1
|
Abdelmoniem AM, Ramadan MA, Ghozlan SAS, Butenschön H, Abdelhamid IA. New Azacycles by One-Pot Three-Component Hantzsch-Like Synthesis of Tetra(hexa)azacyclopenta[a]anthracenes, Tetraazaindeno[5,4-b]fluorenes, and Oxatetraazacyclopenta[m]tetraphenes. ChemistryOpen 2023; 12:e202300009. [PMID: 36855319 PMCID: PMC9975464 DOI: 10.1002/open.202300009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 02/04/2023] [Indexed: 03/02/2023] Open
Abstract
New Azacycles by One-Pot Three-Component Hantzsch-Like Synthesis of Tetra(hexa)azacyclopenta[a]anthracenes, Tetraazaindeno[5,4-b]fluorenes, and Oxatetraazacyclopenta[m]tetraphenes (H. Butenschön, I. A. Abdelhamid et al.) #OpenAccess Multicomponent reactions (MCRs) are envisaged as an entry point for the synthesis of heterocyclic compounds with interesting biological activities. An efficient approach to annelated tetra(hexa)azacyclopenta[a]anthracenes, tetraazaindeno[5,4-b]fluorenes, and oxatetraazacyclopenta[m]tetraphene was accomplished using a three-component reaction involving 7-amino-2-methyl-3-phenylpyrazolo[1,5-a]pyrimidin-5-one with aromatic aldehydes and the corresponding active 1,3-dicarbonyl compounds (namely, dimedone, 1,3-dimethylbarbituric acid, 1,3-indanedione, and 4-hydroxycoumarine). The reactions were conducted in glacial acetic acid at reflux for 5 h to give the desired products in good yields (62-83 %). The chemical constitutions of all new products were confirmed spectroscopically.
Collapse
Affiliation(s)
| | | | | | - Holger Butenschön
- Institut für Organische ChemieLeibniz Universität HannoverSchneiderberg 1B30167HannoverGermany
| | | |
Collapse
|
2
|
Elgemeie GH, Azzam RA, Zaghary WA, Khedr MA, Elsherif GE. Medicinal Chemistry of Pyrazolopyrimidine Scaffolds Substituted with Different Heterocyclic Nuclei. Curr Pharm Des 2022; 28:3374-3403. [PMID: 36330628 DOI: 10.2174/1381612829666221102162000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 08/30/2022] [Accepted: 10/13/2022] [Indexed: 11/06/2022]
Abstract
BACKGROUND Medicinal chemistry of pyrazolopyrimidine scaffolds substituted with different heterocyclic nuclei has attracted great attention due to their wide range of biological activities that have been reported. Pyrazolopyrimidine scaffold is an important privileged heterocycle nucleus in drug discovery. METHODS All pharmacological activities of pyrazolopyrimidine scaffold have been mentioned, such as anticancer, anti-inflammatory, antihypertensive, antitubercular, antiviral, antibacterial, antifungal, antidiabetic, and anti-obesity agents. In addition, it was used in both osteoporosis and neurological disorders. The difference in potency and bioavailability of pyrazolopyrimidine derivatives refers to the substituent groups that can increase the activity against specific targets and enhance their selectivity. RESULTS This review provides an overview of different synthetic pathways, structure activity relationships, and preclinical studies of pyrazolopyrimidine scaffolds substituted with a variety of heterocyclic nuclei, as well as it provides a discussion on the significant biological findings of these important scaffolds. In addition, it provides some insights on the different macromolecular targets that pyrazolopyrimidine scaffold can effectively work on, such as; cyclin dependent kinases; CDK2, CDK7, and CDK9, checkpoint kinases; CHK1 and CHK2 and their correlation with the anticancer activity, PI3Kα, transient receptor potential canonical 6, B-Raf kinase, Interleukin- 1 receptor-associated kinase 4, B-cell lymphoma 6, TRKA-C kinase, potent kDa ribosomal protein S6 kinase, colon cancer cell line (CaCo-2), domain receptor kinase (KDR), HepG-2 carcinoma cell, FLT3. The antibacterial activity against B. subtilis and E. coli and antifungal activity against C. albicans, C. tropicalis, A. niger, and A. clavatus are discussed. CONCLUSION This review provides an overview of the different pharmacological activities of the pyrazolopyrimidine scaffold and its correlation with chemical structure. Some exciting new developments in pyrazolopyrimidine scaffolds are also presented in this review.
Collapse
Affiliation(s)
- Galal H Elgemeie
- Department of Chemistry, Faculty of Science, Helwan University, Cairo 11795, Egypt
| | - Rasha A Azzam
- Department of Chemistry, Faculty of Science, Helwan University, Cairo 11795, Egypt
| | - Wafaa A Zaghary
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Helwan University, Cairo 11795, Egypt
| | - Mohammed A Khedr
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Helwan University, Cairo 11795, Egypt.,Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Kuwait University, Kuwait
| | - Gihad E Elsherif
- Department of Medicinal Chemistry, Egyptian Ministry of Health and Population, Cairo, Egypt
| |
Collapse
|
3
|
Saleh EAM, Kotian SY, Dawsari AMAL, Hassan I, Husain K, Abishad PC, Byrappa K, Sharabi RSSA, Rai KML. Synthesis, Antifungal, and Antioxidant Evaluation of New Class of Thiazoloquinazoline Linked by Carbonyl with Nitrile, Phenylacrylonitrile, Pyrazole, Pyrazolo[1,5-a]pyrimidine and Triazolo[1,5-a]pyrimidine as Five and Six-Membered Heterocycles Derivatives. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2022. [DOI: 10.1134/s1068162022060206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
4
|
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.
