1
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Lin LC, Suresh S, Lin KW, Kavala V, Yao CF. One-Pot Knoevenagel/Imination/6π-Azaelectrocyclization Sequence for the Synthesis of Disubstituted Nicotinonitriles. J Org Chem 2023. [PMID: 37437261 DOI: 10.1021/acs.joc.3c00929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/14/2023]
Abstract
We report on a copper-catalyzed three-component reaction for the synthesis of disubstituted nicotinonitriles using 3-bromopropenals, benzoylacetonitriles, and ammonium acetate (NH4OAc). The Knoevenagel-type condensation of 3-bromopropenals with benzoylacetonitriles gives δ-bromo-2,4-dienones that contain strategically placed functional groups that react with the ammonia generated in situ to give the corresponding azatrienes. These azatrienes can then be transformed into trisubstituted pyridines under the reaction conditions via a reaction sequence involving 6π-azaelectrocyclization and aromatization.
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Affiliation(s)
- Li-Chun Lin
- Department of Chemistry, National Taiwan Normal University, No. 88, Sec. 4, Ting-Zhou Road, Taipei 11677, Taiwan, R.O.C
| | - Sundaram Suresh
- Department of Chemistry, National Taiwan Normal University, No. 88, Sec. 4, Ting-Zhou Road, Taipei 11677, Taiwan, R.O.C
| | - Kun-Wu Lin
- Department of Chemistry, National Taiwan Normal University, No. 88, Sec. 4, Ting-Zhou Road, Taipei 11677, Taiwan, R.O.C
| | - Veerababurao Kavala
- Department of Chemistry, National Taiwan Normal University, No. 88, Sec. 4, Ting-Zhou Road, Taipei 11677, Taiwan, R.O.C
| | - Ching-Fa Yao
- Department of Chemistry, National Taiwan Normal University, No. 88, Sec. 4, Ting-Zhou Road, Taipei 11677, Taiwan, R.O.C
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2
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Ahmed EA, Elgemeie GH, Azzam RA. Synthesis of new sulfapyrimidine and pyrazolo[1,5- a]pyrimidine derivatives. SYNTHETIC COMMUN 2023. [DOI: 10.1080/00397911.2023.2175694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Affiliation(s)
- Ebtsam A. Ahmed
- Department of Chemistry, Faculty of Science, Helwan University, Cairo, Egypt
- Department of Chemistry, College of Science, King Faisal University, Al-Hofuf, Saudi Arabia
| | - Galal H. Elgemeie
- Department of Chemistry, Faculty of Science, Helwan University, Cairo, Egypt
| | - Rasha A. Azzam
- Department of Chemistry, Faculty of Science, Helwan University, Cairo, Egypt
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3
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Hammouda MM, Gaffer HE, Elattar KM. Insights into the medicinal chemistry of heterocycles integrated with a pyrazolo[1,5- a]pyrimidine scaffold. RSC Med Chem 2022; 13:1150-1196. [PMID: 36325400 PMCID: PMC9580358 DOI: 10.1039/d2md00192f] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Accepted: 08/25/2022] [Indexed: 09/10/2023] Open
Abstract
Pyrazolo[1,5-a]pyrimidines are the dominant motif of many drugs; for instance, zaleplon and indiplon are sedative agents and ocinaplon was identified as an anxiolytic agent. The importance of this class of compounds lies in its varied and significant biological activities, and accordingly, considerable methods have been devised to prepare these compounds. Hence, other derivatives of this class of compounds were prepared by substitution reactions with different nucleophiles exploiting the activity of groups linked to the ring carbon and nitrogen atoms. The methods used vary through the condensation reactions of the aminopyrazoles with 1,2-allenic, enaminonitriles, enaminones, 1,3-diketones, unsaturated nitriles, or unsaturated ketones. Alternatively, these compounds are prepared through the reactions of acyclic reagents, as these methods were recently developed efficiently with high yields. The current review highlighted the recent progress of the therapeutic potential of pyrazolo[1,5-a]pyrimidines as antimicrobial, anticancer, antianxiety, anti-proliferative, analgesic, and antioxidant agents, carboxylesterase, translocator protein and PDE10A inhibitors, and selective kinase inhibitors.
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Affiliation(s)
- Mohamed M Hammouda
- Department of Chemistry, College of Science and Humanities in Al-Kharj, Prince Sattam Bin Abdulaziz University Al-Kharj 11942 Saudi Arabia
- Chemistry Department, Faculty of Science, Mansoura University El-Gomhoria Street Mansoura 35516 Egypt
| | - Hatem E Gaffer
- Dyeing and Printing Department, Textile Research Division, National Research Center Dokki Cairo 12622 Egypt
| | - Khaled M Elattar
- Unit of Genetic Engineering and Biotechnology, Faculty of Science, Mansoura University El-Gomhoria Street Mansoura 35516 Egypt +201010655354
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4
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Synthesis, spectroscopic, anti-bacterial activity, molecular docking, ADMET, toxicity and DNA binding studies of divalent metal complexes of pyrazole-3-one azo ligand. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133252] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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5
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Stefanello FS, Kappenberg YG, Araújo JN, Franceschini SZ, Martins MA, Zanatta N, Iglesias BA, Bonacorso HG. Trifluoromethyl-substituted aryldiazenyl-pyrazolo[1,5-a]pyrimidin-2-amines: Regioselective synthesis, structure, and optical properties. J Fluor Chem 2022. [DOI: 10.1016/j.jfluchem.2022.109967] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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6
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Asati V, Anant A, Patel P, Kaur K, Gupta GD. Pyrazolopyrimidines as anticancer agents: A review on structural and target-based approaches. Eur J Med Chem 2021; 225:113781. [PMID: 34438126 DOI: 10.1016/j.ejmech.2021.113781] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 07/31/2021] [Accepted: 08/13/2021] [Indexed: 11/17/2022]
Abstract
Pyrazolopyrimidine scaffold is one of the privileged heterocycles in drug discovery. This scaffold produced numerous biological activities in which anticancer is important one. Previous studies showed its importance in interactions with various receptors such as growth factor receptor, TGFBR2 gene, CDK2/cyclin E and Abl kinase, adenosine receptor, calcium-dependent Protein Kinase, Pim-1 kinase, Potent Janus kinase 2, BTK kinase, P21-activated kinase 1, extracellular signal-regulated kinase 2, histone lysine demethylase and Human Kinesin-5. However, there is a need of numerous studies for the discovery of target based potential compounds. The structure activity relationship studies may help to explore the generation of potential compounds in short time period. Therefore, in the present review we tried to explore the structural aspects of Pyrazolopyrimidine with their structure activity relationship against various targets for the development of potential compounds. The current review is the compilation of significant advances made on Pyrazolopyrimidines reported between 2015 and 2020.
