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Asif M, Almehmadi M, Alsaiari AA, Allahyani M. Diverse Pharmacological Potential of different Substituted Pyrazole Derivatives. Curr Org Synth 2024; 21:858-888. [PMID: 37861007 DOI: 10.2174/0115701794260444230925095804] [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: 06/07/2023] [Revised: 08/01/2023] [Accepted: 08/25/2023] [Indexed: 10/21/2023]
Abstract
The chemistry of heterocyclic compounds has been a topic of research interest. Some five-membered heterocyclic compounds have been the subject of extensive research due to their different types of pharmacological effects. The five-membered nitrogen-containing heterocyclic compounds pyrazole, pyrazoline, and pyrazolone derivatives have a lot of interest in the fields of medical and agricultural chemistry due to their diverse spectrum of therapeutic activities. Various substituted pyrazole, pyrazoline, and pyrazolone compounds exhibited diverse pharmacological effects like Anti-microbial, anti-inflammatory, anti-tubercular, anti-fungal, anti-malarial, anti-diabetic, diuretic, anti-depressant, anticonvulsant, antioxidant, anti-leishmanial, antidiabetic, and antiviral, etc. In recent decades, the synthesis of numerous pyrazole, pyrazoline, and pyrazolone derivatives by different synthetic methods as well as research into their chemical and biological behavior have become more important. This review focuses on synthetic methods of the pyrazole, pyrazoline, and pyrazolone derivatives, which have significant biological properties and a variety of applications.
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Affiliation(s)
- Mohammad Asif
- Department of Pharmaceutical Chemistry, Era College of Pharmacy, Era University, Lucknow, 226003, Uttar Pradesh, India
| | - Mazen Almehmadi
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Taif University, P.O. Box 11099, Taif, 21944, Saudi Arabia
| | - Ahad Amer Alsaiari
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Taif University, P.O. Box 11099, Taif, 21944, Saudi Arabia
| | - Mamdouh Allahyani
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Taif University, P.O. Box 11099, Taif, 21944, Saudi Arabia
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2
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Ahsan MJ, Ali A, Ali A, Thiriveedhi A, Bakht MA, Yusuf M, Salahuddin, Afzal O, Altamimi AS. Pyrazoline Containing Compounds as Therapeutic Targets for Neurodegenerative Disorders. ACS OMEGA 2022; 7:38207-38245. [PMID: 36340076 PMCID: PMC9631758 DOI: 10.1021/acsomega.2c05339] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 10/03/2022] [Indexed: 09/21/2023]
Abstract
Pyrazolines are a significant class of heterocyclic compounds with essential biological activities. They are quite stable, which has inspired medicinal chemists to experiment with the ring's structure in many different ways to create a variety of pharmacological activities. The structures of numerous commercially available therapeutic agents contain a pyrazoline ring. Pyrazolines are well-known for their ability to treat neurodegenerative diseases. The neurodegenerative diseases that affect huge populations globally include Alzheimer's disease (AD), Parkinson's disease (PD), and psychiatric disorders. The neuroprotective properties of pyrazolines published since 2003 are covered in the current review. Structure-activity relationships (SARs), molecular docking simulation, anticholinesterase (anti-AChE), and monoamine oxidase (MAO A/B) inhibitory actions are all covered in this article. Pyrazolines were discovered to have beneficial effects in the management of AD and were revealed to be inhibitors of acetylcholine esterase (AChE) and beta-amyloid (Aβ) plaques. They were discovered to be efficient against PD and also targeted MAO B and COMT. It was discovered that the pyrazolines block MAO A to treat psychiatric diseases. Pyrazolines are significant heteroaromatic scaffolds with a variety of biological functions. They were discovered to be remarkably stable and serve as an indispensable anchor for the development of new drugs. By blocking AChE and MAOs, they may be used to treat neurodegenerative diseases. The discussion outlined here is an essential and helpful resource for medicinal chemists who are investigating and applying pyrazolines in neurodegenerative research initiatives as well as to expedite future research programs on neurodegenerative disorders.