Collapse
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
| |
Collapse
|
5
|
Design, synthesis, structural optimization, SAR, in silico prediction of physicochemical properties and pharmacological evaluation of novel & potent thiazolo[4,5-d]pyrimidine corticotropin releasing factor (CRF) receptor antagonists. Eur J Pharm Sci 2021; 169:106084. [PMID: 34856350 DOI: 10.1016/j.ejps.2021.106084] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 11/12/2021] [Accepted: 11/26/2021] [Indexed: 11/21/2022]
Abstract
Corticotropin-releasing factor (CRF) is a 41-amino-acid neuropeptide secreted from the hypothalamus and is the main regulator of the hypothalamus-pituitary-adrenocortical (HPA) axis. CRF is the master hormone which modulates physiological and behavioral responses to stress. Many disorders including anxiety, depression, addictive disorders and others are related to over activation of the CRF system. This suggests that new molecules which can interfere with CRF binding to its receptors may be potential candidates for neuropsychiatric drugs to treat stress-related disorders. Previously, three series of pyrimidine and fused pyrimidine CRF1 receptor antagonists were synthesized by our group and specific binding assays, competitive binding studies and determination of the ability to antagonize the agonist-stimulated accumulation of cAMP (the second messenger for CRF receptors) were reported. In continuation of our efforts in this direction, in the current manuscript, we report the synthesis & biological evaluation of a new series of CRF1 receptor antagonists. Seven compounds showed promising binding affinity with the best two compounds (compounds 6 & 43) displaying a superior binding affinity to all of our previous compounds. Compounds 6 & 43 have only 4 times and 2 times less binding affinity than the standard CRF antagonist antalarmin, respectively. Thus, our two best lead compounds (compound 6 & 43) can be considered potent CRF receptor antagonists with binding affinity of 41.0 & 19.2 nM versus 9.7 nM for antalarmin.
Collapse
|
6
|
McGillan P, Berry NG, Nixon GL, Leung SC, Webborn PJH, Wenlock MC, Kavanagh S, Cassidy A, Clare RH, Cook DA, Johnston KL, Ford L, Ward SA, Taylor MJ, Hong WD, O’Neill PM. Development of Pyrazolopyrimidine Anti- Wolbachia Agents for the Treatment of Filariasis. ACS Med Chem Lett 2021; 12:1421-1426. [PMID: 34527179 PMCID: PMC8436242 DOI: 10.1021/acsmedchemlett.1c00216] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 08/16/2021] [Indexed: 11/30/2022] Open
Abstract
![]()
Anti-Wolbachia therapy has been identified as
a viable treatment for combating filarial diseases. Phenotypic screening
revealed a series of pyrazolopyrimidine hits with potent anti-Wolbachia activity. This paper focuses on the exploration
of the SAR for this chemotype, with improvement of metabolic stability
and solubility profiles using medicinal chemistry approaches. Organic
synthesis has enabled functionalization of the pyrazolopyrimidine
core at multiple positions, generating a library of compounds of which
many analogues possess nanomolar activity against Wolbachia
in vitro with improved DMPK parameters. A lead compound, 15f, was selected for in vivo pharmacokinetics
(PK) profiling in mice. The combination of potent anti-Wolbachia activity in two in vitro assessments plus the exceptional
oral PK profiles in mice puts this lead compound in a strong position
for in vivo proof-of-concept pharmacodynamics studies
and demonstrates the strong potential for further optimization and
development of this series for treatment of filariasis in the future.
Collapse
Affiliation(s)
- Paul McGillan
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, United Kingdom
| | - Neil G. Berry
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, United Kingdom
| | - Gemma L. Nixon
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, United Kingdom
| | - Suet C. Leung
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, United Kingdom
| | - Peter J. H. Webborn
- Drug Safety & Metabolism, IMED Biotech Unit, AstraZeneca U.K., Cambridge CB2 0AA, United Kingdom
| | - Mark C. Wenlock
- Drug Safety & Metabolism, IMED Biotech Unit, AstraZeneca U.K., Cambridge CB2 0AA, United Kingdom
| | - Stefan Kavanagh
- Oncology Safety Sciences, Clinical Pharmacology & Safety Sciences, R&D, AstraZeneca, Cambridge CB2 0AA, United Kingdom
| | - Andrew Cassidy
- Department of Tropical Disease Biology, Liverpool School of Tropical Medicine, Pembroke Place, Liverpool, L3 5QA, United Kingdom
| | - Rachel H. Clare
- Department of Tropical Disease Biology, Liverpool School of Tropical Medicine, Pembroke Place, Liverpool, L3 5QA, United Kingdom
| | - Darren A. Cook
- Department of Tropical Disease Biology, Liverpool School of Tropical Medicine, Pembroke Place, Liverpool, L3 5QA, United Kingdom
| | - Kelly L. Johnston
- Department of Tropical Disease Biology, Liverpool School of Tropical Medicine, Pembroke Place, Liverpool, L3 5QA, United Kingdom
- Institute of Systems, Molecular & Integrative Biology, School of Life Sciences, University of Liverpool, Crown Street, Liverpool L69 7ZB, United Kingdom
| | - Louise Ford
- Department of Tropical Disease Biology, Liverpool School of Tropical Medicine, Pembroke Place, Liverpool, L3 5QA, United Kingdom
| | - Stephen A. Ward
- Department of Tropical Disease Biology, Liverpool School of Tropical Medicine, Pembroke Place, Liverpool, L3 5QA, United Kingdom
| | - Mark J. Taylor
- Department of Tropical Disease Biology, Liverpool School of Tropical Medicine, Pembroke Place, Liverpool, L3 5QA, United Kingdom
