through this process, PDE10A controls intracellular signaling pathways in the mammalian brain and peripheral tissues. Pharmacological, biochemical, and anatomical data suggest that disorders in the second messenger system mediated by PDE10A may contribute to impairments in the central nervous system (CNS) function, including cognitive deficits as well as disturbances of behavior, emotion processing, and movement. This review provides a detailed description of PDE10A and the recent advances in the design of selective PDE10A inhibitors. The results of preclinical studies regarding the potential utility of PDE10A inhibitors for the treatment of CNS-related disorders, such as schizophrenia as well as Huntington's and Parkinson's diseases are also summarized.
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Affiliation(s)
- Agnieszka Jankowska
- Department of Medicinal Chemistry, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Krakow, Poland
| | - Artur Świerczek
- Department of Pharmacokinetics and Physical Pharmacy, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Krakow, Poland
| | - Elżbieta Wyska
- Department of Pharmacokinetics and Physical Pharmacy, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Krakow, Poland
| | - Alicja Gawalska
- Department of Medicinal Chemistry, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Krakow, Poland
| | - Adam Bucki
- Department of Medicinal Chemistry, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Krakow, Poland
| | - Maciej Pawłowski
- Department of Medicinal Chemistry, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Krakow, Poland
| | - Grażyna Chłoń-Rzepa
- Department of Medicinal Chemistry, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Krakow, Poland
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10
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Saha A, Jana A, Choudhury LH. Lemon juice mediated multicomponent reactions for the synthesis of fused imidazoles. NEW J CHEM 2018. [DOI: 10.1039/c8nj03480j] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A green approach for the synthesis of diverse medicinally important tricyclic fused imidazoles has been described using one-pot multicomponent reactions in lemon juice as a biocatalyst as well as the reaction medium.
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Affiliation(s)
- Argha Saha
- Department of Chemistry
- Indian Institute of Technology Patna
- Patna-801103
- India
| | - Asim Jana
- Department of Chemistry
- Indian Institute of Technology Patna
- Patna-801103
- India
| | - Lokman H. Choudhury
- Department of Chemistry
- Indian Institute of Technology Patna
- Patna-801103
- India
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11
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Knott EP, Assi M, Rao SNR, Ghosh M, Pearse DD. Phosphodiesterase Inhibitors as a Therapeutic Approach to Neuroprotection and Repair. Int J Mol Sci 2017; 18:E696. [PMID: 28338622 PMCID: PMC5412282 DOI: 10.3390/ijms18040696] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Revised: 03/10/2017] [Accepted: 03/15/2017] [Indexed: 12/21/2022] Open
Abstract
A wide diversity of perturbations of the central nervous system (CNS) result in structural damage to the neuroarchitecture and cellular defects, which in turn are accompanied by neurological dysfunction and abortive endogenous neurorepair. Altering intracellular signaling pathways involved in inflammation and immune regulation, neural cell death, axon plasticity and remyelination has shown therapeutic benefit in experimental models of neurological disease and trauma. The second messengers, cyclic adenosine monophosphate (cyclic AMP) and cyclic guanosine monophosphate (cyclic GMP), are two such intracellular signaling targets, the elevation of which has produced beneficial cellular effects within a range of CNS pathologies. The only known negative regulators of cyclic nucleotides are a family of enzymes called phosphodiesterases (PDEs) that hydrolyze cyclic nucleotides into adenosine monophosphate (AMP) or guanylate monophosphate (GMP). Herein, we discuss the structure and physiological function as well as the roles PDEs play in pathological processes of the diseased or injured CNS. Further we review the approaches that have been employed therapeutically in experimental paradigms to block PDE expression or activity and in turn elevate cyclic nucleotide levels to mediate neuroprotection or neurorepair as well as discuss both the translational pathway and current limitations in moving new PDE-targeted therapies to the clinic.
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Affiliation(s)
- Eric P Knott
- Herbert Wertheim College of Medicine, Florida International University, Miami, FL 33199, USA.
| | - Mazen Assi
- The Miami Project to Cure Paralysis, The Miller School of Medicine at the University of Miami, Miami, FL 33136, USA.
| | - Sudheendra N R Rao
- The Miami Project to Cure Paralysis, The Miller School of Medicine at the University of Miami, Miami, FL 33136, USA.
| | - Mousumi Ghosh
- The Miami Project to Cure Paralysis, The Miller School of Medicine at the University of Miami, Miami, FL 33136, USA.