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Affiliation(s)
- Mohamed Jawed Ahsan
- Department
of Pharmaceutical Chemistry, Maharishi Arvind
College of Pharmacy, Jaipur, Rajasthan 302 039, India
| | - Amena Ali
- Department
of Pharmaceutical Chemistry, College of Pharmacy, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Abuzer Ali
- Department
of Pharmacognosy, College of Pharmacy, Taif
University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Arunkumar Thiriveedhi
- Vignan’s
Foundation for Science, Technology & Research Deemed to be University
Guntur, Vadlamudi, Andhra Pradesh 522213, India
| | - Mohammed A. Bakht
- Department
of Chemistry, College of Science and Humanity Studies, Prince Sattam Bin Abdulaziz University, P.O. Box 83, Al-Kharj 11942, Saudi Arabia
| | - Mohammad Yusuf
- Department
of Clinical Pharmacy, College of Pharmacy, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Salahuddin
- Department
of Pharmaceutical Chemistry, Noida Institute
of Technology (Pharmacy Institute), Knowledge Park-2, Greater Noida, Uttar
Pradesh 201 306, India
| | - Obaid Afzal
- Department
of Pharmaceutical Chemistry, College of
Pharmacy, Prince Sattam Bin Abdulaziz University, P.O. Box- 173, Al-Kharj 11942, Saudi Arabia
| | - Abdulmalik Saleh
Alfawaz Altamimi
- Department
of Pharmaceutical Chemistry, College of
Pharmacy, Prince Sattam Bin Abdulaziz University, P.O. Box- 173, Al-Kharj 11942, Saudi Arabia
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3
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Brain permeable curcumin-based pyrazoline analogs: MAO inhibitory and antioxidant activity. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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4
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Tiwari A, Bendi A, Bhathiwal AS. An Overview on Synthesis and Biological Activity of Chalcone Derived Pyrazolines. ChemistrySelect 2021. [DOI: 10.1002/slct.202103779] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Aditi Tiwari
- Department of Chemistry Faculty of Science Shree Guru Gobind Singh Tricentenary University Gurugram 122505 Haryana India
| | - Anjaneyulu Bendi
- Department of Chemistry Faculty of Science Shree Guru Gobind Singh Tricentenary University Gurugram 122505 Haryana India
| | - Anirudh Singh Bhathiwal
- Department of Chemistry Faculty of Science Shree Guru Gobind Singh Tricentenary University Gurugram 122505 Haryana India
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Rehuman NA, Mathew B, Jat RK, Nicolotti O, Kim H. A Comprehensive Review of Monoamine Oxidase-A Inhibitors in their Syntheses and Potencies. Comb Chem High Throughput Screen 2021; 23:898-914. [PMID: 32342809 DOI: 10.2174/1386207323666200428091306] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 12/30/2019] [Accepted: 01/29/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Monoamine oxidases (MAOs) play a crucial role during the development of various neurodegenerative disorders. There are two MAO isozymes, MAO-A and MAO-B. MAO-A is a flavoenzyme, which binds to the outer mitochondrial membrane and catalyzes the oxidative transformations of neurotransmitters like serotonin, norepinephrine, and dopamine. MATERIALS AND METHODS Focus on synthetic studies has culminated in the preparation of many MAOA inhibitors, and advancements in combinatorial and parallel synthesis have accelerated the developments of synthetic schemes. Here, we provided an overview of the synthetic protocols employed to prepare different classes of MAO-A inhibitors. We classified these inhibitors according to their molecular scaffolds and the synthetic methods used. RESULTS Various synthetic and natural derivatives from a different class of MAO-A inhibitors were reported. CONCLUSION The review provides a valuable tool for the development of a new class of various selective MAO-A inhibitors for the treatment of depression and other anxiety disorders.
