1
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Jaiswal AK, Kushawaha AK, Katiyar S, Ansari A, Bhatt H, Kant R, Sashidhara KV. Silver-Catalyzed Synthesis of 5-Amino-4-sulfonyl Pyrazoles from 1,2-Diaza-1,3-dienes. J Org Chem 2024; 89:16033-16037. [PMID: 39438304 DOI: 10.1021/acs.joc.4c01936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2024]
Abstract
A facile and dependable synthetic route for 5-amino-4-sulfonyl pyrazoles, which are substantially important in pharmaceuticals, is highly desirable. This work presents a novel cascade reaction for their efficient synthesis. The approach utilizes silver as a catalyst for C(sp2)-H sulfonylation of readily available starting materials 1,2-diaza-1,3-dienes with sulfinate salts, followed by intramolecular cascade cyclization annulation to afford the desired 5-amino-4-sulfonyl pyrazoles in good to excellent yields under mild conditions.
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Affiliation(s)
- Arvind Kumar Jaiswal
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, UP, India
| | - Ajay Kishor Kushawaha
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, UP, India
| | - Sarita Katiyar
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, UP, India
- Academy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh 201002, India
| | - Alisha Ansari
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, UP, India
- Academy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh 201002, India
| | - Hemlata Bhatt
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, UP, India
- Academy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh 201002, India
| | - Ruchir Kant
- Molecular and Structural Biology, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, India
| | - Koneni V Sashidhara
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, UP, India
- Academy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh 201002, India
- Sophisticated Analytical Instrument Facility & Research, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, UP, India
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2
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Elgohary MK, Elkotamy MS, Abdelrahman Alkabbani M, Abdel-Aziz HA. Fenamates and ibuprofen as foundational components in the synthesis of innovative, targeted COX-2 anti-inflammatory drugs, undergoing thorough biopharmacological assessments and in-silico computational studies. Bioorg Chem 2024; 147:107393. [PMID: 38691908 DOI: 10.1016/j.bioorg.2024.107393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 04/13/2024] [Accepted: 04/23/2024] [Indexed: 05/03/2024]
Abstract
Cyclooxygenase-2 plays a vital role in inflammation by catalyzing arachidonic acid conversion toward prostaglandins, making it a prime therapeutic objective. Selective COX-2 inhibitors represent significant progress in anti-inflammatory therapy, offering improved efficacy and fewer side effects. This study describes the synthesis of novel anti-inflammatory compounds from established pharmaceutically marketed agents like fenamates III-V and ibuprofen VI. Through rigorous in vitro testing, compounds 7b-c, and 12a-b demonstrated substantial in vitro selective inhibition, with IC50 values of 0.07 to 0.09 μM, indicating potent pharmacological activity. In vivo assessment, particularly focusing on compound 7c, revealed significant anti-inflammatory effects. Markedly, it demonstrated the highest inhibition of paw thickness (58.62 %) at the 5-hr mark compared to the carrageenan group, indicating its potency in mitigating inflammation. Furthermore, it exhibited a rapid onset of action, with a 54.88 % inhibition observed at the 1-hr mark. Subsequent comprehensive evaluations encompassing analgesic efficacy, histological characteristics, and toxicological properties indicated that compound 7c did not induce gastric ulcers, in contrast to the ulcerogenic tendency associated with mefenamic acid. Moreover, compound 7c underwent additional investigations through in silico methodologies such as molecular modelling, field alignment, and density functional theory. These analyses underscored the therapeutic potential and safety profile of this novel compound, warranting further exploration and development in the realm of pharmaceutical research.
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Affiliation(s)
- Mohamed K Elgohary
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Egyptian-Russian University, Badr City Cairo 11829, Egypt.
| | - Mahmoud S Elkotamy
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Egyptian-Russian University, Badr City Cairo 11829, Egypt
| | - Mahmoud Abdelrahman Alkabbani
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Egyptian-Russian University, Badr City, Cairo 11829, Egypt
| | - Hatem A Abdel-Aziz
- Applied Organic Chemistry Department, National Research Center, Dokki, Cairo 12622, Egypt
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3
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Ahmed M, Mahajan S, Kour J, Sawant SD. Sulfonylpyrazole- and pyrazole-directed ortho-selective C-H functionalization/alkenylation and desulfenylative olefination of aryl(sulfonyl)pyrazoles. Org Biomol Chem 2023; 21:8301-8305. [PMID: 37794788 DOI: 10.1039/d3ob01262j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/06/2023]
Abstract
ortho-Selective C-H alkenylation of arenes was achieved using sulfonylpyrazoles and pyrazoles as directing groups, favored by a combination of a Pd(OAc)2 catalyst, Boc-Sar-OH and silver acetate. A wide variety of mono-alkenylated products of aryl-sulfonylpyrazoles and pyrazoles were synthesized with complete site-selectivity under mild reaction conditions. This transformation tolerated several electron-withdrawing and electron-donating groups on the aryl ring and the yields ranged from 52% to 70%, producing highly decorated/valuable alkenylated sulfonylpyrazole and pyrazole derivatives. Amazingly, switching of the oxidant, with the use of AgBF4 in place of AgOAc, offered cinnamic acid derivatives through de-sulfonylation followed by alkenylation at the same position with good yields in the case of aryl-sulfonylpyrazoles. These kinds of molecules have great biological importance and target predictions indicate that they may serve as potential antifungal and anti-tumor agents.
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Affiliation(s)
- Mukhtar Ahmed
- Natural Products and Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu-180001, UT of J&K, India.
- Academy of Scientific and Innovative Research, Ghaziabad-201002, UP, India
| | - Shivangani Mahajan
- Natural Products and Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu-180001, UT of J&K, India.
- Academy of Scientific and Innovative Research, Ghaziabad-201002, UP, India
| | - Jaspreet Kour
- Natural Products and Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu-180001, UT of J&K, India.
- Academy of Scientific and Innovative Research, Ghaziabad-201002, UP, India
| | - Sanghapal D Sawant
- Natural Products and Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu-180001, UT of J&K, India.
- Academy of Scientific and Innovative Research, Ghaziabad-201002, UP, India
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4
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Zou X, Zheng L, Zhuo X, Zhong Y, Wu Y, Yang B, He Q, Guo W. Copper-Promoted Aerobic Oxidative [3+2] Cycloaddition Reactions of N,N-Disubstituted Hydrazines with Alkynoates: Access to Substituted Pyrazoles. J Org Chem 2023; 88:2190-2206. [PMID: 36724037 DOI: 10.1021/acs.joc.2c02610] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
A copper-promoted aerobic oxidative [3+2] cycloaddition reaction for the synthesis of various substituted pyrazoles from N,N-disubstituted hydrazines with alkynoates in the presence of bases is developed. This work involves a direct C(sp3)-H functionalization and the formation of new C-C/C-N bonds. In this strategy, inexpensive and easily available Cu2O serves as the promoter and air acts as the green oxidant. The reaction exhibits the advantages of high atom and step economy, high regioselectivity, and easy operation.