- The Department of Neurological Surgery, The Miller School of Medicine at the University of Miami, Miami, FL 33136, USA.
| | - Damien D Pearse
- The Miami Project to Cure Paralysis, The Miller School of Medicine at the University of Miami, Miami, FL 33136, USA.
- The Department of Neurological Surgery, The Miller School of Medicine at the University of Miami, Miami, FL 33136, USA.
- The Neuroscience Program, The Miller School of Medicine at the University of Miami, Miami, FL 33136, USA.
- The Interdisciplinary Stem Cell Institute, The Miller School of Medicine at the University of Miami, Miami, FL 33136, USA.
- Bruce Wayne Carter Department of Veterans Affairs Medical Center, Miami, FL 33136, USA.
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12
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Liu J, Wang L, Qing X, Zhang F, Wang T, Wang C. Synergistic NaBH 4Reduction/Cyclization of 2-Aroylcyclopropane-1-carboxylates: Synthesis of 3-Oxabicyclo[3.1.0]hexane Derivatives. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jiaming Liu
- School of Chemistry and Chemical Engineering; Yangzhou University; 180 Siwangting Street 225002 Yangzhou P. R. China
| | - Lizhong Wang
- School of Chemistry and Chemical Engineering; Yangzhou University; 180 Siwangting Street 225002 Yangzhou P. R. China
- Taizhou Polytechnic College; 225300 Taizhou P. R. China
| | - Xushun Qing
- School of Chemistry and Chemical Engineering; Yangzhou University; 180 Siwangting Street 225002 Yangzhou P. R. China
| | - Feixiang Zhang
- School of Chemistry and Chemical Engineering; Yangzhou University; 180 Siwangting Street 225002 Yangzhou P. R. China
| | - Ting Wang
- School of Chemistry and Chemical Engineering; Yangzhou University; 180 Siwangting Street 225002 Yangzhou P. R. China
| | - Cunde Wang
- School of Chemistry and Chemical Engineering; Yangzhou University; 180 Siwangting Street 225002 Yangzhou P. R. China
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13
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Castanedo G, Liu Y, Crawford JJ, Braun MG. Synthesis of Fused Imidazole-Containing Ring Systems via Dual Oxidative Amination of C(sp(3))-H Bonds. J Org Chem 2016; 81:8617-24. [PMID: 27529722 DOI: 10.1021/acs.joc.6b01517] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A general and efficient method for a metal-free one-pot synthesis of highly substituted fused imidazole-containing 5,5- and 5,6-fused bicyclic heterocycles is described. Starting from commercially available substrates and reagents, the reaction proceeds through two C-N bond formations and an oxidative dehydrogenation to form highly substituted products in good to excellent yield.
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Affiliation(s)
- Georgette Castanedo
- Genentech, Inc. , 1 DNA Way, South San Francisco, California 94080, United States
| | - Yanzhou Liu
- Genentech, Inc. , 1 DNA Way, South San Francisco, California 94080, United States
| | - James J Crawford
- Genentech, Inc. , 1 DNA Way, South San Francisco, California 94080, United States
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14
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Copper(I)-catalyzed cascade reaction of 2-haloaryl isothiocyanates with isocyanides: a strategy to construct benzo[d]imidazo[5,1-b]thiazoles. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.02.084] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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15
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Yan K, Yang D, Wei W, Sun P, Lu Y, Wang H. A copper-catalyzed cascade reaction of o-bromoarylisothiocyanates with isocyanides leading to benzo[d]imidazo[5,1-b]thiazoles under ligand-free conditions. Org Chem Front 2016. [DOI: 10.1039/c6qo00030d] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
A copper-catalyzed method has been realized for the synthesis of benzo[d]imidazo[5,1-b]thiazoles via intermolecular [3 + 2] cycloaddition and intramolecular C–S bond formation.