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Affiliation(s)
- Vivek Asati
- Department of Pharmaceutical Chemistry, ISF College of Pharmacy, Moga, Punjab, India.
| | - Arjun Anant
- Department of Pharmaceutical Chemistry, ISF College of Pharmacy, Moga, Punjab, India
| | - Preeti Patel
- Department of Pharmaceutical Chemistry, ISF College of Pharmacy, Moga, Punjab, India
| | - Kamalpreet Kaur
- Department of Pharmaceutical Chemistry, ISF College of Pharmacy, Moga, Punjab, India
| | - G D Gupta
- Department of Pharmaceutics, ISF College of Pharmacy, Moga, Punjab, India
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7
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Elattar KM, El-Mekabaty A. Bicyclic 5-6 Systems: Comprehensive Synthetic Strategies for the Annulations of Pyrazolo[ 1,5-a]pyrimidines. Curr Org Synth 2021; 18:547-586. [PMID: 33966620 DOI: 10.2174/1570179418666210509015108] [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: 12/30/2020] [Revised: 03/16/2021] [Accepted: 03/25/2021] [Indexed: 11/22/2022]
Abstract
Pyrazolopyrimidines are a privileged class of 5-6 bicyclic systems with three or four nitrogen atoms, including four possible isomeric structures. The significance of this class of compounds is that they can be applied in medical and pharmaceutical fields due to their unlimited biological aptitude, hence it is the basic skeleton of several synthetic drugs. The current review aimed to highlight all the synthetic routes that have been applied to construct the pyrazolo[1,5-a]pyrimidine ring systems up to date. The sections in this study included the synthesis of pyrazolo[1,5- a]pyrimidines by condensation reactions of 5-aminopyrazoles with each of β-diketones, 1,5-diketones, β- ketoaldehydes, α-cyanoaldehydes, β-enaminones, enamines, enaminonitriles, ethers, with unsaturated ketones, unsaturated thiones, unsaturated esters, unsaturated dienones "1,2-allenic", unsaturated aldehydes, unsaturated imines, and unsaturated nitriles. The routes adopted to synthesize this class of heterocyclic compounds were extended for ring construction from acyclic reagents and multicomponent reactions under catalytic or catalyst-free conditions.
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Affiliation(s)
- Khaled M Elattar
- 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
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8
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Liu R, Zhang S, Huang M, Guo Z, Li L, Li M, Wu L, Guan Q, Zhang W. Design, synthesis and bioevaluation of 2,7-diaryl-pyrazolo[1,5-a]pyrimidines as tubulin polymerization inhibitors. Bioorg Chem 2021; 115:105220. [PMID: 34352709 DOI: 10.1016/j.bioorg.2021.105220] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 07/19/2021] [Accepted: 07/25/2021] [Indexed: 11/26/2022]
Abstract
Two series of 2,7-diaryl-pyrazolo[1,5-a]pyrimidines as tubulin polymerization inhibitors were designed to restrict bioactive configuration of (E,Z)-vinylogous CA-4. All of the target compounds were synthesized and then evaluated for their in vitro antiproliferative activities against three cancer cell lines (MCF-7, SGC-7901 and A549). Among them, 6d exhibited the most potent antiproliferative activity against the MCF-7 with IC50 value of 0.047 μM. Moreover, 6d significantly inhibited tubulin polymerization, disrupted microtubule networks, arrested cell cycle at G2/M phase, induced apoptosis and hindered cancer cell migration. Colchicine competition assay and molecular docking studies suggested that 6d could interact with tubulin by binding to the colchicine site.
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Affiliation(s)
- Runlai Liu
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenhe District, Shenyang 110016, China
| | - Shuai Zhang
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenhe District, Shenyang 110016, China
| | - Mingxin Huang
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenhe District, Shenyang 110016, China
| | - Zhenpeng Guo
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenhe District, Shenyang 110016, China
| | - Long Li
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenhe District, Shenyang 110016, China
| | - Mi Li
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenhe District, Shenyang 110016, China
| | - Lan Wu
- Department of Geratology, The First Affiliated Hospital, Chinese Medical University, Shenyang 110001, China.
| | - Qi Guan
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenhe District, Shenyang 110016, China.
| | - Weige Zhang
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenhe District, Shenyang 110016, China.