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Affiliation(s)
- Nisha A Rehuman
- Department of Pharmaceutical Chemistry, JJTU University, Jhunjhunu, India
| | - Bijo Mathew
- Department of Pharmaceutical Chemistry, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, Amrita Health Science Campus, Kochi-682, India
| | - Rakesh K Jat
- Department of Pharmaceutical Chemistry, JJTU University, Jhunjhunu, India
| | - Orazio Nicolotti
- Dipartimento di Farmacia-Scienze del Farmaco, Universita degli Studi di Bari "Aldo Moro", via E. Orabona, 4, I-70125 Bari, Italy
| | - Hoon Kim
- Department of Pharmacy, and Research Institute of Life Pharmaceutical Sciences, Sunchon National University, Suncheon 57922, Korea
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Gabriel CER, Nguyen TT, Gargano EM, Fisher JF, Chang M, Mobashery S. Metabolism of the Selective Matrix Metalloproteinase-9 Inhibitor ( R)-ND-336. ACS Pharmacol Transl Sci 2021; 4:1204-1213. [PMID: 34151210 DOI: 10.1021/acsptsci.1c00063] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Indexed: 01/02/2023]
Abstract
(R)-ND-336-designated as compound (R)-5-is a highly selective inhibitor of matrix metalloproteinase (MMP)-9 with efficacy in accelerating diabetic wound healing in murine models. (R)-ND-336 belongs to the class of thiirane inhibitors of MMPs and it is currently undergoing Investigation New Drug (IND)-enabling studies. We investigated the in vitro metabolism of (R)-ND-336 using S9 fractions obtained from mice, rats, dogs, minipigs, monkeys, and humans in order to select the rodent and nonrodent species for toxicology studies. Three metabolites were observed. One metabolite, M3, was observed across all species. Metabolite M2 was found in rats, monkeys, and humans. Metabolite M1 was observed only in rats. The identities of the metabolites were suggested by liquid chromatography/tandem mass spectroscopy (LC/MS-MS) analyses, which were authenticated by comparison to synthetic samples. Metabolites M2 and M3 arise from oxidative deamination of (R)-ND-336 by monoamine oxidase to give the arylaldehyde as a transient (and unobserved) intermediate. Reductive metabolism of this aldehyde gives the alcohol metabolite M2, while further oxidative metabolism of the aldehyde produces the carboxylate metabolite M3. A minor route of metabolism, seen only in rats, is N-acetylation of (R)-ND-336 to give the acetamide M1. The metabolism of (R)-ND-336 is distinctly different from that of the prototype member of this thiirane class ((±)-1, lacking the 4-aminomethyl aryl substituent) which is metabolized primarily by oxidation α to the sulfone to lead to a benzenesulfinate metabolite. All three metabolites are poorer MMP-9 inhibitors, compared to (R)-ND-336 (MMP-9, K i = 19 nM): M3, MMP-9 IC50 > 100 μM; M2, K i = 390 nM; and M1, IC50 > 100 μM). The rat and the minipig were selected as the rodent and nonrodent species, respectively, for toxicology studies.
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Affiliation(s)
- Charles Edwin Raja Gabriel
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Trung T Nguyen
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Emanuele Marco Gargano
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Jed F Fisher
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Mayland Chang
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Shahriar Mobashery
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
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Wu SM, Qiu XY, Liu SJ, Sun J. Single Heterocyclic Compounds as Monoamine Oxidase Inhibitors: From Past to Present. Mini Rev Med Chem 2020; 20:908-920. [PMID: 32116191 DOI: 10.2174/1389557520666200302114620] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 04/19/2019] [Accepted: 09/02/2019] [Indexed: 11/22/2022]
Abstract
Inhibitors of monoamine oxidase (MAO) have shown therapeutic values in a variety of neurodegenerative diseases such as depression, Parkinson's disease and Alzheimer's disease. Heterocyclic compounds exhibit a broad spectrum of biological activities and vital leading compounds for the development of chemical drugs. Herein, we focus on the synthesis and screening of novel single heterocyclic derivatives with MAO inhibitory activities during the past decade. This review covers recent pharmacological advancements of single heterocyclic moiety along with structure- activity relationship to provide better correlation among different structures and their receptor interactions.