| | - W. David Hong
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, United Kingdom
- Department of Tropical Disease Biology, Liverpool School of Tropical Medicine, Pembroke Place, Liverpool, L3 5QA, United Kingdom
| | - Paul M. O’Neill
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, United Kingdom
| |
Collapse
|
7
|
Design, characterization and quantum chemical computations of a novel series of pyrazoles derivatives with potential anti-proinflammatory response. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2020.05.042] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
|
8
|
Sicak Y, Oruç‐Emre EE, Öztürk M, Karaküçük‐İyidoğan A, Nadeem S. Synthesis, characterization, and antioxidant and anticholinesterase activities of pyrazolo derivatives. J Heterocycl Chem 2019. [DOI: 10.1002/jhet.3829] [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)
- Yusuf Sicak
- Department of Medicinal and Aromatic Plants, Köyceğiz Vocational SchoolMuğla Sıtkı Koçman University Muğla Turkey
| | - Emine E. Oruç‐Emre
- Department of Chemistry, Faculty of Science and ArtsGaziantep University Gaziantep Turkey
| | - Mehmet Öztürk
- Department of Chemistry, Faculty of ScienceMuğla Sıtkı Koçman University Muğla Turkey
| | | | - Said Nadeem
- Department of Food Processing, Köşk Vocational SchoolAydın Adnan Menderes University Aydın Turkey
| |
Collapse
|
9
|
Synthesis of pyrazolones and pyrazoles via Pd-catalyzed aerobic oxidative dehydrogenation. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.03.063] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
10
|
Kocyigit UM, Budak Y, Gürdere MB, Dürü N, Taslimi P, Gülçin İ, Ceylan M. Synthesis and investigation of anticancer, antibacterial activities and carbonic anhydrase, acetylcholinesterase inhibition profiles of novel (3aR,4S,7R,7aS)-2-[4-[1-acetyl-5-(aryl/heteroaryl)-4,5-dihydro-1H-pyrazol-3-yl]phenyl]-3a,4,7,7a-tetrahydro-1H-4,7-methanoisoindole-1,3(2H)-diones. MONATSHEFTE FUR CHEMIE 2019. [DOI: 10.1007/s00706-019-2350-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
|
11
|
Tighadouini S, Benabbes R, Tillard M, Eddike D, Haboubi K, Karrouchi K, Radi S. Synthesis, crystal structure, DFT studies and biological activity of (Z)-3-(3-bromophenyl)-1-(1,5-dimethyl-1H-pyrazol-3-yl)-3-hydroxyprop-2-en-1-one. Chem Cent J 2018; 12:122. [PMID: 30474759 PMCID: PMC6768133 DOI: 10.1186/s13065-018-0492-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Accepted: 11/15/2018] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Nowadays, is emerging a new generation of highly promising inhibitors bearing the β-ketoenol functionality. The present work relates to the first synthesis, the structure determination, the DFT studies and the use of a new biomolecule designed with a β-ketoenol group bounded to a pyrazolic moiety. RESULT A novel β-ketoenol-pyrazole has been synthesized, well characterized and its structure was confirmed by single crystal X-ray diffraction. The electron densities and the HOMO-LUMO gap have been calculated using the DFT method with BLYP, PW91, PWC functionals and 6-31G* basis set. An evaluation of the molecule stability is provided by a NBO analysis and the calculated Fukui and Parr functions have been used to locate the reactive electrophile and nucleophile centers in the molecule. The synthesized compound, screened for its in vitro antifungal behavior against the Fusarium oxysporum f.sp. albedinis FAO fungal strains, shows a moderate activity with an inhibition percentage of 46%. The product was also tested against three bacterial strains (Escherichia coli, Bacillus subtilis and Micrococcus luteus), but no significant effect was observed against these organisms. CONCLUSIONS Density functional calculations are used to evaluate the HOMO-LUMO energy gap, the molecular electrostatic potential and to provide a natural bond orbital analysis. The measured antimicrobial activities encourage us to continue searching for other structures, likely to be good antifungal candidates.
Collapse
Affiliation(s)
- Said Tighadouini
- Laboratoire de Chimie Appliquée et Environnement (LCAE), Faculté des Sciences, Université Mohamed I, 60000, Oujda, Morocco
| | - Redouane Benabbes
- Département de Biologie, Faculté des Sciences, Université Mohamed I, 60000, Oujda, Morocco
| | - Monique Tillard
- ICGM, CNRS, Université de Montpellier, ENSCM, Montpellier, France.
| | - Driss Eddike
- Laboratoire de Chimie du Solide Minéral et Analytique, Faculté des Sciences, Université Mohamed I, 60000, Oujda, Morocco
| | - Khadija Haboubi
- ENSA-AL Hociema, Université Mohamed I, 60000, Oujda, Morocco
| | - Khalid Karrouchi
- Laboratoire de Chimie Thérapeutique, Faculté de médecine et de Pharmacie, Université Mohamed V, Rabat, Morocco.
| | - Smaail Radi
- Laboratoire de Chimie Appliquée et Environnement (LCAE), Faculté des Sciences, Université Mohamed I, 60000, Oujda, Morocco
| |
Collapse
|
12
|
Kelada M, Walsh JMD, Devine RW, McArdle P, Stephens JC. Synthesis of pyrazolopyrimidinones using a "one-pot" approach under microwave irradiation. Beilstein J Org Chem 2018; 14:1222-1228. [PMID: 29977390 PMCID: PMC6009099 DOI: 10.3762/bjoc.14.104] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Accepted: 05/04/2018] [Indexed: 12/19/2022] Open
Abstract
A simple one-pot method for the microwave-assisted synthesis of substituted pyrazolo[1,5-a]pyrimidinones, a core scaffold in many bioactive and pharmaceutically relevant compounds, has been established. A variety of substituents was tolerated at the 2 and 5 positions, including functionalized aryls, heterocycles, and alkyl groups.