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9
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Zhu R, Reddy R, Ding M, Xu M, Deng C, Tadayon S, Li H, Depew K, Lane B. Development and Scale-Up of a Continuous Manufacturing Process for a Hydrazine Condensation Reaction. Org Process Res Dev 2021. [DOI: 10.1021/acs.oprd.0c00424] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ruiheng Zhu
- Shanghai SynTheAll Pharmaceutical Company Limited (“STA”), WaiGaoQiao Free Trade Zone, Shanghai 200131, People’s Republic of China
| | - Ramesh Reddy
- Shanghai SynTheAll Pharmaceutical Company Limited (“STA”), WaiGaoQiao Free Trade Zone, Shanghai 200131, People’s Republic of China
| | - Man Ding
- Shanghai SynTheAll Pharmaceutical Company Limited (“STA”), WaiGaoQiao Free Trade Zone, Shanghai 200131, People’s Republic of China
| | - Ming Xu
- Shanghai SynTheAll Pharmaceutical Company Limited (“STA”), WaiGaoQiao Free Trade Zone, Shanghai 200131, People’s Republic of China
| | - Chaoyi Deng
- Shanghai SynTheAll Pharmaceutical Company Limited (“STA”), WaiGaoQiao Free Trade Zone, Shanghai 200131, People’s Republic of China
| | - Sam Tadayon
- Shanghai SynTheAll Pharmaceutical Company Limited (“STA”), WaiGaoQiao Free Trade Zone, Shanghai 200131, People’s Republic of China
| | - Hui Li
- Agios Pharmaceuticals, Inc., Cambridge, Massachusetts 02139, United States
| | - Kristopher Depew
- Agios Pharmaceuticals, Inc., Cambridge, Massachusetts 02139, United States
| | - Benjamin Lane
- Agios Pharmaceuticals, Inc., Cambridge, Massachusetts 02139, United States
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10
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Rao RN, Chanda K. An assessment study of known pyrazolopyrimidines: Chemical methodology and cellular activity. Bioorg Chem 2020; 99:103801. [PMID: 32278206 DOI: 10.1016/j.bioorg.2020.103801] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 03/22/2020] [Accepted: 03/24/2020] [Indexed: 10/24/2022]
Abstract
Heterocyclic compounds with nitrogen atom play a key role in the normal life cycle of a cell. Pyrazolopyrimidine is a privileged class of nitrogen containing fused heterocyclic compound contributing to a major portion of all lead molecules in medicinal chemistry. The thumbprint of pyrazolopyrimidine as a pharmacophore is always noticeable due to its analogy with the adenine base in DNA. Pyrazolopyrimidines are divided into five types [I, II, III, IV, V] based on the mechanism of action on the specific target conferring a wide scope of research which has accelerated the interest of researchers to investigate its biological profile. In 1956, the anti-cancer activity of pyrazolopyrimidine was evaluated for the first time with appreciable results. Since then, medicinal chemists centered their work on various methods of synthesis and evaluating the biological profile of pyrazolopyrimidine isomers. This report consists of novel methodologies followed to synthesize pyrazolopyrimidine isomers along with a note on their biological significance. To the best of our knowledge, this review article will be first of its kind to encompass different synthetic procedures along with anti-cancer, kinase inhibition, phosphodiesterase inhibition and receptor blocking activity of pyrazolopyrimidine moieties. IC50 values of potent compounds are added wherever necessary to understand the suitability of pyrazolopyrimidine skeletons for a specific biological activity.
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Affiliation(s)
- R Nishanth Rao
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore 632014, India
| | - Kaushik Chanda
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore 632014, India
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11
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Giannouli V, Lougiakis N, Kostakis IK, Pouli N, Marakos P, Skaltsounis AL, Horne DA, Nam S, Gioti K, Tenta R. Design and Synthesis of New Substituted Pyrazolopyridines with Potent Antiproliferative Activity. Med Chem 2020; 16:176-191. [DOI: 10.2174/1573406415666190222130225] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 01/24/2019] [Accepted: 02/08/2019] [Indexed: 12/15/2022]
Abstract
Background:
Purine isosteres are often endowed with interesting pharmacological
properties, due to their involvement in cellular processes replacing the natural purines. Among
these compounds, pyrazolopyridines are under active investigation for potential anticancer properties.
Objective:
Based on previously discovered substituted pyrazolopyridines with promising antiproliferative
activity, we designed and synthesized new, suitably substituted analogues aiming to investigate
their potential activity and contribute to SAR studies of this class of bioactive compounds.
Methods:
The new compounds were synthesized using suitably substituted 2-amino-4-picolines,
which upon ring-closure provided substituted pyrazolo[3,4-c] pyridine-5-carbonitriles that served
as key intermediates for the preparation of the target 3,5,7 trisubstituted derivatives. The antiproliferative
activity of 31 new target derivatives was evaluated against three cancer cell lines (MIA
PaCa-2, PC-3 and SCOV3), whereas cell-cycle perturbations of exponentially growing PC-3 cells,
using three selected derivatives were also performed.
Results:
Eight compounds displayed IC50 values in the low μM range, allowing the extraction of
interesting SAR’s. Two of the most potent compounds against all cell lines share a common pattern,
by accumulating cells at the G0/G1 phase. From this project, a new carboxamidine-substituted
hit has emerged.
Conclusion:
Among the new compounds, those possessing the 3-phenylpyrazolo[3,4-c]pyridine
scaffold, proved to be worth investigating and the majority of them showed strong cytotoxic activity
against all cell lines, with IC50 values ranging from 0.87-4.3 µM. A carboxamidine analogue
that resulted from the synthetic procedure, proved to be highly active against the cancer cells and
could be considered as a useful lead for further optimization.
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Affiliation(s)
- Vassiliki Giannouli
- Division of Pharmaceutical Chemistry, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis-Zografou, Athens 15771, Greece
| | - Nikolaos Lougiakis
- Division of Pharmaceutical Chemistry, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis-Zografou, Athens 15771, Greece
| | - Ioannis K. Kostakis
- Division of Pharmaceutical Chemistry, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis-Zografou, Athens 15771, Greece
| | - Nicole Pouli
- Division of Pharmaceutical Chemistry, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis-Zografou, Athens 15771, Greece
| | - Panagiotis Marakos
- Division of Pharmaceutical Chemistry, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis-Zografou, Athens 15771, Greece
| | - Alexios-Leandros Skaltsounis
- Division of Pharmacognosy & Natural Products Chemistry, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis-Zografou, Athens 15771, Greece
| | - David A. Horne
- Molecular Medicine, Beckman Research Institute, City of Hope Comprehensive Cancer Center, 1500 East Duarte Road, Duarte, CA, 91010, United States
| | - Sangkil Nam
- Molecular Medicine, Beckman Research Institute, City of Hope Comprehensive Cancer Center, 1500 East Duarte Road, Duarte, CA, 91010, United States
| | - Katerina Gioti
- Department of Nutrition & Dietetics, School of Health Sciences and Education, Harokopio University, Athens 17671, Greece
| | - Roxane Tenta
- Department of Nutrition & Dietetics, School of Health Sciences and Education, Harokopio University, Athens 17671, Greece
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Zheng B, Peng Y, Wu W, Ma J, Zhang Y, Guo Y, Sun S, Chen Z, Li Q, Hu G. Synthesis and structure-activity relationships of pyrazolo-[3,4-b]pyridine derivatives as adenosine 5'-monophosphate-activated protein kinase activators. Arch Pharm (Weinheim) 2020; 352:e1900066. [PMID: 31373047 DOI: 10.1002/ardp.201900066] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 04/22/2019] [Accepted: 05/01/2019] [Indexed: 01/06/2023]
Abstract
A series of pyrazolo[3,4-b]pyridine derivatives were designed, synthesized, and evaluated for their activation activity toward adenosine 5'-monophosphate-activated protein kinase (AMPK). According to the enzyme activity, the pyrazole N-H exposure and para substitution on the diphenyl group were proved to be essential for the activation potency. Compound 17f showed equal activation compared with A-769662. In the molecular modeling study, compound 17f exhibited important hydrogen bond interaction with Lys29, Asp88, and Arg83. 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assays on the NRK-49F cell line showed that potent enzyme activators could effectively inhibit cell proliferation, especially for 17f (EC50 [AMPKα1γ1β1] = 0.42 μM, efficacy = 79%; IC50 [NRK-49F cell line] = 0.78 μM). These results might provide new insights to explore novel AMPK activators.