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Affiliation(s)
- Su-Min Wu
- College of Science & Technology, Ningbo University, Ningbo, 315212, China
| | - Xiao-Yang Qiu
- College of Science & Technology, Ningbo University, Ningbo, 315212, China.,State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Shu-Juan Liu
- College of Science & Technology, Ningbo University, Ningbo, 315212, China
| | - Juan Sun
- School of Biological & Chemical Engineering, Zhejiang University of Science & Technology, Hangzhou 310023, China
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8
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New chalcone-type compounds and 2-pyrazoline derivatives: synthesis and caspase-dependent anticancer activity. Future Med Chem 2020; 12:493-509. [PMID: 32100558 DOI: 10.4155/fmc-2019-0342] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Aim: There is a continuous and urgent need for new anticancer agents with novel structures and target selectivity. Methods & results: The anticancer activity of the prepared compounds was assessed against human lung (A549) and stomach (AGS) cancer cell lines and evaluated in the noncancer human lung fibroblast (MRC-5) cell line. 2-Pyrazolines were devoid of toxicity in all cell lines used, chalcones bearing a β-(benz)imidazole moiety being toxic toward AGS cell line. Mechanistic studies showed that these compounds trigger loss of cell viability and mitochondrial membrane potential, while eliciting morphological traits compatible with regulated cell death, which was ultimately shown to derive from caspase activation, specifically caspase-3. Conclusion: Chalcones 1-3 have been identified as new and promising anticancer agents toward the AGS cell line.
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9
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Bhavanarushi S, Luo Z, Bharath G, Rani J, Khan I, Xu Y, Liu B, Xie J. F(1
H
‐Pyrazol‐4‐yl)methylene‐Hydrazide derivatives: Synthesis and antimicrobial activity. J Heterocycl Chem 2019. [DOI: 10.1002/jhet.3816] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Sangepu Bhavanarushi
- School of Chemistry and Chemical EngineeringJiangsu University Zhenjiang 212013 P. R. China
| | - Zhi‐Bin Luo
- School of Chemistry and Chemical EngineeringJiangsu University Zhenjiang 212013 P. R. China
| | - Gandu Bharath
- Bioengineering and Environmental Sciences, CSIR‐Indian Institute of Chemical Technology, Tarnaka Hyderabad 500607 India
| | - JettiVatsala Rani
- Fluoroorganic Division, CSIR‐Indian Institute of Chemical Technology, Tarnaka Hyderabad 500607 India
| | - Imran Khan
- School of Chemistry and Chemical EngineeringJiangsu University Zhenjiang 212013 P. R. China
| | - Yin Xu
- School of Chemistry and Chemical EngineeringJiangsu University Zhenjiang 212013 P. R. China
| | - Bin Liu
- School of Chemistry and Chemical EngineeringJiangsu University Zhenjiang 212013 P. R. China
| | - Jimin Xie
- School of Chemistry and Chemical EngineeringJiangsu University Zhenjiang 212013 P. R. China
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10
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Synthesis and biological evaluation of new pyrazolone Schiff bases as monoamine oxidase and cholinesterase inhibitors. Bioorg Chem 2019; 84:41-50. [DOI: 10.1016/j.bioorg.2018.11.016] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 11/12/2018] [Accepted: 11/13/2018] [Indexed: 01/06/2023]
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11
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Guglielmi P, Carradori S, Poli G, Secci D, Cirilli R, Rotondi G, Chimenti P, Petzer A, Petzer JP. Design, Synthesis, Docking Studies and Monoamine Oxidase Inhibition of a Small Library of 1-acetyl- and 1-thiocarbamoyl-3,5-diphenyl-4,5-dihydro-(1H)-pyrazoles. Molecules 2019; 24:molecules24030484. [PMID: 30700029 PMCID: PMC6384781 DOI: 10.3390/molecules24030484] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Revised: 01/24/2019] [Accepted: 01/27/2019] [Indexed: 01/30/2023] Open
Abstract
New N-acetyl/N-thiocarbamoylpyrazoline derivatives were designed and synthesized in high yields to assess their inhibitory activity and selectivity against human monoamine oxidase A and B. The most important chiral compounds were separated into their single enantiomers and tested. The impact of the substituents at N1, C3 and C5 positions as well the influence of the configuration of the C5 on the biological activity were analyzed. Bulky aromatic groups at C5 were not tolerated. p-Prenyloxyaryl moiety at C3 oriented the selectivity toward the B isoform. The results were also corroborated by molecular modelling studies providing new suggestions for the synthesis of privileged structures to serve as lead compounds for the treatment of mood disorders and neurodegenerative diseases.