Collapse
Affiliation(s)
- Mark Kelada
- Department of Chemistry, Maynooth University, Maynooth, Co. Kildare, Ireland
| | - John M D Walsh
- Department of Chemistry, Maynooth University, Maynooth, Co. Kildare, Ireland
| | - Robert W Devine
- Department of Chemistry, Maynooth University, Maynooth, Co. Kildare, Ireland
| | - Patrick McArdle
- Department of Chemistry, National University of Ireland Galway, Co. Galway, Ireland
| | - John C Stephens
- Department of Chemistry, Maynooth University, Maynooth, Co. Kildare, Ireland
| |
Collapse
|
13
|
Jismy B, Guillaumet G, Allouchi H, Akssira M, Abarbri M. Concise and Efficient Access to 5,7-Disubstituted Pyrazolo[1,5-a]pyrimidines by Pd-Catalyzed Sequential Arylation, Alkynylation and SNArReaction. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701024] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Badr Jismy
- Département de Chimie; Université François Rabelais; Laboratoire d'Infectiologie et Santé Publique (UMR 1282); équipe Recherche et Innovation en Chimie Médicinale; Parc de Grandmont 37200 Tours France
- Laboratoire de Chimie Physique et de Chimie Bioorganique; Département de Chimie Université Hassan II de Casablanca; URAC 22; 28800 Mohammedia Maroc
| | - Gérald Guillaumet
- Institut de Chimie Organique et Analytique (ICOA); Université d'Orléans; UMR CNRS 7311; BP 6759, rue de Chartres 45067 Orléans Cedex2 France
| | - Hassan Allouchi
- Département de Chimie; Université François Rabelais; Laboratoire d'Infectiologie et Santé Publique (UMR 1282); équipe Recherche et Innovation en Chimie Médicinale; Parc de Grandmont 37200 Tours France
| | - Mohamed Akssira
- Laboratoire de Chimie Physique et de Chimie Bioorganique; Département de Chimie Université Hassan II de Casablanca; URAC 22; 28800 Mohammedia Maroc
| | - Mohamed Abarbri
- Département de Chimie; Université François Rabelais; Laboratoire d'Infectiologie et Santé Publique (UMR 1282); équipe Recherche et Innovation en Chimie Médicinale; Parc de Grandmont 37200 Tours France
| |
Collapse
|
14
|
Ding ZC, An XM, Zeng JH, Tang ZN, Zhan ZP. Copper(I)-Catalyzed Synthesis of 4,5-Dihydropyrazolo[1,5- a
]pyrimidines via
Cascade Transformation of N
-Propargylic Sulfonylhydrazones with Sulfonyl Azides. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700635] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Zong-Cang Ding
- Department of Chemistry, College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005 People's Republic of China
| | - Xiao-Ming An
- Department of Chemistry, College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005 People's Republic of China
| | - Jia-Hao Zeng
- Department of Chemistry, College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005 People's Republic of China
| | - Zhao-Ning Tang
- Department of Chemistry, College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005 People's Republic of China
| | - Zhuang-Ping Zhan
- Department of Chemistry, College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005 People's Republic of China
| |
Collapse
|
15
|
Teleb M, Kuppast B, Spyridaki K, Liapakis G, Fahmy H. Synthesis of 2-imino and 2-hydrazono thiazolo[4,5- d ]pyrimidines as corticotropin releasing factor (CRF) antagonists. Eur J Med Chem 2017; 138:900-908. [DOI: 10.1016/j.ejmech.2017.07.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 06/27/2017] [Accepted: 07/11/2017] [Indexed: 12/18/2022]
|
16
|
Kheder NA, Farghaly TAR. Bis-Hydrazonoyl chloride as precursors for synthesis of novel polysubstituted bis-azoles. ARAB J CHEM 2017. [DOI: 10.1016/j.arabjc.2013.11.040] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
|
17
|
Synthesis, biological screening, POM, and 3D-QSAR analyses of some novel pyrazolic compounds. Med Chem Res 2017. [DOI: 10.1007/s00044-017-1888-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
18
|
Dhanapal V, Ramalingam J, Raman AN. Synthesis, Characterization and Antimicrobial Activity of 1,2-dihydroquinoxaline-3-yl-3-Substitutedphenyl-1 H-pyrazole-4-Carbaldehyde. J Heterocycl Chem 2017. [DOI: 10.1002/jhet.2663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Visagaperumal Dhanapal
- Department of Pharmaceutical Chemistry; T John College of Pharmacy; Gottigere Bangalore-56083 India
- Department of Pharmacy; Acharya Nagarjuna University, Guntur; Andhrapradesh 522510 India
| | - Jayakumar Ramalingam
- Technical Service; Astra Zeneca India Pharma limited; Bellary road, Yalahanka Bangalore Karnataka 560064 India
| | | |
Collapse
|
19
|
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.
Collapse
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
| |
Collapse
|
20
|
Golubev P, Karpova EA, Pankova AS, Sorokina M, Kuznetsov MA. Regioselective Synthesis of 7-(Trimethylsilylethynyl)pyrazolo[1,5-a]pyrimidines via Reaction of Pyrazolamines with Enynones. J Org Chem 2016; 81:11268-11275. [PMID: 27749057 DOI: 10.1021/acs.joc.6b02217] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Condensation of enynones readily available from cheap starting material with pyrazolamines provides easy access to fluorescent 7-(trimethylsilylethynyl)pyrazolo[1,5-a]pyrimidines. The reaction is straightforward, does not require the use of any additional reagents or catalysts, and can be performed without inert atmosphere. Various substituents and functional groups in both enynone and pyrazolamine are tolerated. The presented method features full regioselectivity, high isolated yields, and simplicity of both setup and product purification. Fluorescent properties of the obtained pyrazolopyrimidines were studied.
Collapse
Affiliation(s)
- Pavel Golubev
- Institute of Chemistry, Saint Petersburg State University , Universitetsky pr. 26, 198504 Saint Petersburg, Russia
| | - Ekaterina A Karpova
- Institute of Chemistry, Saint Petersburg State University , Universitetsky pr. 26, 198504 Saint Petersburg, Russia
| | - Alena S Pankova
- Institute of Chemistry, Saint Petersburg State University , Universitetsky pr. 26, 198504 Saint Petersburg, Russia
| | - Mariia Sorokina
- Institute of Chemistry, Saint Petersburg State University , Universitetsky pr. 26, 198504 Saint Petersburg, Russia
| | - Mikhail A Kuznetsov
- Institute of Chemistry, Saint Petersburg State University , Universitetsky pr. 26, 198504 Saint Petersburg, Russia
| |
Collapse
|
21
|
Yahyavi H, Hosseinzadeh F, Karimi N, Moghimi S, Mahdavi M, Nadri H, Moradi A, Shafiee A, Foroumadi A. Synthesis and biological evaluation of 1,3,4,5-tetrasubstituted pyrazole derivatives. ACTA ACUST UNITED AC 2016. [DOI: 10.1515/znb-2016-0092] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
We report a solvent-free synthesis of novel 1,3,4,5-tetrasubstituted pyrazoles and investigate their inhibitory activity against soybean 15-lipoxygenase. It was revealed that all synthesized compounds exhibited good activity, and among them, 3-(furan-2-yl)-1,4,5-triphenyl-1H-pyrazole (5j) showed 10 times stronger inhibitory activity in comparison to the reference drug quercetin.