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Affiliation(s)
- Bifeng Zheng
- Department of Medicinal Chemistry, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan, China
| | - Yajun Peng
- Department of Medicinal Chemistry, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan, China
| | - Weihong Wu
- Department of Pharmacy, Shandong Medical University, Jinan, Shandong, China
| | - Junlong Ma
- Department of Medicinal Chemistry, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan, China
| | - Yuzhao Zhang
- Department of Medicinal Chemistry, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan, China
| | - Yu Guo
- Department of Medicinal Chemistry, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan, China
| | - Shengjie Sun
- Department of Medicinal Chemistry, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan, China
| | - Zhuo Chen
- Department of Medicinal Chemistry, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan, China
| | - Qianbin Li
- Department of Medicinal Chemistry, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan, China
| | - Gaoyun Hu
- Department of Medicinal Chemistry, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan, China
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13
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Matada MN, Jathi K. Pyrazole-based azo-metal(II) complexes as potential bioactive agents: synthesis, characterization, antimicrobial, anti-tuberculosis, and DNA interaction studies. J COORD CHEM 2019. [DOI: 10.1080/00958972.2019.1630613] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Mallikarjuna Niluvanji Matada
- Department of PG Studies and Research in Chemistry, School of Chemical Sciences, Kuvempu University, Jnana Sahyadri, Shankaraghatta, Karnataka, India
| | - Keshavayya Jathi
- Department of PG Studies and Research in Chemistry, School of Chemical Sciences, Kuvempu University, Jnana Sahyadri, Shankaraghatta, Karnataka, India
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14
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Atatreh N, Youssef AM, Ghattas MA, Al Sorkhy M, Alrawashdeh S, Al-Harbi KB, El-Ashmawy IM, Almundarij TI, Abdelghani AA, Abd-El-Aziz AS. Anti-inflammatory drug approach: Synthesis and biological evaluation of novel pyrazolo[3,4-d]pyrimidine compounds. Bioorg Chem 2019; 86:393-400. [DOI: 10.1016/j.bioorg.2019.02.014] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 02/03/2019] [Accepted: 02/04/2019] [Indexed: 11/29/2022]
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15
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Shaabani A, Nazeri MT, Afshari R. 5-Amino-pyrazoles: potent reagents in organic and medicinal synthesis. Mol Divers 2018; 23:751-807. [PMID: 30552550 DOI: 10.1007/s11030-018-9902-8] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 12/04/2018] [Indexed: 12/31/2022]
Abstract
5-Amino-pyrazoles have proven to be a class of fascinating and privileged organic tools for the construction of diverse heterocyclic or fused heterocyclic scaffolds. This review presents comprehensively the applications of 5-amino-pyrazoles as versatile synthetic building blocks in the synthesis of remarkable organic molecules with an emphasis on versatile functionalities. Following a brief introduction of synthesis methods, planning strategies to construct organic compounds, particularly diverse heterocyclic scaffolds, such as poly-substituted heterocyclic compounds and fused heterocyclic compounds via 5-amino-pyrazoles, have been summarized. Fused heterocycles are classified as bicyclic, tricyclic, tetracyclic, and spiro-fused pyrazole derivatives. These outstanding compounds synthesized via wide variety of approaches include conventional reactions, one-pot multi-component reactions, cyclocondensation, cascade/tandem protocols, and coupling reactions. 5-Amino-pyrazoles represent a class of promising functional reagents, similar to the biologically active compounds, highlighted with diverse applications especially in the field of pharmaceutics and medicinal chemistry. Notably, this critical review covers the articles published from 1981 to 2018.
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Affiliation(s)
- Ahmad Shaabani
- Faculty of Chemistry, Shahid Beheshti University, G. C., P. O. Box 19396-4716, Tehran, Iran.
| | - Mohammad Taghi Nazeri
- Faculty of Chemistry, Shahid Beheshti University, G. C., P. O. Box 19396-4716, Tehran, Iran
| | - Ronak Afshari
- Faculty of Chemistry, Shahid Beheshti University, G. C., P. O. Box 19396-4716, Tehran, Iran
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One-pot synthesis of spiro(indoline-3,4'-pyrazolo[3,4-b]pyridine)-5'-carbonitriles as p53-MDM2 interaction inhibitors. Future Med Chem 2018; 10:2771-2789. [PMID: 30526032 DOI: 10.4155/fmc-2018-0288] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
AIM Inhibition of P53-mdm2 interaction will lead to cancer cell apoptosis. This strategy was achieved by reported spiro-oxindole derivatives. MATERIALS & METHODS Spiro(indoline-3,4'-pyrazolo[3,4-b]pyridine)-5'-carbonitrile derivatives (4a-i and 9a, b) were synthesized and screened for their in vitro anticancer activity. The most active compounds were subjected to P53-MDM2 inhibitory activity, apoptotic and molecular docking studies. RESULTS & DISCUSSION Compound 4d exhibited potent and broad spectrum of antiproliferative activity with full panel GI50 (MG-MID) value of 3.97 μM. Compounds 4d and 4i inhibited p53-MDM2 protein-protein interaction with IC50 = 52.1 and 95.2 nM, respectively. Compound 4d inhibits the expression of wild p53 in MCF-7 more than mutant p53 in MDA-MB231 at the molecular level. Molecular docking studies illustrated the possible interaction of the target spiro-oxindoles with the p53 binding site on MDM2.