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Affiliation(s)
- Xiaoying Zou
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, China
| | - Lvyin Zheng
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, China
| | - Xiaoya Zhuo
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, China
| | - Yumei Zhong
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, China
| | - Yingying Wu
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, China
| | - Beining Yang
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, China
| | - Qifang He
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, China
| | - Wei Guo
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, China
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5
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Novel thiadiazol derivatives; design, synthesis, biological activity, molecular docking and molecular dynamics. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2022.134171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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6
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Prajapati VD, Prajapati RV, Purohit VB, Avalani JR, Sapariya NH, Kamani RD, Karad SC, Raval DK. N‐Chlorosuccinimide Mediated Regioselective Sulfenylation and Halogenation of 4
H
‐Pyrido[1,2‐
a
]pyrimidin‐4‐ones at Room Temperature. ChemistrySelect 2022. [DOI: 10.1002/slct.202204126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Vaibhav D. Prajapati
- Department of Chemistry Sardar Patel University Vallabh Vidyanagar- 388120 Gujarat India
| | - Ronak V. Prajapati
- Department of Chemistry Sardar Patel University Vallabh Vidyanagar- 388120 Gujarat India
| | - Vishal B. Purohit
- International Centre for Research on Innovative Biobased Materials (ICRI-BioM)- International Research Agenda Lodz University of Technology Zeromskiego 116 90-924 Lodz Poland
| | - Jemin R. Avalani
- Shri A. N. Patel P. G. Institute of Science & Research Anand 388001, Gujarat India
| | | | - Ronak D. Kamani
- Department of Chemistry Sardar Patel University Vallabh Vidyanagar- 388120 Gujarat India
| | - Sharad C. Karad
- Department of Chemistry Sardar Patel University Vallabh Vidyanagar- 388120 Gujarat India
| | - Dipak K. Raval
- Department of Chemistry Sardar Patel University Vallabh Vidyanagar- 388120 Gujarat India
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7
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Recent Advancement in Drug Design and Discovery of Pyrazole Biomolecules as Cancer and Inflammation Therapeutics. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27248708. [PMID: 36557840 PMCID: PMC9780894 DOI: 10.3390/molecules27248708] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 11/27/2022] [Accepted: 12/01/2022] [Indexed: 12/13/2022]
Abstract
Pyrazole, an important pharmacophore and a privileged scaffold of immense significance, is a five-membered heterocyclic moiety with an extensive therapeutic profile, viz., anti-inflammatory, anti-microbial, anti-anxiety, anticancer, analgesic, antipyretic, etc. Due to the expansion of pyrazolecent red pharmacological molecules at a quicker pace, there is an urgent need to put emphasis on recent literature with hitherto available information to recognize the status of this scaffold for pharmaceutical research. The reported potential pyrazole-containing compounds are highlighted in the manuscript for the treatment of cancer and inflammation, and the results are mentioned in % inhibition of inflammation, % growth inhibition, IC50, etc. Pyrazole is an important heterocyclic moiety with a strong pharmacological profile, which may act as an important pharmacophore for the drug discovery process. In the struggle to cultivate suitable anti-inflammatory and anticancer agents, chemists have now focused on pyrazole biomolecules. This review conceals the recent expansion of pyrazole biomolecules as anti-inflammatory and anticancer agents with an aim to provide better correlation among different research going around the world.
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8
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Feng J, Wang Y, Gao L, Yu Y, Baell JB, Huang F. Electrochemical Synthesis of Polysubstituted Sulfonated Pyrazoles via Cascade Intermolecular Condensation, Radical-Radical Cross Coupling Sulfonylation, and Pyrazole Annulation. J Org Chem 2022; 87:13138-13153. [PMID: 36166815 DOI: 10.1021/acs.joc.2c01609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Electrochemical synthesis of polysubstituted sulfonated pyrazoles from enaminones and sulfonyl hydrazides was established under metal-free, exogenous-oxidant-free, and mild conditions. By judicious choice of different electrochemical reaction conditions, NH2-functionalized enaminones or N,N-disubstituted enaminones can react with aryl/alkyl sulfonyl hydrazides to afford tetra- or trisubstituted sulfonated pyrazoles in moderate to good yields, respectively. The gram-scale electrochemical transformation demonstrated the efficiency and practicability of this synthetic strategy. In addition, the sulfonated NH-pyrazole can be obtained via the dissociation of the N-tosyl group. Mechanistic studies reveal that the electrochemical cascade reaction synthesis of polysubstituted sulfonated pyrazoles proceeded via the sequence of intermolecular condensation, radical-radical cross coupling sulfonylation, and pyrazole annulation.
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Affiliation(s)
- Jiajun Feng
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, PR China
| | - Yuzhi Wang
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, PR China
| | - Luoyu Gao
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, PR China
| | - Yang Yu
- School of Environmental Science and Engineering, Nanjing Tech University, Nanjing 211816, PR China
| | - Jonathan B Baell
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, PR China.,Medicinal Chemistry Theme, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia
| | - Fei Huang
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, PR China.,School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210023, PR China
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9
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Wang KK, Li YL, Jing J, Chen R, Zhao NN, Li ZH, Wang MY, Ji SK. Synthesis of 1,3,5-trisubstituted pyrazoles via 1,3-dipolar cycloaddition of nitrile imines with ninhydrin-derived Morita-Baylis-Hillman carbonates. Org Biomol Chem 2022; 20:6923-6930. [PMID: 35979893 DOI: 10.1039/d2ob01253g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An effective synthetic method for 1,3,5-trisubstituted pyrazoles via 1,3-dipolar cycloaddition reaction has been developed. This reaction could smoothly proceed between ninhydrin-derived Morita-Baylis-Hillman carbonates and nitrilimines to provide a wide scope of differently substituted pyrazoles in high yields (up to 95%). In addition, the reaction mechanism was also proposed to explain its regioselectivity.
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Affiliation(s)
- Kai-Kai Wang
- School of Pharmacy, Xinxiang University, Xinxiang 453000, P.R. of China.
| | - Yan-Li Li
- Medical College, Xinxiang University, Xinxiang 453000, P.R. of China
| | - Jun Jing
- School of Pharmacy, Xinxiang University, Xinxiang 453000, P.R. of China.
| | - Rongxiang Chen
- School of Pharmacy, Xinxiang University, Xinxiang 453000, P.R. of China.
| | - Na-Na Zhao
- School of Pharmacy, Xinxiang University, Xinxiang 453000, P.R. of China.
| | - Zhi-Hui Li
- School of Pharmacy, Xinxiang University, Xinxiang 453000, P.R. of China.
| | - Ming-Yue Wang
- School of Pharmacy, Xinxiang University, Xinxiang 453000, P.R. of China.
| | - Shuo-Ke Ji
- School of Pharmacy, Xinxiang University, Xinxiang 453000, P.R. of China.