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Affiliation(s)
- Kelu Yan
- The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- P. R. China
| | - Daoshan Yang
- The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- P. R. China
| | - Wei Wei
- The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- P. R. China
| | - Pengfei Sun
- The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- P. R. China
| | - Yunxiang Lu
- The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- P. R. China
| | - Hua Wang
- The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- P. R. China
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16
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Wang J, Li J, Zhu Q. Copper-Promoted Cycloaddition of α-Methylenyl Isocyanides with Benzothiazoles: Tunable Access to Benzo[d]imidazothiazoles. Org Lett 2015; 17:5336-9. [DOI: 10.1021/acs.orglett.5b02694] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jian Wang
- State Key Laboratory of Respiratory
Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, 190 Kaiyuan Avenue, Guangzhou 510530, China
| | - Jing Li
- State Key Laboratory of Respiratory
Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, 190 Kaiyuan Avenue, Guangzhou 510530, China
| | - Qiang Zhu
- State Key Laboratory of Respiratory
Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, 190 Kaiyuan Avenue, Guangzhou 510530, China
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17
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Lingam VSP, Dahale DH, Rathi VE, Shingote YB, Thakur RR, Mindhe AS, Kummari S, Khairatkar-Joshi N, Bajpai M, Shah DM, Sapalya RS, Gullapalli S, Gupta PK, Gudi GS, Jadhav SB, Pattem R, Thomas A. Design, Synthesis, and Pharmacological Evaluation of 5,6-Disubstituted Pyridin-2(1H)-one Derivatives as Phosphodiesterase 10A (PDE10A) Antagonists. J Med Chem 2015; 58:8292-308. [DOI: 10.1021/acs.jmedchem.5b01240] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- V. S. Prasadarao Lingam
- Medicinal Chemistry Division, ‡Pharmacology Division, and §Drug Metabolism and Pharmacokinetics, Glenmark Research Centre, A-607, TTC Industrial Area, MIDC Mahape, Navi Mumbai, 400 709, India
| | - Dnyaneshwar H. Dahale
- Medicinal Chemistry Division, ‡Pharmacology Division, and §Drug Metabolism and Pharmacokinetics, Glenmark Research Centre, A-607, TTC Industrial Area, MIDC Mahape, Navi Mumbai, 400 709, India
| | - Vijay E. Rathi
- Medicinal Chemistry Division, ‡Pharmacology Division, and §Drug Metabolism and Pharmacokinetics, Glenmark Research Centre, A-607, TTC Industrial Area, MIDC Mahape, Navi Mumbai, 400 709, India
| | - Yogesh B. Shingote
- Medicinal Chemistry Division, ‡Pharmacology Division, and §Drug Metabolism and Pharmacokinetics, Glenmark Research Centre, A-607, TTC Industrial Area, MIDC Mahape, Navi Mumbai, 400 709, India
| | - Rajni R. Thakur
- Medicinal Chemistry Division, ‡Pharmacology Division, and §Drug Metabolism and Pharmacokinetics, Glenmark Research Centre, A-607, TTC Industrial Area, MIDC Mahape, Navi Mumbai, 400 709, India
| | - Ajit S. Mindhe
- Medicinal Chemistry Division, ‡Pharmacology Division, and §Drug Metabolism and Pharmacokinetics, Glenmark Research Centre, A-607, TTC Industrial Area, MIDC Mahape, Navi Mumbai, 400 709, India
| | - Srinivas Kummari
- Medicinal Chemistry Division, ‡Pharmacology Division, and §Drug Metabolism and Pharmacokinetics, Glenmark Research Centre, A-607, TTC Industrial Area, MIDC Mahape, Navi Mumbai, 400 709, India
| | - Neelima Khairatkar-Joshi
- Medicinal Chemistry Division, ‡Pharmacology Division, and §Drug Metabolism and Pharmacokinetics, Glenmark Research Centre, A-607, TTC Industrial Area, MIDC Mahape, Navi Mumbai, 400 709, India
| | - Malini Bajpai