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Zhang X, Huang H. Copper-Catalyzed Oxidative Coupling of AIBN and Ketone-Derived Enoxysilanes to γ-Ketonitriles. Org Lett 2018; 20:4998-5001. [DOI: 10.1021/acs.orglett.8b02154] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xuexia Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, Center for Excellence in Molecular Synthesis, University of Science and Technology of China, Chinese Academy of Sciences, Hefei, 230026, P. R. China
| | - Hanmin Huang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, Center for Excellence in Molecular Synthesis, University of Science and Technology of China, Chinese Academy of Sciences, Hefei, 230026, P. R. China
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, 730000, P. R. China
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18
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El-Kalyoubi SA. Synthesis and anticancer evaluation of some novel pyrimido[5,4-e][1,2,4]triazines and pyrazolo[3,4-d]pyrimidine using DMF-DMA as methylating and cyclizing agent. Chem Cent J 2018; 12:64. [PMID: 29796716 PMCID: PMC5966350 DOI: 10.1186/s13065-018-0424-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2018] [Accepted: 04/30/2018] [Indexed: 01/22/2023] Open
Abstract
Background Described a series of main target compounds pyrimido[5,4-e][1,2,4]triazines is obtained via condensation of 6-hydrazinyluracil with different aromatic aldehydes to give the hydrazones followed by nitrosation with HNO2 then intramolecular cyclization. On the other hand, pyrazolopyrimidines can be obtained by the reaction of hydrazones with dimethylformamide-dimethylacetal (DMF-DMA), DMF-DMA in the presence of DMF or by refluxing the hydrazinyluracil with DMF-DMA in the presence of DMF directly. The newly synthesized compounds are evaluated in vitro for their anticancer activity against human lung carcinoma (A549). Results A newly substituted compounds of benzaldehyde-pyrimidin-4-yl)hydrazones (5a–f), pyrimido[5,4-e][1,2,4]triazines 6a–e, arylethylidenehydrazinylpyrimidine 7a,b and pyrazolopyrimidines 9,11 are screened for cytotoxic activity against human lung carcinoma (A549) cell line. They exhibited a good yield. Compound 6b shows the highest effect with IC50 value 3.6 μM, followed by compounds 9, 5a, 8, 5e, 6e, 5b, 5f, 7a, 5c, 6c, 7b, 6a, 11, 5d and 6d. Conclusion A simple and efficient route is used for the synthesis of pyrimido[5,4-e][1,2,4]triazines and pyrazolopyrimidines. The synthesized compounds are screened for antitumor activity. ![]()
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Affiliation(s)
- Samar A El-Kalyoubi
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy (Girls), Al-Azhar University, Nasr City, Cairo, 11651, Egypt. .,Department of Medical Chemistry, Faculty of Applied Medical Sciences (Female Section), Jazan University, Jazan, 45142, Saudi Arabia.
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19
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Patel AS, Kapuriya NP, Naliapara YT. A Concise [3 + 3] Heteroaromatization Synthetic Strategy Afford Dicarboxamide Functionalized Novel Pyrazolo[1,5- a]Pyrimidines. J Heterocycl Chem 2017. [DOI: 10.1002/jhet.2860] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Anilkumar S. Patel
- Department of Chemistry; Shree Manibhai Virani & Smt. Navalben Virani Science College (Autonomous); Rajkot Gujarat India
| | - Naval P. Kapuriya
- Department of Chemistry; Shree Manibhai Virani & Smt. Navalben Virani Science College (Autonomous); Rajkot Gujarat India
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Ajeesh Kumar A, Bodke YD, Lakra PS, Sambasivam G, Bhat KG. Design, synthesis and anti-cancer evaluation of a novel series of pyrazolo [1, 5-a] pyrimidine substituted diamide derivatives. Med Chem Res 2017. [DOI: 10.1007/s00044-016-1770-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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21
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A.K. AK, Bodke YD, Gowda AN, Sambasivam G, Bhat KG. Design, Synthesis, and Evaluation of the Anticancer Properties of a Novel Series of Imidazolone Fused Pyrazolo[1,5‐a]pyrimidine Derivatives. J Heterocycl Chem 2016. [DOI: 10.1002/jhet.2786] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Ajeesh Kumar A.K.
- Anthem Biosciences Pvt. Ltd. #49 Bommasandra Industrial Area Bangalore 560 099 Karnataka India
| | - Yadav D. Bodke
- Department of PG Studies and Research in Industrial Chemistry, School of Chemical SciencesKuvempu University Shankaraghatta Shimoga Karnataka 577 451 India
| | - Ashwath N. Gowda
- Anthem Biosciences Pvt. Ltd. #49 Bommasandra Industrial Area Bangalore 560 099 Karnataka India
| | - Ganesh Sambasivam
- Anthem Biosciences Pvt. Ltd. #49 Bommasandra Industrial Area Bangalore 560 099 Karnataka India
| | - Kishore G. Bhat
- Department of MicrobiologyMaratha Mandal's NGH Institute of Dental Sciences & Research Centre Belgaum Karnataka 590 010 India
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22
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Cherukupalli S, Karpoormath R, Chandrasekaran B, Hampannavar GA, Thapliyal N, Palakollu VN. An insight on synthetic and medicinal aspects of pyrazolo[1,5-a]pyrimidine scaffold. Eur J Med Chem 2016; 126:298-352. [PMID: 27894044 DOI: 10.1016/j.ejmech.2016.11.019] [Citation(s) in RCA: 97] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Revised: 10/19/2016] [Accepted: 11/08/2016] [Indexed: 11/26/2022]
Abstract
Pyrazolo[1,5-a]pyrimidine scaffold is one of the privileged hetrocycles in drug discovery. Its application as a buliding block for developing drug-like candidates has displayed broad range of medicinal properties such as anticancer, CNS agents, anti-infectious, anti-inflammatory, CRF1 antagonists and radio diagnostics. The structure-activity relationship (SAR) studies have acquired greater attention amid medicinal chemists, and many of the lead compounds were derived for various disease targets. However, there is plenty of room for the medicinal chemists to further exploit this privileged scaffold in developing potential drug candidates. The present review briefly outlines relevant synthetic strategies employed for pyrazolo[1,5-a]pyrimidine derivatives. It also extensively reveals significant biological properties along with SAR studies. To the best of our understanding current review is the first attempt made towards the compilation of significant advances made on pyrazolo[1,5-a]pyrimidines reported since 1980s.