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10
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Song T, Zhang Y, Wang C, Li Y, Yang Y. Photocatalytic Aerobic Oxysulfonylation of Alkynes to Access
β‐Keto
Sulfones Catalyzed by
OVs‐N‐Nb
2
O
5
. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202200410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Tao Song
- CAS Key Laboratory of Bio‐based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology Chinese Academy of Sciences, Shandong Energy Institute, Qingdao New Energy Shandong Laboratory Qingdao 266101 China
| | - Yinpan Zhang
- CAS Key Laboratory of Bio‐based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology Chinese Academy of Sciences, Shandong Energy Institute, Qingdao New Energy Shandong Laboratory Qingdao 266101 China
| | - Chun Wang
- School of Chemistry and Materials Science Nanjing Normal University Nanjing 210023 China
| | - Yafei Li
- School of Chemistry and Materials Science Nanjing Normal University Nanjing 210023 China
| | - Yong Yang
- CAS Key Laboratory of Bio‐based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology Chinese Academy of Sciences, Shandong Energy Institute, Qingdao New Energy Shandong Laboratory Qingdao 266101 China
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11
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Chen X, Lu S, Yan Y, Wang J, Yang L, Sun P. Hydrogen Bond‐enabled Catalyst and Additive‐free Oxy‐sulfonylation of Alkynes for the Synthesis of β‐Keto sulfones. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202101444] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Xingyu Chen
- Institute of Chinese Materia Medica and Artemisinin Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, P. R. China CHINA
| | - Sixian Lu
- China Academy of Chinese Medical Sciences Institute of Chinese Materia Medica CHINA
| | - Yuyan Yan
- Shenzhen People's Hospital ( Second Clinical Medical School of Jinan University; First Affiliated Hospital of Southern University of Science and Technology) CHINA
| | - Jigang Wang
- Institute of Chinese Materia Medica and Artemisinin Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, P. R. China SINGAPORE
| | - Lan Yang
- China Academy of Chinese Medical Sciences Institute of Chinese Materia Medica CHINA
| | - Peng Sun
- China Academy of Chinese Medical Sciences Institute of Chinese Materia Medica CHINA
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12
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Shingare R, Patil Y, Sangshetti J, Patil R, Rajani D, Madje B. Docking Stimulations and Primary Assessment of Newly Synthesized Benzene Sulfonamide Pyrazole Oxadiazole Derivatives as Potential Antimicrobial and Antitubercular Agents. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2036771] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
| | - Yogesh Patil
- Department of Chemistry, Aurangabad, Maharashtra, India
| | | | - Rajesh Patil
- Sinhgad Technical Education Society’s, Smt. Kashibai Navale College of Pharmacy, Pune, India
| | - Dhanji Rajani
- Microcare Laboratory and Tuberculosis Research Center, Surat, India
| | - Balaji Madje
- Department of Chemistry, Aurangabad, Maharashtra, India
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13
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CuI-catalyzed sulfenylation of 1-aryl trifluoromethyl pyrazolones: Direct formation of C-S-C bond using aryl iodides and carbon disulfide. J Fluor Chem 2022. [DOI: 10.1016/j.jfluchem.2021.109920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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14
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Eldeeb AH, Abo-Ashour MF, Angeli A, Bonardi A, Lasheen DS, Elrazaz EZ, Nocentini A, Gratteri P, Abdel-Aziz HA, Supuran CT. Novel benzenesulfonamides aryl and arylsulfone conjugates adopting tail/dual tail approaches: Synthesis, carbonic anhydrase inhibitory activity and molecular modeling studies. Eur J Med Chem 2021; 221:113486. [PMID: 33965860 DOI: 10.1016/j.ejmech.2021.113486] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 04/13/2021] [Accepted: 04/15/2021] [Indexed: 10/21/2022]
Abstract
New series of benzenesulfonamide and benzoic acid derivatives were designed and synthesized using tail/dual tail approach to improve potency and selectivity as carbonic anhydrase inhibitors. The synthesized compounds evaluated as CAIs against isoforms hCA I, II, IV and IX with acetazolamide (AAZ) as standard inhibitor. The benzenesulfonamide derivatives 7a-d, 8a-h, 12a-c, 13a and 15a-c showed moderate to potent inhibitory activity with selectivity toward isoform hCA II, especially, compound 13a with (Ki = 7.6 nM), while the benzoic acid analogues 12d-f, 13b and 15d-f didn't show any activity except compounds 12d,f and 15e that showed weak activity. Additionally, molecular docking was performed for compounds 7a, 8a, 8e, 12a, 13a and 15a on isoform hCA I, II to illustrate the possible interaction with the active site to justify the inhibitory activity.
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Affiliation(s)
- Assem H Eldeeb
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Egyptian Russian University, Badr City, Cairo, 11829, Egypt
| | - Mahmoud F Abo-Ashour
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Egyptian Russian University, Badr City, Cairo, 11829, Egypt.
| | - Andrea Angeli
- Department of NEUROFARBA, Section of Pharmaceutical and Nutraceutical Sciences, University of Florence, Polo Scientifico, Via U. Schiff 6, 50019, Sesto Fiorentino, Firenze, Italy
| | - Alessandro Bonardi
- Department of NEUROFARBA, Section of Pharmaceutical and Nutraceutical Sciences, University of Florence, Polo Scientifico, Via U. Schiff 6, 50019, Sesto Fiorentino, Firenze, Italy; Department of NEUROFARBA, Section of Pharmaceutical and Nutraceutical Sciences, Laboratory of Molecular Modeling Cheminformatics & QSAR, University of Florence, Polo Scientifico, Via U. Schiff 6, 50019, Sesto Fiorentino, Firenze, Italy
| | - Deena S Lasheen
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ain Shams University, P.O. Box 11566, Abbassia, Cairo, Egypt
| | - Eman Z Elrazaz
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ain Shams University, P.O. Box 11566, Abbassia, Cairo, Egypt
| | - Alessio Nocentini
- Department of NEUROFARBA, Section of Pharmaceutical and Nutraceutical Sciences, University of Florence, Polo Scientifico, Via U. Schiff 6, 50019, Sesto Fiorentino, Firenze, Italy; Department of NEUROFARBA, Section of Pharmaceutical and Nutraceutical Sciences, Laboratory of Molecular Modeling Cheminformatics & QSAR, University of Florence, Polo Scientifico, Via U. Schiff 6, 50019, Sesto Fiorentino, Firenze, Italy
| | - Paola Gratteri
- Department of NEUROFARBA, Section of Pharmaceutical and Nutraceutical Sciences, Laboratory of Molecular Modeling Cheminformatics & QSAR, University of Florence, Polo Scientifico, Via U. Schiff 6, 50019, Sesto Fiorentino, Firenze, Italy
| | - Hatem A Abdel-Aziz
- Department of Applied Organic Chemistry, National Research Center, Dokki, Cairo, 12622, Egypt
| | - Claudiu T Supuran
- Department of NEUROFARBA, Section of Pharmaceutical and Nutraceutical Sciences, University of Florence, Polo Scientifico, Via U. Schiff 6, 50019, Sesto Fiorentino, Firenze, Italy.
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15
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Mostfa MA, Gomaa H, Othman IMM, Ali GAM. Experimental and theoretical studies of a novel synthesized azopyrazole-benzenesulfonamide derivative as an efficient corrosion inhibitor for mild steel. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2021. [DOI: 10.1007/s13738-020-02106-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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16
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Rajai-Daryasarei S, Gohari MH, Mohammadi N. Reactions involving aryl methyl ketone and molecular iodine: a powerful tool in the one-pot synthesis of heterocycles. NEW J CHEM 2021. [DOI: 10.1039/d1nj03572j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The preparation of heterocyclic compounds has attracted great attention in organic chemistry because of their extensive application in the field of bioactive molecules, materials science, and natural products.