Collapse
Affiliation(s)
- Hoda Yahyavi
- Department of Chemistry, Alzahra University, Tehran, Iran (Islamic Republic of)
- Department of Medicinal Chemistry, Faculty of Pharmacy and Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran, Iran (Islamic Republic of)
| | - Fatemeh Hosseinzadeh
- Department of Medicinal Chemistry, Faculty of Pharmacy and Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran, Iran (Islamic Republic of)
| | - Nastaran Karimi
- Department of Medicinal Chemistry, Faculty of Pharmacy and Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran, Iran (Islamic Republic of)
| | - Setareh Moghimi
- Department of Medicinal Chemistry, Faculty of Pharmacy and Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran, Iran (Islamic Republic of)
| | - Mohammad Mahdavi
- Drug Design and Development Research Center, Tehran University of Medical Sciences, Tehran, Iran (Islamic Republic of)
| | - Hamid Nadri
- Department of Medicinal Chemistry, Faculty of Pharmacy, Shahid Sadoughi University of Medical Sciences, Yazd, Iran (Islamic Republic of)
| | - Alireza Moradi
- Department of Medicinal Chemistry, Faculty of Pharmacy, Shahid Sadoughi University of Medical Sciences, Yazd, Iran (Islamic Republic of)
| | - Abbas Shafiee
- Department of Medicinal Chemistry, Faculty of Pharmacy and Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran, Iran (Islamic Republic of)
| | - Alireza Foroumadi
- Department of Medicinal Chemistry, Faculty of Pharmacy and Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran, Iran (Islamic Republic of)
- Drug Design and Development Research Center, Tehran University of Medical Sciences, Tehran, Iran (Islamic Republic of)
| |
Collapse
|
22
|
X-ray Single Crystal Structure, DFT Calculations and Biological Activity of 2-(3-Methyl-5-(pyridin-2'-yl)-1H-pyrazol-1-yl) Ethanol. Molecules 2016; 21:molecules21081020. [PMID: 27527141 PMCID: PMC6273099 DOI: 10.3390/molecules21081020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 07/31/2016] [Accepted: 08/02/2016] [Indexed: 11/17/2022] Open
Abstract
A pyridylpyrazole bearing a hydroxyethyl substituent group has been synthesized by condensation of (Z)-4-hydroxy-4-(pyridin-2-yl)but-3-en-2-one with 2-hydroxyethylhydrazine. The compound was well characterized and its structure confirmed by single crystal X-ray diffraction. Density functional calculations have been performed using DFT method with 6-31G* basis set. The HOMO-LUMO energy gap, binding energies and electron deformation densities are calculated at the DFT (BLYP, PW91, PWC) level. The electrophilic f(-) and nucleophilic f(+) Fukui functions and also the electrophilic and nucleophilic Parr functions are well adapted to find the electrophile and nucleophile centers in the molecule. The title compound has been tested for its DPPH radical scavenging activity which is involved in aging processes, anti-inflammatory, anticancer and wound healing activity. Compound is also found with a significant antioxidant activity, probably due to the ability to donate a hydrogen atom to the DPPH radical.
Collapse
|
23
|
Kumar R, Kumar M, Prakash O. A Simple and Efficient Method for the Synthesis of Novel Pyrazolyl Isoxazoline Derivatives Using Hypervalent Iodine (III) Reagent. HETEROATOM CHEMISTRY 2016. [DOI: 10.1002/hc.21320] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Rajesh Kumar
- Post Graduate Department of Chemistry; M. L. N. College; Yamuna Nagar 135001 Haryana India
| | - Manoj Kumar
- Department of Chemistry; Kurukshetra University; Kurukshetra 136 119 Haryana India
| | - Om Prakash
- Department of Chemistry; Kurukshetra University; Kurukshetra 136 119 Haryana India
| |
Collapse
|
24
|
Levi L, Müller TJJ. Multicomponent Syntheses of Fluorophores Initiated by Metal Catalysis. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600409] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Lucilla Levi
- Institut für Organische Chemie und Makromolekulare Chemie; Heinrich-Heine-Universität Düsseldorf; Universitätsstrasse 1 40225 Düsseldorf Germany
| | - Thomas J. J. Müller
- Institut für Organische Chemie und Makromolekulare Chemie; Heinrich-Heine-Universität Düsseldorf; Universitätsstrasse 1 40225 Düsseldorf Germany
| |
Collapse
|
25
|
Desai NC, Bhatt MJ. Optimized Synthesis of Novel Pyrazole Based Thiazole Derivatives and their Antimicrobial Evaluation. ACTA ACUST UNITED AC 2016. [DOI: 10.18052/www.scipress.com/ilcpa.66.109] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
A series of nitro pyrazole based thiazole derivatives compounds were synthesized by using solid base catalyst. The process was further optimized by setting up the solvent and catalyst ratio. The structures of these compounds were elucidated by spectral (IR, 1H NMR, 13C NMR, mass spectra) analysis. Synthesized compounds were screened for their in vitro antibacterial activity against the representative panel of Gram-positive (Staphylococcus aureus, Streptococcus pyogenes) and Gram-negative (Escherichia coli, Pseudomonas aeruginosa) bacteria. These compounds were tested for their inhibitory action against strains of fungi (Candida albicans, Aspergillusniger, Aspergillusclavatus).