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Affiliation(s)
- Srinivasulu Cherukupalli
- Department of Pharmaceutical Chemistry, College of Health Sciences, University of KwaZulu-Natal, Durban 4000, South Africa
| | - Rajshekhar Karpoormath
- Department of Pharmaceutical Chemistry, College of Health Sciences, University of KwaZulu-Natal, Durban 4000, South Africa.
| | - Balakumar Chandrasekaran
- Department of Pharmaceutical Chemistry, College of Health Sciences, University of KwaZulu-Natal, Durban 4000, South Africa
| | - Girish A Hampannavar
- Department of Pharmaceutical Chemistry, College of Health Sciences, University of KwaZulu-Natal, Durban 4000, South Africa
| | - Neeta Thapliyal
- Department of Pharmaceutical Chemistry, College of Health Sciences, University of KwaZulu-Natal, Durban 4000, South Africa
| | - Venkata Narayana Palakollu
- Department of Pharmaceutical Chemistry, College of Health Sciences, University of KwaZulu-Natal, Durban 4000, South Africa
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23
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Ajeesh Kumar AK, Nair KB, Bodke YD, Sambasivam G, Bhat KG. Design, synthesis, and evaluation of the anticancer properties of a novel series of carboxamides, sulfonamides, ureas, and thioureas derived from 1,2,4-oxadiazol-3-ylmethyl-piperazin-1-yl substituted with pyrazolo[1,5-a]pyrimidine derivatives. MONATSHEFTE FUR CHEMIE 2016. [DOI: 10.1007/s00706-016-1723-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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24
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Ebrahimpour Z, Shiri A, Bakavoli M, Seyedi SM, Bahreini M, Oroojalian F. Microwave-assisted synthesis and antibacterial evaluation of new derivatives of 1,2-dihydro-3H-pyrazolo[3,4-d]pyrimidin-3-one. HETEROCYCL COMMUN 2016. [DOI: 10.1515/hc-2015-0145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractSynthesis of new 1,2-dihydro-3H-pyrazolo[3,4-d] pyrimidin-3-ones4–6starting with ethyl 4-hydroxy-2-methylthio-pyrimidine-5-carboxylate (1) under classical heating and microwave-induced conditions is reported. The antibacterial activities of the synthesized compounds were evaluated using chloramphenicol and streptomycin as reference drugs.
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Affiliation(s)
- Zahra Ebrahimpour
- 1Faculty of Science, Department of Chemistry, Ferdowsi University of Mashhad, 91775-1436 Mashhad, Iran (Islamic Republic of)
| | - Ali Shiri
- 1Faculty of Science, Department of Chemistry, Ferdowsi University of Mashhad, 91775-1436 Mashhad, Iran (Islamic Republic of)
| | - Mehdi Bakavoli
- 1Faculty of Science, Department of Chemistry, Ferdowsi University of Mashhad, 91775-1436 Mashhad, Iran (Islamic Republic of)
| | - Seyed Mohammad Seyedi
- 1Faculty of Science, Department of Chemistry, Ferdowsi University of Mashhad, 91775-1436 Mashhad, Iran (Islamic Republic of)
| | - Masoumeh Bahreini
- 2Faculty of Science, Department of Biology, Ferdowsi University of Mashhad, Mashhad, Iran (Islamic Republic of)
| | - Fatemeh Oroojalian
- 3Faculty of New Sciences and Technologies, Department of Life Science Engineering, University of Tehran, 14395-1561 Tehran, Iran (Islamic Republic of)
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25
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V. Dolzhenko A, Phei Lin Lim F, Kee Kow K, Hwa Yeo E, Chuen Chow S. Synthesis and Antileukemic Activity of New Fluorinated 5-Aza-9-deazapurines. HETEROCYCLES 2016. [DOI: 10.3987/com-16-13464] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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26
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Shen H, Li J, Liu Q, Pan J, Huang R, Xiong Y. Umpolung Strategy for Synthesis of β-Ketonitriles through Hypervalent Iodine-Promoted Cyanation of Silyl Enol Ethers. J Org Chem 2015; 80:7212-8. [DOI: 10.1021/acs.joc.5b01102] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hang Shen
- School
of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
| | - Jiaqiang Li
- School
of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
| | - Qing Liu
- School
of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
| | - Jing Pan
- School
of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
| | - Ruofeng Huang
- School
of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
| | - Yan Xiong
- School
of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
- State
Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
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27
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Devi AS, Kaping S, Vishwakarma JN. A facile environment-friendly one-pot two-step regioselective synthetic strategy for 3,7-diarylpyrazolo[1,5-a]pyrimidines related to zaleplon and 3,6-diarylpyrazolo[1,5-a]pyrimidine-7-amines assisted by KHSO₄ in aqueous media. Mol Divers 2015; 19:759-71. [PMID: 26016724 DOI: 10.1007/s11030-015-9606-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Accepted: 05/16/2015] [Indexed: 12/01/2022]
Abstract
3-Aminopyrazoles required for the synthesis of pyrazolo[1,5-a]pyrimidines were obtained by the reaction of enaminonitriles with hydrazine hydrate. The resulting aminopyrazoles are reacted with formylated acetophenones under reflux at [Formula: see text] assisted by KHSO[Formula: see text] in aqueous media to form regioselectively 3,7-diarylpyrazolo[1,5-a]pyrimidines and 3,6-diarylpyrazolo[1,5-a]pyrimidine-7-amines. X-ray crystallography of selected compounds 5b and 7i further confirmed the regioselective formation of these products.