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Affiliation(s)
| | | | - Narges Mohammadi
- School of Chemistry, College of Science, University of Tehran, 14155-6455 Tehran, Iran
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17
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Prajapati RV, Prajapati VD, Purohit VB, Avalani JR, Kamani RD, Sapariya NH, Raval DK. Elemental sulfur and aryl iodides in copper(I)iodide catalyzed sulfenylation of 1-aryl-3-alkyl-1H-pyrazol-5(4H)-ones. RESULTS IN CHEMISTRY 2021. [DOI: 10.1016/j.rechem.2021.100226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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18
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Mulina OM, Ilovaisky AI, Parshin VD, Terent'ev AO. Oxidative Sulfonylation of Multiple Carbon‐Carbon bonds with Sulfonyl Hydrazides, Sulfinic Acids and their Salts. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000708] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Olga M. Mulina
- N. D. Zelinsky Institute of Organic Chemistry Russian Academy of Sciences, Leninsky Prospekt 47 119991 Moscow Russian Federation
| | - Alexey I. Ilovaisky
- N. D. Zelinsky Institute of Organic Chemistry Russian Academy of Sciences, Leninsky Prospekt 47 119991 Moscow Russian Federation
| | - Vadim D. Parshin
- N. D. Zelinsky Institute of Organic Chemistry Russian Academy of Sciences, Leninsky Prospekt 47 119991 Moscow Russian Federation
| | - Alexander O. Terent'ev
- N. D. Zelinsky Institute of Organic Chemistry Russian Academy of Sciences, Leninsky Prospekt 47 119991 Moscow Russian Federation
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19
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Arora M, Choudhary S, Singh PK, Sapra B, Silakari O. Structural investigation on the selective COX-2 inhibitors mediated cardiotoxicity: A review. Life Sci 2020; 251:117631. [PMID: 32251635 DOI: 10.1016/j.lfs.2020.117631] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Accepted: 03/31/2020] [Indexed: 01/30/2023]
Abstract
Initially, the selective COX-2 inhibitors were developed as safer alternatives to the conventional NSAIDs, but later on, most of them were withdrawn from the market due to the risk of heart attack and stroke. Celecoxib, the first selective COX-2 inhibitor, was approved by the Food and Drug Administration (FDA) in December 1998 and was taken back from the market in 2004. Since then, many coxibs have been discontinued one by one due to adverse cardiovascular events. United States (US), Australian and European authorities related to Therapeutic Goods Administration (TGA) implemented the requirements to carry the "Black box" warning on the labels of COX-2 drugs highlighting the risks of serious cardiovascular events. These facts encouraged the researchers to explore them well and find out the biochemical basis behind the cardiotoxicity. From the last few decades, the molecular mechanisms behind the coxibs have regained the attention, especially the specific structural features of the selective COX-2 inhibitors that are associated with cardiotoxicity. This review discusses the key structural features of the selective COX-2 inhibitors and underlying mechanisms that are responsible for the cardiotoxicity. This report also unfolds different strategies that have been reported in the last 10 years to combat the problem of selective COX-2 inhibitors mediated cardiotoxicity.
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Affiliation(s)
- Mohit Arora
- Molecular Modelling Lab (MML), Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, Punjab 147002, India
| | - Shalki Choudhary
- Molecular Modelling Lab (MML), Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, Punjab 147002, India
| | - Pankaj Kumar Singh
- Department of Chemistry and Pharmacy, University of Sassari, 07100 Sassari, Italy
| | - Bharti Sapra
- Molecular Modelling Lab (MML), Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, Punjab 147002, India
| | - Om Silakari
- Molecular Modelling Lab (MML), Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, Punjab 147002, India.
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20
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Mohsin NUA, Irfan M. Selective cyclooxygenase-2 inhibitors: A review of recent chemical scaffolds with promising anti-inflammatory and COX-2 inhibitory activities. Med Chem Res 2020. [DOI: 10.1007/s00044-020-02528-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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21
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Ragab FAEF, Mohammed EI, Abdel Jaleel GA, Selim AAMAER, Nissan YM. Synthesis of Hydroxybenzofuranyl-pyrazolyl and Hydroxyphenyl-pyrazolyl Chalcones and Their Corresponding Pyrazoline Derivatives as COX Inhibitors, Anti-inflammatory and Gastroprotective Agents. Chem Pharm Bull (Tokyo) 2020; 68:742-752. [PMID: 32741915 DOI: 10.1248/cpb.c20-00193] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Five new series of hydroxybenzofuranyl-pyrazolyl chalcones 3a,b, hydroxyphenyl-pyrazolyl chalcones 6a-c and their corresponding pyrazolylpyrazolines 4a, d, 7a-c and 8a-f have been synthesized and evaluated for their in vitro cyclooxygenase (COX)-1 and COX-2 inhibitory activity. All the synthesized compounds exhibited dual COX-1 and COX-2 inhibitory activity with obvious selectivity against COX-2. The pyrazolylpyrazolines 4a-d and 8a-f bearing two vicinal aryl moieties in the pyrazoline nucleus showed more selectivity towards COX-2. Within these two series, derivatives 4c, d and 8d-f bearing the benzenesulfonamide group were the most selective. Compounds 4a-d and 8a-f were further subjected to in vivo anti-inflammatory screening, ulcerogenic liability and showed good anti-inflammatory activity with no ulcerogenic effect. In addition compounds 4c and 8d as examples showed prostaglandin (PG)E2 inhibition % 44.23 and 51.4 respectively, tumor necrosis factor α (TNFα) inhibition % 33.48 and 41.41 respectively and gastroprotective effect in ethanol induced rodent gastric ulcer model. In addition, to explore the binding mode and selectivity of our compounds, 8d and celecoxib were docked into the active site of COX-1 and COX-2. It was found that compound 8d exhibited a binding pattern and interactions similar to that of celecoxib with COX-2 active site, while bitter manner of interaction than celecoxib to COX-1 active site.
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Affiliation(s)
| | | | | | | | - Yassin Mohammed Nissan
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Cairo University
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, October University for Modern Sciences and Arts (MSA)
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22
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Elmansi H, Nasr JJ, Rageh AH, El-Awady MI, Hassan GS, Abdel-Aziz HA, Belal F. Assessment of lipophilicity of newly synthesized celecoxib analogues using reversed-phase HPLC. BMC Chem 2019; 13:84. [PMID: 31384831 PMCID: PMC6661952 DOI: 10.1186/s13065-019-0607-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Accepted: 06/29/2019] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Lipophilicity is a physicochemical property of an essential importance in medicinal chemistry; therefore, fast and reliable measurement of lipophilicity will affect greatly the drug discovery process. RESULTS A series of N-benzenesulfonamide-1H-pyrazoles, oximes and hydrazones as celecoxib analogues was investigated with regard to their retention behavior using reversed-phase high performance liquid chromatography (RP-HPLC). The mobile phases employed for this study consist of a mixture of water and methanol in different proportions. In addition, the stationary phase utilized for this separation was C18 silanized silica gel and using 200 nm as a detection wavelength. The retention behavior of the investigated compounds was determined based on practical determination of log k at different concentrations of methanol (as an organic modifier) in the mobile phase ranging from 60 to 80%. It was observed that the retention of these compounds (expressed as log k) decreased in a linear manner with increasing the concentration of methanol. High correlation coefficients (more than 0.90 in most cases) were obtained for the relationship between the volume fraction of the organic solvent and the retention values represented as log k w. A comparative evaluation was carried out between chromatographically-obtained lipophilicity parameters (represented as lipophilicity chromatographic index log k w or isocratic chromatographic hydrophobicity index, φ 0) and the computationally calculated log P values (miLogP, ALOGP, ACD/Labs and ALOGPs). CONCLUSION It was found that a good correlation exists between the experimental and computed log P values. In the future, these results can give a deep insight about the anti-inflammatory and analgesic activity of the newly synthesized compounds.