Collapse
|
26
|
Abstract
Multicomponent reactions are a valuable tool for the synthesis of functional π-electron systems. Two different approaches can be taken into account for accessing the target structures. In the more conventional scaffold approach an already existing chromophore is coupled with other components to give a complex functional π-system. Here, electronically monotonous components can also be introduced, which may exert synergistic electronic effects within the novel compound. The more demanding chromophore concept generates a complete π-electron system and a scaffold concurrently. The latter approach is particularly stimulating for methodologists since π-systems might be accessible from simple starting materials. This review encompasses the advances in the preparation of functional π-electron systems via multicomponent processes during the past few years, based both on the scaffold and chromophore concepts. Besides the synthetic strategies the most important properties, i.e. redox potentials, absorption and emission maxima or fluorescence quantum yields, of the synthesized molecules are highlighted.
Collapse
Affiliation(s)
- Lucilla Levi
- Institut für Organische Chemie und Makromolekulare Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstr. 1, D-40225 Düsseldorf, Germany.
| | | |
Collapse
|
27
|
Bassoude I, Tber Z, Essassi EM, Guillaumet G, Berteina-Raboin S. A one-pot process for the microwave-assisted synthesis of 7-substituted pyrazolo[1,5-a]pyrimidine. RSC Adv 2016. [DOI: 10.1039/c5ra23417d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An efficient synthesis of 7-substituted pyrazolo[1,5-a]pyrimidines using a one-pot, two-step process via Pd-catalyzed direct CH-arylation followed by a saponification–decarboxylation reaction is reported.
Collapse
Affiliation(s)
- Ibtissam Bassoude
- Institut de Chimie Organique et Analytique
- Université d'Orléans
- UMR CNRS 7311
- 45067 Orléans Cédex
- France
| | - Zahira Tber
- Institut de Chimie Organique et Analytique
- Université d'Orléans
- UMR CNRS 7311
- 45067 Orléans Cédex
- France
| | - El Mokhtar Essassi
- Laboratoire de Chimie Organique Hétérocyclique URAC 21
- Université Mohammed V-Agdal
- Faculté des Sciences
- 10100 Rabat
- Morocco
| | - Gérald Guillaumet
- Institut de Chimie Organique et Analytique
- Université d'Orléans
- UMR CNRS 7311
- 45067 Orléans Cédex
- France
| | - Sabine Berteina-Raboin
- Institut de Chimie Organique et Analytique
- Université d'Orléans
- UMR CNRS 7311
- 45067 Orléans Cédex
- France
| |
Collapse
|
28
|
Katla R, Chowrasia R, Manjari PS, da Silva CDG, dos Santos BF, Domingues NLC. [Ce(l-Pro)2]2 (Oxa) as a heterogeneous recyclable catalyst: synthesis of pyrazoles under mild reaction conditions. NEW J CHEM 2016. [DOI: 10.1039/c6nj01723a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A highly efficient method for the synthesis of pyrazoles mediated by [Ce(l-Pro)2]2 (Oxa) as a heterogeneous catalyst.
Collapse
Affiliation(s)
- Ramesh Katla
- Organic Catalysis and Biocatalysis Laboratory OCBL/ FACET
- Federal University of Grande Dourados—UFGD
- Dourados
- Brazil
| | | | | | - Caren D. G. da Silva
- Organic Catalysis and Biocatalysis Laboratory OCBL/ FACET
- Federal University of Grande Dourados—UFGD
- Dourados
- Brazil
| | - Beatriz F. dos Santos
- Organic Catalysis and Biocatalysis Laboratory OCBL/ FACET
- Federal University of Grande Dourados—UFGD
- Dourados
- Brazil
| | - Nelson L. C. Domingues
- Organic Catalysis and Biocatalysis Laboratory OCBL/ FACET
- Federal University of Grande Dourados—UFGD
- Dourados
- Brazil
| |
Collapse
|
29
|
Ghelani SM, Naliapara YT. Design, Multicomponent Synthesis and Characterization of Diversely Substituted Pyrazolo[1,5-a] Pyrimidine Derivatives. J Heterocycl Chem 2015. [DOI: 10.1002/jhet.2496] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Satish M. Ghelani
- Department of Chemistry; Saurashtra University; Rajkot Gujarat India
| | | |
Collapse
|
30
|
Novel 5-functionalized-pyrazoles: Synthesis, characterization and pharmacological screening. Bioorg Med Chem Lett 2015; 25:3671-5. [DOI: 10.1016/j.bmcl.2015.06.050] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2014] [Revised: 05/29/2015] [Accepted: 06/12/2015] [Indexed: 11/23/2022]
|
31
|
Raslan MA, Omran OA. Synthesis and Reactivity of Enaminones: Synthesis of Some 1,3,4-Thiadiazole Linked to Pyrazole, Pyridine, Benzimidazolopyrimidine, Pyrazolopyrimidine, Pyrazolotriazine and Triazolotriazine Derivatives. J Heterocycl Chem 2015. [DOI: 10.1002/jhet.2359] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Mohamed A. Raslan
- Chemistry Department, Faculty of Science; Aswan University; 81528 Aswan Egypt
| | - Omran A. Omran
- Chemistry Department, Faculty of Science; Sohag University; 82524 Sohag Egypt
- College of Science in Zulfi; Majmaah University; 1712, 11932 Al Majmaah Saudi Arabia
| |
Collapse
|
32
|
Stehouwer JS, Birnbaum MS, Voll RJ, Owens MJ, Plott SJ, Bourke CH, Wassef MA, Kilts CD, Goodman MM. Synthesis, F-18 radiolabeling, and microPET evaluation of 3-(2,4-dichlorophenyl)-N-alkyl-N-fluoroalkyl-2,5-dimethylpyrazolo[1,5-a]pyrimidin-7-amines as ligands of the corticotropin-releasing factor type-1 (CRF1) receptor. Bioorg Med Chem 2015; 23:4286-4302. [PMID: 26145817 DOI: 10.1016/j.bmc.2015.06.036] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2015] [Revised: 06/04/2015] [Accepted: 06/12/2015] [Indexed: 12/28/2022]
Abstract
A series of 3-(2,4-dichlorophenyl)-N-alkyl-N-fluoroalkyl-2,5-dimethylpyrazolo[1,5-a]pyrimidin-7-amines were synthesized and evaluated as potential positron emission tomography (PET) tracers for the corticotropin-releasing factor type-1 (CRF1) receptor. Compounds 27, 28, 29, and 30 all displayed high binding affinity (⩽1.2 nM) to the CRF1 receptor when assessed by in vitro competition binding assays at 23 °C, whereas a decrease in affinity (⩾10-fold) was observed with compound 26. The logP7.4 values of [(18)F]26-[(18)F]29 were in the range of ∼2.2-2.8 and microPET evaluation of [(18)F]26-[(18)F]29 in an anesthetized male cynomolgus monkey demonstrated brain penetrance, but specific binding was not sufficient enough to differentiate regions of high CRF1 receptor density from regions of low CRF1 receptor density. Radioactivity uptake in the skull, and sphenoid bone and/or sphenoid sinus during studies with [(18)F]28, [(18)F]28-d8, and [(18)F]29 was attributed to a combination of [(18)F]fluoride generated by metabolic defluorination of the radiotracer and binding of intact radiotracer to CRF1 receptors expressed on mast cells in the bone marrow. Uptake of [(18)F]26 and [(18)F]27 in the skull and sphenoid region was rapid but then steadily washed out which suggests that this behavior was the result of binding to CRF1 receptors expressed on mast cells in the bone marrow with no contribution from [(18)F]fluoride.