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Affiliation(s)
- Paolo Guglielmi
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy.
| | - Simone Carradori
- Department of Pharmacy, "G. D'Annunzio" University of Chieti-Pescara, Via dei Vestini 31, 66100 Chieti, Italy.
| | - Giulio Poli
- Department of Pharmacy, Università di Pisa, via Bonanno 6, 56126 Pisa, Italy.
| | - Daniela Secci
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy.
| | - Roberto Cirilli
- Centro nazionale per il controllo e la valutazione dei farmaci, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy.
| | - Giulia Rotondi
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy.
| | - Paola Chimenti
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy.
| | - Anél Petzer
- Pharmaceutical Chemistry, School of Pharmacy and Centre of Excellence for Pharmaceutical Sciences, North-West University, Potchefstroom 2520, South Africa.
| | - Jacobus P Petzer
- Pharmaceutical Chemistry, School of Pharmacy and Centre of Excellence for Pharmaceutical Sciences, North-West University, Potchefstroom 2520, South Africa.
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Ranganathan R, Archana S, Dinesh M, Jaabil G, Nagarajan S, Ponnuswamy A, Saranya K, Murugavel S. A Smart and Efficient One-Pot Green Synthesis of Novel 1, 2, 3-Triazolyl Pyrazoline-/Indazolyl-Carbothioamide Hybrids under Solvent-Free Grinding Strategy at Room Temperature. ChemistrySelect 2018. [DOI: 10.1002/slct.201802346] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Raja Ranganathan
- Department of Organic Chemistry; School of Chemistry; Madurai Kamaraj University; Madurai 625021 India
- Department of Chemistry; Mahendra Institute of Engineering & Technology; Namakkal 637 503 Tamilnadu India
| | - Sivasubramaniyan Archana
- Department of Organic Chemistry; School of Chemistry; Madurai Kamaraj University; Madurai 625021 India
| | - Murugan Dinesh
- Department of Organic Chemistry; School of Chemistry; Madurai Kamaraj University; Madurai 625021 India
| | - George Jaabil
- Department of Organic Chemistry; School of Chemistry; Madurai Kamaraj University; Madurai 625021 India
| | - Sangaraiah Nagarajan
- Department of Organic Chemistry; School of Chemistry; Madurai Kamaraj University; Madurai 625021 India
- Key Laboratory for Radiation Physics and Technology of Ministry of Education; Institute of Nuclear Science and Technology; Sichuan University; Chengdu China
| | - Alagusundaram Ponnuswamy
- Department of Organic Chemistry; School of Chemistry; Madurai Kamaraj University; Madurai 625021 India
| | - Kanagarajan Saranya
- Department of Physics; Thanthai Periyar Government Institute of Technology; Vellore 608 002, Tamilnadu India
| | - Saminathan Murugavel
- Department of Physics; Thanthai Periyar Government Institute of Technology; Vellore 608 002, Tamilnadu India
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Nath C, Badavath VN, Thakur A, Ucar G, Acevedo O, Mohd Siddique MU, Jayaprakash V. Curcumin-based pyrazoline analogues as selective inhibitors of human monoamine oxidase A. MEDCHEMCOMM 2018; 9:1164-1171. [PMID: 30109004 DOI: 10.1039/c8md00196k] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Accepted: 06/06/2018] [Indexed: 11/21/2022]
Abstract
A series of 2-methoxy-4-(5-phenyl-4,5-dihydro-1H-pyrazol-3-yl)phenol (pyrazoline) derivatives (2-6) have been synthesized and tested for human monoamine oxidase (hMAO) inhibitory activity. The most active derivative (2) behaved as a competitive hMAO-A inhibitor, with an inhibition constant value of 0.08 μM and a strong hMAO-A selectivity (Ki(hMAO-B)/Ki(hMAO-A) > 1751). In addition, 2 exhibited little to no cytotoxic effects up to a 25 μM concentration and provided the best blood-brain barrier permeability among the derivatives synthesized. Molecular dynamics simulations revealed that a chlorine substituent at the para-position of the phenyl ring in 2 enabled a π-π stacking interaction with Tyr407 and Tyr444 that resulted in the formation of an "aromatic sandwich" structure. Consequently, this tight-binding aromatic cage culminated in a dramatically reduced active site volume that is believed to be the origin of the observed selectivity between the hMAO-A and hMAO-B isozymes. Removal of the chlorine from 2 disrupted the favorable intermolecular interactions and resulted in a selectivity change towards hMAO-B.