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Affiliation(s)
- Heba Elmansi
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura, 35516 Egypt
| | - Jenny Jeehan Nasr
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura, 35516 Egypt
| | - Azza H. Rageh
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Assiut University, Assiut, 71526 Egypt
| | - Mohamed I. El-Awady
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura, 35516 Egypt
| | - Ghada S. Hassan
- Department of Medicinal Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura, 35516 Egypt
| | - Hatem A. Abdel-Aziz
- Department of Applied Organic Chemistry, National Research Centre, Dokki, 12622 Egypt
| | - Fathalla Belal
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura, 35516 Egypt
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23
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Tanimoto K, Ohkado R, Iida H. Aerobic Oxidative Sulfenylation of Pyrazolones and Pyrazoles Catalyzed by Metal-Free Flavin–Iodine Catalysis. J Org Chem 2019; 84:14980-14986. [DOI: 10.1021/acs.joc.9b02422] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Kazumasa Tanimoto
- Department of Chemistry, Graduate School of Natural Science and Technology, Shimane University, 1060 Nishikawatsu, Matsue 690-8504, Japan
| | - Ryoma Ohkado
- Department of Chemistry, Graduate School of Natural Science and Technology, Shimane University, 1060 Nishikawatsu, Matsue 690-8504, Japan
| | - Hiroki Iida
- Department of Chemistry, Graduate School of Natural Science and Technology, Shimane University, 1060 Nishikawatsu, Matsue 690-8504, Japan
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24
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Biçer A, Kaya R, Anıl B, Turgut Cin G, Gülcin İ, Gültekin MS. Synthesis of novel bis‐sulfone derivatives and their inhibition properties on some metabolic enzymes including carbonic anhydrase, acetylcholinesterase, and butyrylcholinesterase. J Biochem Mol Toxicol 2019; 33:e22401. [DOI: 10.1002/jbt.22401] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Revised: 08/05/2019] [Accepted: 09/18/2019] [Indexed: 02/01/2023]
Affiliation(s)
- Abdullah Biçer
- Department of Chemistry, Faculty of ScienceAkdeniz UniversityAntalya Turkey
| | - Rüya Kaya
- Central Research and Application LaboratoryAğrı İbrahim Çeçen UniversityAğrı Turkey
- Department of Chemistry, Faculty of ScienceAtatürk UniversityErzurum Turkey
| | - Barış Anıl
- Department of Chemistry, Faculty of ScienceAtatürk UniversityErzurum Turkey
| | - Günseli Turgut Cin
- Department of Chemistry, Faculty of ScienceAkdeniz UniversityAntalya Turkey
| | - İlhami Gülcin
- Department of Chemistry, Faculty of ScienceAtatürk UniversityErzurum Turkey
| | - Mehmet Serdar Gültekin
- Department of Chemistry, Faculty of ScienceAtatürk UniversityErzurum Turkey
- Faculty of PharmacyAğrı İbrahim Çeçen UniversityAğrı Turkey
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25
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Eze FU, Okoro UC, Ugwu DI, Okafor SN. Biological Activity Evaluation of Some New Benzenesulphonamide Derivatives. Front Chem 2019; 7:634. [PMID: 31620427 PMCID: PMC6759663 DOI: 10.3389/fchem.2019.00634] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Accepted: 09/02/2019] [Indexed: 12/18/2022] Open
Abstract
Bacterial resistance to antibiotics has become one of the most challenging problems of infectious disease treatment. Ten new derivatives of benzenesulphonamide bearing carboxamide functionality were synthesized and investigated for their in vivo anti-inflammatory, in vitro anti-microbial and anti-oxidant activities. The base promoted reactions of the appropriate amino acids with substituted benzenesulphonyl chlorides gave the benzene sulphonamides (3a-j) in excellent yields. Palladium mediated amidation of the benzenesulphonamides (3a-j) and butylamine gave the new carboxamides (4a-j) in excellent yield. Compounds 4a and 4c inhibited carrageenan induced rat-paw edema at 94.69, 89.66, and 87.83% each at 1, 2, and 3 h, respectively. In the antimicrobial activity, compound 4d (MIC 6.72 mg/mL) was most potent against E. coli, compound 4h (MIC 6.63 mg/mL) was the most active against S. aureus, compound 4a (MIC 6.67 and 6.45 mg/mL) was most active against P. aeruginosa and S. typhi, respectively, compound 4f (MIC 6.63 mg/mL) was the most active against B. subtilis, compounds 4e and 4h (MIC 6.63 mg/mL) each were the most active against C. albicans, while compound 4e (MIC 6.28 mg/mL) was most active against A. niger. Only compound 4e (IC50 0.3287 mg/mL) had comparable activity with Vitamin C (IC50 0.2090 mg/mL).
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Affiliation(s)
- Florence Uchenna Eze
- Department of Pure and Industrial Chemistry, University of Nigeria, Nsukka, Nigeria
| | | | - David Izuchukwu Ugwu
- Department of Pure and Industrial Chemistry, University of Nigeria, Nsukka, Nigeria
| | - Sunday N. Okafor
- Department of Pharmaceutical and Medicinal Chemistry, University of Nigeria, Nsukka, Nigeria
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26
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Taher ES, Ibrahim TS, Fares M, Al-Mahmoudy AMM, Radwan AF, Orabi KY, El-Sabbagh OI. Novel benzenesulfonamide and 1,2-benzisothiazol-3(2H)-one-1,1-dioxide derivatives as potential selective COX-2 inhibitors. Eur J Med Chem 2019; 171:372-382. [PMID: 30928709 DOI: 10.1016/j.ejmech.2019.03.042] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2018] [Revised: 03/01/2019] [Accepted: 03/16/2019] [Indexed: 02/07/2023]
Abstract
Two new series of 1,2-benzisothiazol-3(2H)-one-1,1-dioxide derivatives containing either five membered heterocyclic rings or aryl hydrazones were synthesized and evaluated for their in vitro COX-1/COX-2 inhibitory activity. In vivo anti-inflammatory evaluation revealed that benzenesulfonamides bearing pyrazole moiety 19, 20 and its cyclized form 23 exhibited the highest anti-inflammatory activity with comparable potency to celecoxib. Furthermore, the ulcerogenic activity evaluation showed that compounds 19, 20 and 23 exerted the minimal ulcer index in comparison to indomethacin as a reference drug. Docking studies of the most selective COX-2 derivatives were also carried out against COX-2 active site. Benzenesulfonamide derivatives 19 and 20 displayed higher predicted binding affinities inside the COX-2 active site. Molecular modelling simulation and drug likeness studies showed good agreement with the obtained biological evaluation.