- Medicinal Chemistry Division, ‡Pharmacology Division, and §Drug Metabolism and Pharmacokinetics, Glenmark Research Centre, A-607, TTC Industrial Area, MIDC Mahape, Navi Mumbai, 400 709, India
| | - Daisy M. Shah
- Medicinal Chemistry Division, ‡Pharmacology Division, and §Drug Metabolism and Pharmacokinetics, Glenmark Research Centre, A-607, TTC Industrial Area, MIDC Mahape, Navi Mumbai, 400 709, India
| | - Ratika S. Sapalya
- Medicinal Chemistry Division, ‡Pharmacology Division, and §Drug Metabolism and Pharmacokinetics, Glenmark Research Centre, A-607, TTC Industrial Area, MIDC Mahape, Navi Mumbai, 400 709, India
| | - Srinivas Gullapalli
- Medicinal Chemistry Division, ‡Pharmacology Division, and §Drug Metabolism and Pharmacokinetics, Glenmark Research Centre, A-607, TTC Industrial Area, MIDC Mahape, Navi Mumbai, 400 709, India
| | - Praveen K. Gupta
- Medicinal Chemistry Division, ‡Pharmacology Division, and §Drug Metabolism and Pharmacokinetics, Glenmark Research Centre, A-607, TTC Industrial Area, MIDC Mahape, Navi Mumbai, 400 709, India
| | - Girish S. Gudi
- Medicinal Chemistry Division, ‡Pharmacology Division, and §Drug Metabolism and Pharmacokinetics, Glenmark Research Centre, A-607, TTC Industrial Area, MIDC Mahape, Navi Mumbai, 400 709, India
| | - Satyawan B. Jadhav
- Medicinal Chemistry Division, ‡Pharmacology Division, and §Drug Metabolism and Pharmacokinetics, Glenmark Research Centre, A-607, TTC Industrial Area, MIDC Mahape, Navi Mumbai, 400 709, India
| | - Rambabu Pattem
- Medicinal Chemistry Division, ‡Pharmacology Division, and §Drug Metabolism and Pharmacokinetics, Glenmark Research Centre, A-607, TTC Industrial Area, MIDC Mahape, Navi Mumbai, 400 709, India
| | - Abraham Thomas
- Medicinal Chemistry Division, ‡Pharmacology Division, and §Drug Metabolism and Pharmacokinetics, Glenmark Research Centre, A-607, TTC Industrial Area, MIDC Mahape, Navi Mumbai, 400 709, India
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18
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Hu E, Chen N, Bourbeau MP, Harrington PE, Biswas K, Kunz RK, Andrews KL, Chmait S, Zhao X, Davis C, Ma J, Shi J, Lester-Zeiner D, Danao J, Able J, Cueva M, Talreja S, Kornecook T, Chen H, Porter A, Hungate R, Treanor J, Allen JR. Discovery of clinical candidate 1-(4-(3-(4-(1H-benzo[d]imidazole-2-carbonyl)phenoxy)pyrazin-2-yl)piperidin-1-yl)ethanone (AMG 579), a potent, selective, and efficacious inhibitor of phosphodiesterase 10A (PDE10A). J Med Chem 2014; 57:6632-41. [PMID: 25062128 DOI: 10.1021/jm500713j] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
We report the identification of a PDE10A clinical candidate by optimizing potency and in vivo efficacy of promising keto-benzimidazole leads 1 and 2. Significant increase in biochemical potency was observed when the saturated rings on morpholine 1 and N-acetyl piperazine 2 were changed by a single atom to tetrahydropyran 3 and N-acetyl piperidine 5. A second single atom modification from pyrazines 3 and 5 to pyridines 4 and 6 improved the inhibitory activity of 4 but not 6. In the in vivo LC-MS/MS target occupancy (TO) study at 10 mg/kg, 3, 5, and 6 achieved 86-91% occupancy of PDE10A in the brain. Furthermore, both CNS TO and efficacy in PCP-LMA behavioral model were observed in a dose dependent manner. With superior in vivo TO, in vivo efficacy and in vivo PK profiles in multiple preclinical species, compound 5 (AMG 579) was advanced as our PDE10A clinical candidate.
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Affiliation(s)
- Essa Hu
- Department of Medicinal Chemistry, ‡Department of Molecular Structure and Characterization, §Department of Pharmacokinetics and Drug Metabolism, ∥Department of Neuroscience, Amgen Inc. , One Amgen Center Drive, Thousand Oaks, California 93012-1799, United States
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