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Affiliation(s)
- Chandrani Nath
- Department of Pharmaceutical Sciences & Technology , Birla Institute of Technology , Mesra , Ranchi-835 215 , Jharkhand , India . ; Tel: +91 9470137264
| | - Vishnu Nayak Badavath
- Department of Pharmaceutical Sciences & Technology , Birla Institute of Technology , Mesra , Ranchi-835 215 , Jharkhand , India . ; Tel: +91 9470137264
| | - Abhishek Thakur
- Department of Chemistry , University of Miami , Coral Gables , Florida 33146 , USA . ; Tel: +1 305 284 5662
| | - Gulberk Ucar
- Department of Biochemistry , Faculty of Pharmacy , Hacettepe University , Sıhhiye 06100 , Ankara , Turkey
| | - Orlando Acevedo
- Department of Chemistry , University of Miami , Coral Gables , Florida 33146 , USA . ; Tel: +1 305 284 5662
| | - Mohd Usman Mohd Siddique
- Department of Pharmaceutical Sciences & Technology , Birla Institute of Technology , Mesra , Ranchi-835 215 , Jharkhand , India . ; Tel: +91 9470137264
| | - Venkatesan Jayaprakash
- Department of Pharmaceutical Sciences & Technology , Birla Institute of Technology , Mesra , Ranchi-835 215 , Jharkhand , India . ; Tel: +91 9470137264
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14
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Derivatives of 4,5-dihydro (1H) pyrazoles as possible MAO-A inhibitors in depression and anxiety disorders: synthesis, biological evaluation and molecular modeling studies. Med Chem Res 2018. [DOI: 10.1007/s00044-018-2167-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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15
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Tripathi AC, Upadhyay S, Paliwal S, Saraf SK. N1-benzenesulfonyl-2-pyrazoline hybrids in neurological disorders: Syntheses, biological screening and computational studies. EXCLI JOURNAL 2018; 17:126-148. [PMID: 29743852 PMCID: PMC5938531 DOI: 10.17179/excli2017-871] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Accepted: 01/15/2018] [Indexed: 12/01/2022]
Abstract
A novel series of 1,3,5-trisubstituted-2-pyrazolines (5a-5t) was prepared via Claisen Schmidt condensation, followed by heterocyclization with hydrazine hydrate, substitution of N1 hydrogen of 2-pyrazoline nucleus with 4-chlorobenzenesulfonylchloride, applying conventional and green chemistry approaches. Among the two, microwave assisted organic synthesis (MAOS) emerged as a better synthetic tool in terms of faster reaction rate and high yield. Various physicochemical and spectral studies were conducted to characterize the synthesized derivatives including- IR, Mass, 1H-NMR, 13C-NMR and elemental analysis. During pharmacological evaluation, compound 5b showed excellent anti-anxiety activity and compound 5k exhibited the best antidepressant effect at the tested doses, 50 and 100 mg/kg b.w., being comparable to diazepam and imipramine, respectively. The docking experiments confirmed the probable mechanism of neuropharmacological action, showing excellent affinity towards MAO-A target protein, which was also evidenced from some of the key interactions with binding site residues Ala68, Tyr69 and Phe352. Furthermore, complimentary in silico pharmacokinetic recital without any potential risk of neurotoxicity (as evaluated by rotarod and actophotometer tests), or carcinogenicity, mutagenicity, reproductive toxicity, acute toxicity and irritancy (as predicted by LAZAR and OSIRIS programs) signified their probable use in depression and anxiety disorders.