Collapse
Affiliation(s)
- Jeffrey S Stehouwer
- Center for Systems Imaging, Department of Radiology and Imaging Sciences, Emory University, WWHC 209, 1841 Clifton Rd NE, Atlanta, GA 30329, USA.
| | - Matthew S Birnbaum
- Center for Systems Imaging, Department of Radiology and Imaging Sciences, Emory University, WWHC 209, 1841 Clifton Rd NE, Atlanta, GA 30329, USA
| | - Ronald J Voll
- Center for Systems Imaging, Department of Radiology and Imaging Sciences, Emory University, WWHC 209, 1841 Clifton Rd NE, Atlanta, GA 30329, USA
| | - Michael J Owens
- Department of Psychiatry and Behavioral Sciences, Emory University, Atlanta, GA, USA
| | - Susan J Plott
- Department of Psychiatry and Behavioral Sciences, Emory University, Atlanta, GA, USA
| | - Chase H Bourke
- Department of Psychiatry and Behavioral Sciences, Emory University, Atlanta, GA, USA
| | - Michael A Wassef
- Center for Systems Imaging, Department of Radiology and Imaging Sciences, Emory University, WWHC 209, 1841 Clifton Rd NE, Atlanta, GA 30329, USA
| | - Clinton D Kilts
- Department of Psychiatry and Behavioral Sciences, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Mark M Goodman
- Center for Systems Imaging, Department of Radiology and Imaging Sciences, Emory University, WWHC 209, 1841 Clifton Rd NE, Atlanta, GA 30329, USA; Department of Psychiatry and Behavioral Sciences, Emory University, Atlanta, GA, USA
| |
Collapse
|
33
|
Durgamma S, Reddy PR, Padmavathi V, Padmaja A. Synthesis and Antioxidant Activity of Amido-Linked Benzoxazolyl/Benzothiazolyl/Benzimidazolyl-Pyrazoles and Isoxazoles. J Heterocycl Chem 2015. [DOI: 10.1002/jhet.2347] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Suram Durgamma
- Department of Chemistry; Sri Venkateswara University; Tirupati 517 502 Andhra Pradesh India
| | | | | | - Adivireddy Padmaja
- Department of Chemistry; Sri Venkateswara University; Tirupati 517 502 Andhra Pradesh India
| |
Collapse
|
34
|
Raslan MA, Sayed SM, Khalil MA. Synthesis of Some Pyrazole, Thiazole, Pyridine, and 1,3,4-Thiadiazole Derivatives Incorporating 2-Thiazolyl Moiety. J Heterocycl Chem 2015. [DOI: 10.1002/jhet.2335] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Mohamed A. Raslan
- Chemistry Department, Faculty of Science; Aswan University; 81528 Aswan Egypt
| | - Samia M. Sayed
- Chemistry Department, Faculty of Science; Aswan University; 81528 Aswan Egypt
| | - Mohamed A. Khalil
- Chemistry Department, Faculty of Science; Aswan University; 81528 Aswan Egypt
| |
Collapse
|
35
|
Kaswan P, Pericherla K, Purohit D, Kumar A. Synthesis of 5,7-diarylpyrazolo[1,5- a ]pyrimidines via KOH mediated tandem reaction of 1 H -pyrazol-3-amines and chalcones. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2014.11.121] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
36
|
Mukherjee S, Salini PS, Srinivasan A, Peruncheralathan S. AIEE phenomenon: tetraaryl vs. triaryl pyrazoles. Chem Commun (Camb) 2015; 51:17148-51. [DOI: 10.1039/c5cc05973a] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A library of tetraaryl pyrazole derivatives were synthesized and the AIEE phenomenon was explored.