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Affiliation(s)
- Asem Satyapati Devi
- Organic Research Lab., Department of Chemical Science, Assam Don Bosco University, Airport Road-Azara, Guwahati, Assam, 781017, India
| | - Shunan Kaping
- Organic Research Lab., Department of Chemical Science, Assam Don Bosco University, Airport Road-Azara, Guwahati, Assam, 781017, India
| | - Jai Narain Vishwakarma
- Organic Research Lab., Department of Chemical Science, Assam Don Bosco University, Airport Road-Azara, Guwahati, Assam, 781017, India.
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28
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Wen LR, Yuan WK, Li M. Dual Roles of β-Oxodithioesters in the Copper-Catalyzed Synthesis of Benzo[e]pyrazolo[1,5-c][1,3]thiazine Derivatives. J Org Chem 2015; 80:4942-9. [DOI: 10.1021/acs.joc.5b00288] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Li-Rong Wen
- State Key Laboratory Base
of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Wen-Kui Yuan
- State Key Laboratory Base
of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Ming Li
- State Key Laboratory Base
of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
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29
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Lim FPL, Dolzhenko AV. 4-Amino-substituted pyrazolo[1,5-a][1,3,5]triazin-2-amines: a new practical synthesis and biological activity. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.10.057] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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30
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Lim FPL, Luna G, Dolzhenko AV. A new, one-pot, multicomponent synthesis of 5-aza-9-deaza-adenines under microwave irradiation. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.07.105] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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31
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Li M, Zhao BX. Progress of the synthesis of condensed pyrazole derivatives (from 2010 to mid-2013). Eur J Med Chem 2014; 85:311-40. [PMID: 25104650 DOI: 10.1016/j.ejmech.2014.07.102] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2014] [Revised: 07/25/2014] [Accepted: 07/26/2014] [Indexed: 01/08/2023]
Abstract
Condensed pyrazole derivatives are important heterocyclic compounds due to their excellent biological activities and have been widely applied in pharmaceutical and agromedical fields. In recent years, numerous condensed pyrazole derivatives have been synthesized and advanced to clinic studies with various biological activities. In this review, we summarized the reported synthesis methods of condensed pyrazole derivatives from 2010 until now. All compounds are divided into three parts according to the rings connected to pyrazole-ring, i.e. [5, 5], [5,F 6], and [5, 7]-condensed pyrazole derivatives. The biological activities and applications in pharmaceutical fields are briefly introduced to offer an orientation for the design and synthesis of condensed pyrazole derivatives with good biological activities.
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Affiliation(s)
- Meng Li
- Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China
| | - Bao-Xiang Zhao
- Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China.
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Kaur N. Benign Approaches for the Microwave-assisted Synthesis of Five-membered 1,2-N,N-heterocycles. J Heterocycl Chem 2014. [DOI: 10.1002/jhet.2129] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Navjeet Kaur
- Department of Chemistry; Banasthali University; Banasthali 304022 Rajasthan India
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33
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Discovery of mixed type thymidine phosphorylase inhibitors endowed with antiangiogenic properties: Synthesis, pharmacological evaluation and molecular docking study of 2-thioxo-pyrazolo[1,5-a][1,3,5]triazin-4-ones. Part II. Eur J Med Chem 2014; 78:294-303. [DOI: 10.1016/j.ejmech.2014.03.063] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2014] [Revised: 03/18/2014] [Accepted: 03/20/2014] [Indexed: 11/23/2022]
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34
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Tikhomirov AS, Shchekotikhin AE, Luzikov YN, Korolev AM, Preobrazhenskaya MN. Heterocyclic Analogs of 5,12-Naphthacene-Quinone. 12. Synthesis of 2-Substituted Derivatives of 4,11-Dimethoxy-5,10-Dioxo-Anthra[2,3-b]Furan-3-Carboxylic Acids. Chem Heterocycl Compd (N Y) 2014. [DOI: 10.1007/s10593-014-1471-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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35
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Abdel-Latif E, Khalil AGM. Efficient synthesis of some new functionalized 3-amino- and 5-aminopyrazoles derivatives. RESEARCH ON CHEMICAL INTERMEDIATES 2014. [DOI: 10.1007/s11164-014-1551-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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36
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Bera H, Chui WK, Gupta SD, Dolzhenko AV, Sun L. Synthesis, in vitro evaluation of thymidine phosphorylase inhibitory activity, and in silico study of 1,3,5-triazin-2,4-dione and its fused analogues. Med Chem Res 2013. [DOI: 10.1007/s00044-013-0589-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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37
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Lee KR, Song JS, Chae YJ, Kim MS, Choi SH, Jeon DJ, Bae MA, Ahn SH. Determination of 2-aryl-7(3',4'-dialkoxyphenyl)-pyrazolo [1,5-alpha] pyrimidine, a novel phosphodiesterase-4 inhibitor, in rat plasma by liquid chromatography-tandem mass spectrometry. J Chromatogr Sci 2012; 51:517-23. [PMID: 23135133 DOI: 10.1093/chromsci/bms173] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
A method for assaying a novel phosphodiesterase-4 inhibitor, 2-aryl-7(3',4'-dialkoxyphenyl)-pyrazolo [1,5-alpha] pyrimidine (PDE-310), was developed and validated in rat plasma using liquid chromatography-tandem mass spectrometry (LC-MS-MS). Rat plasma samples were processed by liquid-liquid extraction with ethyl acetate and injected onto the LC-MS-MS system for quantification. PDE-310 and imipramine (i.e., internal standard) were separated using a Gemini C18 column with mixture of acetonitrile and 0.1% formic acid (70:30, v/v) as the mobile phase. The ion transitions monitored were m/z 425.0 → 331.0 for PDE-310 and m/z 281.3 → 86.1 for imipramine in the multiple-reaction monitoring mode. The detector response was specific and linear for PDE-310 concentrations in the range of 0.1-50 µg/mL. The intra-day and inter-day precision and accuracy of the method were determined to be within the acceptance criteria for assay validation guidelines. The recoveries were approximately 85.7 and 88.2% from rat plasma for PDE-310 and imipramine, respectively. PDE-310 was stable under various processing and handling conditions. PDE-310 concentrations were readily measured in rat plasma samples up to 8 h after an intravenous administration of PDE-310, suggesting that the assay is practically useful.