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Affiliation(s)
- Ehab S Taher
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Al-Azhar University, 71524, Assiut, Egypt.
| | - Tarek S Ibrahim
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, King Abdulaziz University, 21589, Saudi Arabia; Pharmaceutical Organic Chemistry Department Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt
| | - Mohamed Fares
- School of Chemistry, University of Wollongong, Wollongong, 2522, NSW, Australia; School of Chemistry, The University of Sydney, 2006, NSW, Australia
| | - Amany M M Al-Mahmoudy
- Pharmaceutical Organic Chemistry Department Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt
| | - Abdullah F Radwan
- Biochemistry Department, Faculty of Pharmacy, Egyptian Russian University, 11829, Cairo, Egypt
| | - Khaled Y Orabi
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Health Sciences Center, Kuwait University, 13110, Safat, Kuwait
| | - Osama I El-Sabbagh
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Taif University, 11099, Taif, Saudi Arabia; Medicinal Chemistry Department, Faculty of Pharmacy, Zagazig University, 44519, Zagazig, Egypt
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27
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Hassan GS, Abdel Rahman DE, Abdelmajeed EA, Refaey RH, Alaraby Salem M, Nissan YM. New pyrazole derivatives: Synthesis, anti-inflammatory activity, cycloxygenase inhibition assay and evaluation of mPGES. Eur J Med Chem 2019; 171:332-342. [PMID: 30928706 DOI: 10.1016/j.ejmech.2019.03.052] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2018] [Revised: 03/19/2019] [Accepted: 03/20/2019] [Indexed: 10/27/2022]
Abstract
New pyrazole derivatives 2-5 were synthesized and evaluated for their COX-1 and COX-2 inhibitory activity in vitro. All compounds showed good inhibitory activity at a nanomolar level and most compounds exhibited selectivity towards COX-2 inhibition. Compounds 2a, 3b, 4a, 5b and 5e exhibited IC50 towards COX-2 enzyme of 19.87, 39.43, 61.24, 38.73 and 39.14 nM, respectively. Furthermore, compounds 3b, 4a, 5b and 5e exhibited a selectivity index of 22.21, 14.35, 17.47 and 13.10, respectively. The most active compounds were further subjected to in vivo anti-inflammatory assay. The tested compounds showed better or comparable activity to celecoxib as positive control. In order to explore their binding mode and selectivity behaviour, molecular docking in the active site of COX-2 was carried out for these derivatives. Analysis of the docked poses of the compounds showed that they adopt similar conformations to the highly selective COX-2 inhibitor, SC-558. The docking pose of compound 3b was confirmed by molecular dynamics. All the tested compounds exhibited potent inhibitory effect on the production of PGE2, in addition to their inhibition of COX-2 enzyme.
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Affiliation(s)
- Ghaneya S Hassan
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr Elini St., Cairo 11562, Egypt; Pharmaceutical Chemistry Department, Faculty of Pharmacy, Badr University in Cairo, Badr City, Cairo 11829, Egypt
| | - Doaa E Abdel Rahman
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr Elini St., Cairo 11562, Egypt
| | - Esraa A Abdelmajeed
- National Cancer Institute, Cairo University, FomElkhalig, Kasr Elaini St., Cairo 11796, Egypt
| | - Rana H Refaey
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, October University for Modern Sciences and Arts (MSA), Giza, Egypt.
| | - M Alaraby Salem
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, October University for Modern Sciences and Arts (MSA), Giza, Egypt
| | - Yassin M Nissan
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr Elini St., Cairo 11562, Egypt; Pharmaceutical Chemistry Department, Faculty of Pharmacy, October University for Modern Sciences and Arts (MSA), Giza, Egypt
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28
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Tao Z, Gomha SM, Badrey MG, El-Idreesy TT, Eldebss TMA. Novel 4-Heteroaryl-antipyrines: Synthesis, Molecular Docking, and Evaluation as Potential Anti-breast Cancer Agents. J Heterocycl Chem 2018. [DOI: 10.1002/jhet.3305] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Ziqi Tao
- Nanjing University of Chinese Medicine; XuZhou Central Hospital; XuZhou China
| | - Sobhi M. Gomha
- Department of Chemistry, Faculty of Science; Cairo University; Giza 12613 Egypt
| | - Mohamed G. Badrey
- Department of Chemistry, Faculty of Science; Fayoum University; Fayoum 63514 Egypt
| | - Tamer T. El-Idreesy
- Department of Chemistry, Faculty of Science; Cairo University; Giza 12613 Egypt
- Department of Chemistry, School of Sciences and Engineering; The American University in Cairo; New Cairo 11835 Egypt
| | - Taha M. A. Eldebss
- Department of Chemistry, Faculty of Science; Cairo University; Giza 12613 Egypt
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29
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Ibrahim HS, Allam HA, Mahmoud WR, Bonardi A, Nocentini A, Gratteri P, Ibrahim ES, Abdel-Aziz HA, Supuran CT. Dual-tail arylsulfone-based benzenesulfonamides differently match the hydrophobic and hydrophilic halves of human carbonic anhydrases active sites: Selective inhibitors for the tumor-associated hCA IX isoform. Eur J Med Chem 2018; 152:1-9. [PMID: 29684705 DOI: 10.1016/j.ejmech.2018.04.016] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2018] [Revised: 03/18/2018] [Accepted: 04/08/2018] [Indexed: 01/08/2023]
Abstract
The synthesis and characterization of two new sets of arylsulfonehydrazone benzenesulfonamides (4a-4i with phenyl tail and 4j-4q with tolyl tail) are reported. The compounds were designed according to a dual-tails approach to modulate the interactions of the ligands portions at the outer rim of both hydrophobic and hydrophilic active site halves of human isoforms of carbonic anhydrase (CA, EC 4.2.1.1). The synthesized sulfonamides were evaluated in vitro for their inhibitory activity against the following human (h) isoforms, hCA I, II, IV and IX. With the latter being a validated anticancer drug target and a marker of tumor hypoxia, attractive results arose from the Compounds' inhibitory screening in terms of potency and selectivity. Indeed, whereas the first subset of compounds 4a-4i exhibited great efficacy in inhibiting both the ubiquitous, off-target hCA II (KIs 9.5-172.0 nM) and hCA IX (KIs 7.5-131.5 nM), the second subset of tolyl-bearing derivatives 4j-4q were shown to possess a selective hCA IX inhibitory action over isoforms I, II and IV. The most selective compounds 4l and 4n were further screened for their in vitro cytotoxic activity against MCF-7 and MDA-MB-231 cancer cell lines under hypoxic conditions. The selective IX/II inhibitory trend of 4j-4q compared to those of compounds 4a-4i was unveiled by docking studies. Further exploration of these molecules could be useful for the development of novel antitumor agents with a selective CA inhibitory mechanism.