Collapse
Affiliation(s)
- Sayani Mukherjee
- School of Chemical Sciences
- National Institute of Science Education and Research (NISER)
- Institute of Physics Campus
- Bhubaneswar – 751005
- India
| | - P. S. Salini
- School of Chemical Sciences
- National Institute of Science Education and Research (NISER)
- Institute of Physics Campus
- Bhubaneswar – 751005
- India
| | - A. Srinivasan
- School of Chemical Sciences
- National Institute of Science Education and Research (NISER)
- Institute of Physics Campus
- Bhubaneswar – 751005
- India
| | - S. Peruncheralathan
- School of Chemical Sciences
- National Institute of Science Education and Research (NISER)
- Institute of Physics Campus
- Bhubaneswar – 751005
- India
| |
Collapse
|
37
|
Synthesis and biological evaluation of newer analogues of 2,5-disubstituted 1,3,4-oxadiazole containing pyrazole moiety as antimicrobial agents. ARAB J CHEM 2014. [DOI: 10.1016/j.arabjc.2013.12.020] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
|
38
|
Kumar A, Paliwal D, Saini D, Thakur A, Aggarwal S, Kaushik D. A comprehensive review on synthetic approach for antimalarial agents. Eur J Med Chem 2014; 85:147-78. [DOI: 10.1016/j.ejmech.2014.07.084] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2014] [Revised: 07/23/2014] [Accepted: 07/23/2014] [Indexed: 01/11/2023]
|
39
|
Ningaiah S, Doddaramappa SD, Chandra, Madegowda M, Keshavamurthy S, Bhadraiah UK. One-Pot Tandem Synthesis of Tetrasubstituted Pyrazoles via 1,3-Dipolar Cycloaddition Between Aryl Hydrazones and Ethyl But-2-ynoate. SYNTHETIC COMMUN 2014. [DOI: 10.1080/00397911.2014.891744] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
| | | | - Chandra
- c Department of Studies in Physics , Manasagangotri, University of Mysore , Mysore , India
| | - Mahendra Madegowda
- c Department of Studies in Physics , Manasagangotri, University of Mysore , Mysore , India
| | | | - Umesha K. Bhadraiah
- a Department of Chemistry, Yuvaraja's College , University of Mysore , Mysore , India
| |
Collapse
|
40
|
Hote BS, Lokhande PD. Novel and Efficient Synthesis of 4-Indazolyl-1,3,4-trisubstituted Pyrazole Derivatives. SYNTHETIC COMMUN 2014. [DOI: 10.1080/00397911.2013.862724] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Baliram S. Hote
- a Organic Chemistry Laboratory, Department of Chemistry , University of Pune , India
| | - Pradeep D. Lokhande
- a Organic Chemistry Laboratory, Department of Chemistry , University of Pune , India
| |
Collapse
|
41
|
Kumar Maji P, Ul Islam R, Kumar Bera S. RECENT PROGRESS IN METAL ASSISTED MULTICOMPONENT SYNTHESES OF HETEROCYCLES. HETEROCYCLES 2014. [DOI: 10.3987/rev-13-781] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
42
|
Zhang X, Song Y, Gao L, Guo X, Fan X. Highly facile and regio-selective synthesis of pyrazolo[1,5-a]pyrimidines via reactions of 1,2-allenic ketones with aminopyrazoles. Org Biomol Chem 2014; 12:2099-107. [DOI: 10.1039/c3ob42445f] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
|
43
|
Sreedevi NK, Mathews A, Devaky KS, Anabha ER. A Facile Method for the Synthesis of Aroyl Pyrazoles from Functionalized Ketene Dithioacetals. J Heterocycl Chem 2013. [DOI: 10.1002/jhet.1954] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- N. K. Sreedevi
- School of Chemical Sciences; Mahatma Gandhi University; Kottayam Kerala 686560 India
| | - A. Mathews
- School of Chemical Sciences; Mahatma Gandhi University; Kottayam Kerala 686560 India
| | - K. S. Devaky
- School of Chemical Sciences; Mahatma Gandhi University; Kottayam Kerala 686560 India
| | - E. R. Anabha
- Department of Chemistry; Sree Narayana College; Alathur 678 622 Kerala India
| |
Collapse
|
44
|
Yang J, Zhang Z, He Q. Facile Synthesis of Diarylpyrazolo[1,5-a]pyrimidine from Isoflavones. J Heterocycl Chem 2013. [DOI: 10.1002/jhet.1633] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Junling Yang
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China, and School of Chemistry and Materials Science; Shaanxi Normal University; Xi'an 710062 People's Republic of China
| | - Zunting Zhang
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China, and School of Chemistry and Materials Science; Shaanxi Normal University; Xi'an 710062 People's Republic of China
| | - Qing He
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China, and School of Chemistry and Materials Science; Shaanxi Normal University; Xi'an 710062 People's Republic of China
| |
Collapse
|
45
|
Shi DQ, Yang F. Ionic Liquid as an Efficient Promoting Medium for Synthesis of Bis-Pyrazolo[3,4-b:4′,3′-e]Pyridines. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.200800113] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
46
|
Synthesis and biological evaluation of some novel N-arylpyrazole derivatives as cytotoxic agents. RESEARCH ON CHEMICAL INTERMEDIATES 2013. [DOI: 10.1007/s11164-013-1051-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
47
|
Tridentate bipyrazole compounds with a side-arm as a new class of antitumor agents. RESEARCH ON CHEMICAL INTERMEDIATES 2013. [DOI: 10.1007/s11164-012-0993-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
48
|
Ultrasonication-Induced Synthesis and Antimicrobial Evaluation of Some Multifluorinated Pyrazolone Derivatives. J CHEM-NY 2013. [DOI: 10.1155/2013/741953] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
A series of novel fluorine containing pyrazole-pyrazolone (4a–j) and chromone-pyrazolone (5a–i) was synthesized from multifluorinated pyrazolone by the Knoevenagel condensation reaction. All compounds were synthesized by conventional heating as well as ultrasound irradiation technique. It was found that ultrasonication method was more efficient than conventional heating method. The newly synthesized compounds were subjected forin vitroantimicrobial screening against four bacterial pathogens, namely,Staphylococcus aureus, Streptococcus pyogenes, Escherichia coli,andPseudomonas aeruginosaand three fungal pathogensCandida albicans, Aspergillus niger,andAspergillus clavatus, using broth microdilution (MIC) method (CLSI guidelines). Among them, some compounds exhibited promising antibacterial activity against the tested strains. All synthesized compounds were characterized by IR,1H-NMR, mass, and elemental analysis.
Collapse
|
49
|
Synthesis, antioxidant, and antitumor evaluation of certain new N-substituted-2-amino-1,3,4-thiadiazoles. Med Chem Res 2012. [DOI: 10.1007/s00044-012-0336-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
50
|
|