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Affiliation(s)
- Kyeong-Ryoon Lee
- Drug Discovery Platform Technology Team, Korea Research Institute of Chemical Technology, Daejeon 305-600, Republic of Korea
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Park CM, Jeon DJ. Stereoselective synthesis of novel pyrazole derivatives using tert-butansulfonamide as a chiral auxiliary. Org Biomol Chem 2012; 10:2613-20. [PMID: 22371117 DOI: 10.1039/c2ob06495b] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel chiral pyrazole derivative was developed by our research program as a potent PDE4 inhibitor for the treatment of anti-inflammatory diseases, such as asthma and chronic obstructive pulmonary disease. The asymmetric synthesis of the inhibitors carrying the pyrazole moiety, including nitrogen directly bonded to a chiral center, through a novel approach is disclosed. The key steps of the synthetic sequence begin with the preparation of chiral toluenesulfinyl imine by the condensation of (R)- and (S)-tert-butanesulfinamide with an aldehyde. Next, a corresponding chiral amine synthesis by a stereoselective addition reaction of 4-picolyl lithium to the chiral toluenesulfinyl imine is performed, followed by desulfination. The preparation of the cis-type enaminone from the addition of the enaminone to the corresponding chiral amine is then accomplished, with further transformation into the pyrazole derivatives through the amination of the enaminones and subsequent dehydro-cyclization. A total of 8 steps are completed to produce a 5.5% yield (100% ee).
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Affiliation(s)
- Chang Min Park
- Bio-Organic Science Division, Korea Research Institute of Chemical Technology, P.O. Box 9, Sinseongro, Yuseong, Daejeon 305-600, Korea
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Sayed AZ, Aboul-Fetouh MS, Nassar HS. Synthesis, biological activity and dyeing performance of some novel azo disperse dyes incorporating pyrazolo[1,5-a]pyrimidines for dyeing of polyester fabrics. J Mol Struct 2012. [DOI: 10.1016/j.molstruc.2011.11.046] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Aly AA, El-Karim IAG. Facile Synthesis of New Pyrazolopyrimidine Derivatives of Potential Biosignificant Interest. JOURNAL OF THE KOREAN CHEMICAL SOCIETY-DAEHAN HWAHAK HOE JEE 2011. [DOI: 10.5012/jkcs.2011.55.5.781] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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41
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Zheng LW, Shao JH, Zhao BX, Miao JY. Synthesis of novel pyrazolo[1,5-a]pyrazin-4(5H)-one derivatives and their inhibition against growth of A549 and H322 lung cancer cells. Bioorg Med Chem Lett 2011; 21:3909-13. [PMID: 21640587 DOI: 10.1016/j.bmcl.2011.05.035] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2011] [Revised: 04/25/2011] [Accepted: 05/10/2011] [Indexed: 12/21/2022]
Abstract
A series of substituted pyrazolo[1,5-a]pyrazin-4(5H)-one was synthesized by the reaction of ethyl 1-(2-oxo-2-phenylethyl)-3-phenyl-1H-pyrazole-5-carboxylate derivatives and 2-(2-aminoethoxy)ethanol or 2-morpholinoethanamine in the condition of microwave-assisted one-step and solvent-free in a good yield. The structures of the compounds were determined by IR, (1)H NMR and mass spectroscopy. In addition, a representative single-crystal structure was characterized by using X-ray diffraction analysis. Preliminary biological evaluation showed that the compounds could inhibit the growth of A549 and H322 cells in dosage-dependent manners.
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Affiliation(s)
- Liang-Wen Zheng
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
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42
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Song JS, Rho HJ, Park JS, Kim MS, Lee BH, Seo JW, Jeon DJ, Cheon HG, Ahn SH, Kwon KI, Bae MA. Preclinical pharmacokinetics of PDE-310, a novel PDE4 inhibitor. Drug Metab Pharmacokinet 2010; 26:192-200. [PMID: 21206135 DOI: 10.2133/dmpk.dmpk-10-rg-065] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A novel phosphodiesterase-4 inhibitor, 2-aryl-7(3',4'-dialkoxyphenyl)-pyrazolo[1,5-alpha] pyrimidine (PDE-310), has been synthesized for the treatment of respiratory diseases. We conducted in vitro and in vivo studies to characterize the pharmacokinetics of PDE-310. The high liver microsomal stability and low inhibitory potency against CYP isoforms of PDE-310 suggested a low first-pass effect and high bioavailability. PDE-310 exhibited high Caco-2 cell permeability in the absorptive direction (apparent permeability coefficients, ∼20 × 10(-6) cm/s), with higher transport in the secretory direction, giving efflux ratios of 3.9 and 2.6 at 5 and 10 µM, respectively. In addition, the high efflux ratio and improved absorption on treatment with efflux transporter inhibitors such as verapamil and MK-571 indicated the involvement of P-gp, BCRP and MRP2 in intestinal transport. PDE-310 bound strongly to human plasma proteins, whereas significantly more PDE-310 (27-34%) was free in rat plasma. Following intravenous administration, nonlinear elimination of PDE-310 was observed at the tested dose ranges (K(m), 0.87 µg/mL; V(max), 0.3 mg·h(-1)·kg(-1)). Following oral PDE-310 administration, dose-normalized AUC and T(max) increased significantly in a dose-dependent manner. PDE-310 exhibited high oral bioavailability (>70%) and was distributed well to various tissues except brain and testis.
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Affiliation(s)
- Jin Sook Song
- Drug Discovery Platform Technology Team, Division of Bio-organic Science, Korea Research Institute of Chemical Technology, Republic of Korea
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