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Affiliation(s)
- Hany S Ibrahim
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Egyptian Russian University, Badr City, Cairo, 11829, Egypt.
| | - Heba Abdelrasheed Allam
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Cairo University, Cairo, 11562, Egypt
| | - Walaa R Mahmoud
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Cairo University, Cairo, 11562, Egypt
| | - Alessandro Bonardi
- Università degli Studi di Firenze, Department NEUROFARBA - Pharmaceutical and Nutraceutical section, University of Firenze, via Ugo Schiff 6, I-50019, Sesto Fiorentino, Firenze, Italy; Department of NEUROFARBA, Section of Pharmaceutical and Nutraceutical Sciences, Laboratory of Molecular Modeling Cheminformatics & QSAR, University of Florence, Polo Scientifico, Via U. Schiff 6, 50019, Sesto Fiorentino, Firenze, Italy
| | - Alessio Nocentini
- Università degli Studi di Firenze, Department NEUROFARBA - Pharmaceutical and Nutraceutical section, University of Firenze, via Ugo Schiff 6, I-50019, Sesto Fiorentino, Firenze, Italy; Department of NEUROFARBA, Section of Pharmaceutical and Nutraceutical Sciences, Laboratory of Molecular Modeling Cheminformatics & QSAR, University of Florence, Polo Scientifico, Via U. Schiff 6, 50019, Sesto Fiorentino, Firenze, Italy
| | - Paola Gratteri
- Department of NEUROFARBA, Section of Pharmaceutical and Nutraceutical Sciences, Laboratory of Molecular Modeling Cheminformatics & QSAR, University of Florence, Polo Scientifico, Via U. Schiff 6, 50019, Sesto Fiorentino, Firenze, Italy
| | - Eslam S Ibrahim
- Department of Microbiology and Immunology, Faculty of Pharmacy, Cairo University, Cairo, 11562, Egypt
| | - Hatem A Abdel-Aziz
- Department of Applied Organic Chemistry, National Research Center, Dokki, Giza, P.O. Box 12622, Egypt
| | - Claudiu T Supuran
- Università degli Studi di Firenze, Department NEUROFARBA - Pharmaceutical and Nutraceutical section, University of Firenze, via Ugo Schiff 6, I-50019, Sesto Fiorentino, Firenze, Italy.
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30
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Li LX, Dong DQ, Hao SH, Wang ZL. Direct sulfonylation of pyrazolones with sodium sulfinates catalyzed by TBAI in water. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.03.023] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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31
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Benzene sulfonamide pyrazole thio-oxadiazole hybrid as potential antimicrobial and antitubercular agents. RESEARCH ON CHEMICAL INTERMEDIATES 2018. [DOI: 10.1007/s11164-018-3396-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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32
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Ugwu DI, Okoro UC, Ukoha PO, Gupta A, Okafor SN. Novel anti-inflammatory and analgesic agents: synthesis, molecular docking and in vivo studies. J Enzyme Inhib Med Chem 2018; 33:405-415. [PMID: 29372659 PMCID: PMC7011796 DOI: 10.1080/14756366.2018.1426573] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Twelve new derivatives of benzothiazole bearing benzenesulphonamide and carboxamide were synthesised and investigated for their in vivo anti-inflammatory, analgesic and ulcerogenic activities. Molecular docking showed an excellent binding interaction of the synthesised compounds with the receptors, with 17c showing the highest binding energy (–12.50 kcal/mol). Compounds 17c and 17i inhibited carrageenan-induced rat paw oedema at 72, 76, and 80% and 64, 73, and 78% at 1 h, 2 h, and 3 h, respectively. In the analgesic activity experiment, compounds 17c, 17 g, and 17i had ED50 (µM/kg) of 96, 127, and 84 after 0.5 h; 102, 134, and 72 after 1 h and 89, 156, and 69 µM/kg after 2 h, respectively, which were comparable with 156, 72, and 70 µM/kg for celecoxib. The ulcerogenic index of the most active derivatives 17c and 17i were 0.82 and 0.89, respectively, comparable to 0.92 for celecoxib. The physicochemical studies of the new derivatives showed that they will not have oral bioavailability problems.
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Affiliation(s)
- David Izuchukwu Ugwu
- a Department of Pure and Industrial Chemistry , University of Nigeria , Nsukka , Nigeria.,b Department of Chemistry , Indian Institute of Technology , Kanpur , India
| | | | - Pius Onyeoziri Ukoha
- a Department of Pure and Industrial Chemistry , University of Nigeria , Nsukka , Nigeria
| | - Astha Gupta
- b Department of Chemistry , Indian Institute of Technology , Kanpur , India
| | - Sunday N Okafor
- a Department of Pure and Industrial Chemistry , University of Nigeria , Nsukka , Nigeria.,c Department of Pharmaceutical and Medicinal Chemistry , University of Nigeria , Nsukka , Nigeria
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33
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Ugwu DI, Okoro UC, Ahmad H. New carboxamide derivatives bearing benzenesulphonamide as a selective COX-II inhibitor: Design, synthesis and structure-activity relationship. PLoS One 2017; 12:e0183807. [PMID: 28922386 PMCID: PMC5602572 DOI: 10.1371/journal.pone.0183807] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Accepted: 08/13/2017] [Indexed: 02/02/2023] Open
Abstract
Sixteen new carboxamide derivatives bearing substituted benzenesulphonamide moiety (7a-p) were synthesized by boric acid mediated amidation of appropriate benzenesulphonamide with 2-amino-4-picoline and tested for anti-inflammatory activity. One compound 7c showed more potent anti-inflammatory activity than celecoxib at 3 h in carrageenan-induced rat paw edema bioassay. Compounds 7g and 7k also showed good anti-inflammatory activity comparable to celecoxib. Compound 7c appeared selectivity index (COX-2/COX-1) better than celecoxib. Compound 7k appeared selectivity index (COX-2/COX-1) a little higher than the half of celecoxib while compound 7g is non-selective for COX-2. The LD50 of compounds 7c, 7g and 7k were comparable to celecoxib.
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Affiliation(s)
- David Izuchukwu Ugwu
- Department of Pure and Industrial Chemistry, University of Nigeria, Nsukka, Nigeria
- Department of Chemistry, Indian Institute of Technology, Kanpur, India
- * E-mail:
| | | | - Hilal Ahmad
- Department of Chemistry, Indian Institute of Technology, Kanpur, India
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Wei W, Cui H, Yang D, Liu X, He C, Dai S, Wang H. Metal-free molecular iodine-catalyzed direct sulfonylation of pyrazolones with sodium sulfinates leading to sulfonated pyrazoles at room temperature. Org Chem Front 2017. [DOI: 10.1039/c6qo00403b] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple and highly efficient iodine-catalyzed sulfonylation of pyrazolones with sodium sulfinates has been developed under mild and metal-free conditions.
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Affiliation(s)
- Wei Wei
- The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- China
| | - Huanhuan Cui
- The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- China
| | - Daoshan Yang
- The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- China
| | - Xiaoxia Liu
- The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- China
| | - Chenglong He
- The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- China
| | - Shicui Dai
- The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- China
| | - Hua Wang
- The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- China
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35
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The therapeutic voyage of pyrazole and its analogs: A review. Eur J Med Chem 2016; 120:170-201. [DOI: 10.1016/j.ejmech.2016.04.077] [Citation(s) in RCA: 262] [Impact Index Per Article: 29.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Revised: 04/25/2016] [Accepted: 04/28/2016] [Indexed: 02/05/2023]
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Duan X, Wang Y, Feng W, Yang Y, Li H, Li S, Yang X, Zhang J, Wang S, Zhou G, Zhou C. Design, synthesis and biological evaluation of some novel N-arylpyrazole derivatives bearing the sulfonamide moiety as cytotoxic agents. RESEARCH ON CHEMICAL INTERMEDIATES 2016. [DOI: 10.1007/s11164-016-2620-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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37
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Yang J, Liu YY, Song RJ, Peng ZH, Li JH. Copper-Mediated 1,2-Difunctionalization of Styrenes with Sodium Arylsulfinates andtert-Butyl Nitrite: Facile Access to α-Sulfonylethanone Oximes. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600109] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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38
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Bassaco MM, Fortes MP, Kaufman TS, Silveira CC. Metal-free synthesis of 3,5-disubstituted 1H- and 1-aryl-1H-pyrazoles from 1,3-diyne-indole derivatives employing two successive hydroaminations. RSC Adv 2015. [DOI: 10.1039/c4ra16439c] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The uncatalyzed synthesis of 3,5-disubstituted 1H- and 1-aryl-1H-pyrazoles derived from 1,3-diyne indoles was successfully carried out in PEG 400. The scope and limitations of the reaction were studied.