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Affiliation(s)
- Avinash C Tripathi
- Division of Pharmaceutical Chemistry, Faculty of Pharmacy, Babu Banarasi Das Northern India Institute of Technology, Lucknow-226028, U.P., India
| | - Savita Upadhyay
- Division of Pharmaceutical Chemistry, Faculty of Pharmacy, Babu Banarasi Das Northern India Institute of Technology, Lucknow-226028, U.P., India
| | - Sarvesh Paliwal
- Professor and Head, Department of Pharmacy, Banasthali Vidyapith, Banasthali, Tonk-304022, Rajasthan, India
| | - Shailendra K Saraf
- Division of Pharmaceutical Chemistry, Faculty of Pharmacy, Babu Banarasi Das Northern India Institute of Technology, Lucknow-226028, U.P., India
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Tripathi AC, Upadhyay S, Paliwal S, Saraf SK. Privileged scaffolds as MAO inhibitors: Retrospect and prospects. Eur J Med Chem 2018; 145:445-497. [PMID: 29335210 DOI: 10.1016/j.ejmech.2018.01.003] [Citation(s) in RCA: 99] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Revised: 12/01/2017] [Accepted: 01/01/2018] [Indexed: 12/24/2022]
Abstract
This review aims to be a comprehensive, authoritative, critical, and readable review of general interest to the medicinal chemistry community because it focuses on the pharmacological, chemical, structural and computational aspects of diverse chemical categories as monoamine oxidase inhibitors (MAOIs). Monoamine oxidases (MAOs), namely MAO-A and MAO-B represent an enormously valuable class of neuronal enzymes embodying neurobiological origin and functions, serving as potential therapeutic target in neuronal pharmacotherapy, and hence we have coined the term "Neurozymes" which is being introduced for the first time ever. Nowadays, therapeutic attention on MAOIs engrosses two imperative categories; MAO-A inhibitors, in certain mental disorders such as depression and anxiety, and MAO-B inhibitors, in neurodegenerative disorders like Alzheimer's disease (AD) and Parkinson's disease (PD). The use of MAOIs declined due to some potential side effects, food and drug interactions, and introduction of other classes of drugs. However, curiosity in MAOIs is reviving and the recent developments of new generation of highly selective and reversible MAOIs, have renewed the therapeutic prospective of these compounds. The initial section of the review emphasizes on the detailed classification, structural and binding characteristics, therapeutic potential, current status and future challenges of the privileged pharmacophores. However, the chemical prospective of privileged scaffolds such as; aliphatic and aromatic amines, amides, hydrazines, azoles, diazoles, tetrazoles, indoles, azines, diazines, xanthenes, tricyclics, benzopyrones, and more interestingly natural products, along with their conclusive SARs have been discussed in the later segment of review. The last segment of the article encompasses some patents granted in the field of MAOIs, in a simplistic way.
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Affiliation(s)
- Avinash C Tripathi
- Division of Pharmaceutical Chemistry, Faculty of Pharmacy, Babu Banarasi Das Northern India Institute of Technology, Lucknow 226028, UP, India
| | - Savita Upadhyay
- Division of Pharmaceutical Chemistry, Faculty of Pharmacy, Babu Banarasi Das Northern India Institute of Technology, Lucknow 226028, UP, India
| | - Sarvesh Paliwal
- Pharmacy Department, Banasthali Vidyapith, Banasthali, Tonk 304022, Rajasthan, India
| | - Shailendra K Saraf
- Division of Pharmaceutical Chemistry, Faculty of Pharmacy, Babu Banarasi Das Northern India Institute of Technology, Lucknow 226028, UP, India.