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Affiliation(s)
- Mariana M. Bassaco
- Departamento de Química
- Universidade Federal de Santa Maria
- Santa Maria
- Brazil
| | - Margiani P. Fortes
- Departamento de Química
- Universidade Federal de Santa Maria
- Santa Maria
- Brazil
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Alanazi AM, El-Azab AS, Al-Suwaidan IA, ElTahir KEH, Asiri YA, Abdel-Aziz NI, Abdel-Aziz AAM. Structure-based design of phthalimide derivatives as potential cyclooxygenase-2 (COX-2) inhibitors: anti-inflammatory and analgesic activities. Eur J Med Chem 2014; 92:115-23. [PMID: 25549551 DOI: 10.1016/j.ejmech.2014.12.039] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2014] [Revised: 12/22/2014] [Accepted: 12/23/2014] [Indexed: 12/19/2022]
Abstract
A group of 30 cyclic imides (1-10a-c) was designed for evaluation as a selective COX-2 inhibitor and investigated in vivo for anti-inflammatory and analgesic activities. Compounds 6a, 6b, 7a and 7b exhibit optimal COX-2 inhibitory potency (IC50 = 0.18, 0.24, 0.28 and 0.36 μM; respectively) and selectivity index (SI) range of 363-668. In vitro COX-1/COX-2 inhibition structure-activity studies identified compound 6a as a highly potent (IC50 = 0.18 μM), and an extremely selective [COX-2 (SI) = 668] comparable to celecoxib [COX-2 (SI) > 384], COX-2 inhibitor that showed superior anti-inflammatory activity (ED50 = 54.0 mg/kg) relative to diclofenac (ED50 = 114 mg/kg). Molecular Docking study of the synthesized compound 6a into the active site of COX-2 revealed a similar binding mode to SC-558, a selective COX-2 inhibitor. Docking study showed that the methoxy moeities of 6a inserted deep inside the 2°-pocket of the COX-2 active site, where the O-atoms of such groups underwent an H-bonding interaction with His(90) (3.02 Å), Arg(513) (1.94, 2.83 Å), and Gln(192) (3.25 Å).
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Affiliation(s)
- Amer M Alanazi
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Adel S El-Azab
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia; Department of Organic Chemistry, Faculty of Pharmacy, Al-Azhar University, Cairo 11884, Egypt
| | - Ibrahim A Al-Suwaidan
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Kamal Eldin H ElTahir
- Department of Pharmacology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Yousif A Asiri
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Naglaa I Abdel-Aziz
- Department of Medicinal Chemistry, Faculty of Pharmacy, University of Mansoura, Mansoura 35516, Egypt
| | - Alaa A-M Abdel-Aziz
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia; Department of Medicinal Chemistry, Faculty of Pharmacy, University of Mansoura, Mansoura 35516, Egypt.
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Karad SC, Purohit VB, Raval DK. Design, synthesis and characterization of fluoro substituted novel pyrazolylpyrazolines scaffold and their pharmacological screening. Eur J Med Chem 2014; 84:51-8. [DOI: 10.1016/j.ejmech.2014.07.008] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2014] [Revised: 07/02/2014] [Accepted: 07/03/2014] [Indexed: 02/05/2023]
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Abstract
The reaction of nitrous acid with 1-aryl-2-(arylsulfonyl)ethanones3a–eafforded the unexpected arenecarboxylic acids12a–e, formic acid14, and benzene/4-toluenesulfinic acid15a,bthrough oxidative cleavage reaction. 4-Chlorobenzoic acid (12a), [1,1′-biphenyl]-4-carboxylic acid (12b), 2-naphthoic acid (12c), 2-thiophenecarboxylic acid (12d), and 2-benzofurancarboxylic acid (12e) were isolated in 72%, 62%, 55%, 58%, and 62% yields, respectively. The reported mechanistic pathways proposed the production of 1-aryl-2-(phenyl/tolylsulfonyl)ethane-1,2-dione7instead of arenecarboxylic acids12. A mechanistic pathway to explain the reaction of nitrous acid with 1-aryl-2-(arylsulfonyl)ethanones3a–ewas suggested. In this pathway, the intermediate 1,2-oxazete10lost benzene/4-toluenesulfinic acid15to produce 1,2-oxazet-3-one11. Ring cleavage of the latter intermediate afforded the arenecarboxylic acids12.
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Synthesis and X-Ray Structure of (1 Z,2 Z)-1,2-Bis(2-(phenylsulfonyl)-1-(4-tolyl)ethylidene)hydrazine. J CHEM-NY 2014. [DOI: 10.1155/2014/929401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The title compound (1Z,2Z)-1,2-bis(2-(phenylsulfonyl)-1-(4-tolyl)ethylidene)hydrazine (5) was prepared, in 78% yield, by the reaction of 2-(phenylsulfonyl)-1-(4-tolyl)ethan-1-one (3) with hydrazine hydrate in acetic acid at 90°C under microwave irradiation in a closed vessel with power 100 W for 3 min. The structure of the newly synthesized compound was established under the basis of its IR, mass,1H NMR, and X-ray single crystal analysis. The crystal of5belongs to monoclinic space group,P21/c, witha=5.2944(3) Å,b=17.5748(9) Å,c=15.4701(8) Å,β=105.767(4)°,Z=2,V=1385.30(13) Å3,Dc=1.306 Mg m−3,μ=2.05 mm−1,F(000)=572,R=0.075, andwR=0.224for 1419 observed reflections withI>2σ(I). The asymmetric unit of compound5contains one molecule withZconfiguration about the C7=N1 and C7A=N1A double bond. ThisZconfiguration of5is stabilized by intramolecular hydrogen bonds C1–H1A⋯N1 and C1A–H1AA⋯N1A. The molecular packing in the crystal structure of5is stabilized by intermolecular interactions forming a three-dimensional network.
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Microwave-Assisted Synthesis and Characterization of Certain Oximes, Hydrazones, and Olefins Derived fromβ-Keto Sulfones. J CHEM-NY 2014. [DOI: 10.1155/2014/532467] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
A new series ofβ-keto sulfone derivatives containing oximes4a–e, hydrazones5a, b, and chalcones7a–dwere prepared using microwave irradiation (MWI) by the reaction ofβ-keto sulfones3with hydroxyl amine, hydrazines, and aromatic aldehydes, respectively. The comparative study between microwave irradiation and conventional syntheses showed that MWI is effective in the synthesis of the title compounds through shortening of the reaction time and improvements in their yields. The structures of the synthesized compounds were established under the basis of their spectral data and X-ray single crystal analysis of compound5a. The crystal of5abelongs to triclinic space groupP-1, witha=5.7735 (2) Å,b=9.3224 (3) Å,c=13.1696 (5) Å,α=76.411 (1)°,β=89.571 (1)°,γ=79.9380 (9)°,Z=2, V=677.97 (4) Å3,Dc=1.513 Mg m−3,μ=0.44 mm−1,F(000)=320,R=0.026, andwR=0.070for 2690 observed reflections withI>2σ(I).
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