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Koh D, Shin SY, Sung J, Ahn S, Lim Y. 1 H and 13 C NMR spectral assignments for 24 novel naphthalenylphenylpyrazolines. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2017; 55:856-863. [PMID: 28455848 DOI: 10.1002/mrc.4603] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Revised: 04/25/2017] [Accepted: 04/26/2017] [Indexed: 06/07/2023]
Affiliation(s)
- Dongsoo Koh
- Department of Applied Chemistry, Dongduk Women's University, Seoul, 02748, Korea
| | - Soon Young Shin
- Department of Biological Sciences, Konkuk University, Seoul, 05029, Korea
| | - Jiha Sung
- Department of Applied Chemistry, Dongduk Women's University, Seoul, 02748, Korea
| | - Seunghyun Ahn
- Division of Bioscience and Biotechnology, BMIC, Konkuk University, Seoul, 05029, Korea
| | - Yoongho Lim
- Division of Bioscience and Biotechnology, BMIC, Konkuk University, Seoul, 05029, Korea
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18
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Tabassum S, Govindaraju S, Pasha MA. FeSO4
⋅7H2
O Catalyzed Rapid and Efficient One-Pot Multicomponent Synthesis of Functionalized Pyrazol-yl-pyrazolone Methanes. ChemistrySelect 2017. [DOI: 10.1002/slct.201700602] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Sumaiya Tabassum
- Department of Studies in Chemistry; Central College Campus; Bangalore University; Palace Road Bengaluru- 560 001 India
| | - Santhosh Govindaraju
- Department of Studies in Chemistry; Central College Campus; Bangalore University; Palace Road Bengaluru- 560 001 India
| | - Mohamed Afzal Pasha
- Department of Studies in Chemistry; Central College Campus; Bangalore University; Palace Road Bengaluru- 560 001 India
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19
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Korablina DD, Vorozhtsov NI, Sviridova LA, Kalenikova EI, Medvedev OS. Pharmacological Activity of 4,5-Dihydropyrazole Derivatives (Review). Pharm Chem J 2016. [DOI: 10.1007/s11094-016-1438-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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20
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Ahmad P, Woo H, Jun KY, Kadi AA, Abdel-Aziz HA, Kwon Y, Rahman AFMM. Design, synthesis, topoisomerase I & II inhibitory activity, antiproliferative activity, and structure-activity relationship study of pyrazoline derivatives: An ATP-competitive human topoisomerase IIα catalytic inhibitor. Bioorg Med Chem 2016; 24:1898-908. [PMID: 26988802 DOI: 10.1016/j.bmc.2016.03.017] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Revised: 03/07/2016] [Accepted: 03/08/2016] [Indexed: 12/11/2022]
Abstract
A series of pyrazoline derivatives (5) were synthesized in 92-96% yields from chalcones (3) and hydrazides (4). Subsequently, topo-I and IIα-mediated relaxation and antiproliferative activity assays were evaluated for 5. Among the tested compounds, 5h had a very strong topo-I activity of 97% (Camptothecin, 74%) at concentration of 100 μM. Nevertheless, all the compounds 5a-5i showed significant topo II inhibitory activity in the range of 90-94% (Etoposide, 96%) at the same concentration. Cytotoxic potential of these compounds was tested in a panel of three human tumor cell lines, HCT15, BT474 and T47D. All the compounds showed strong activity against HCT15 cell line with IC50 at the range of 1.9-10.4 μM (Adriamycin, 23.0; Etoposide, 6.9; and Camptothecin, 7.1 μM). Moreover, compounds 5c, 5f and 5i were observed to have strong antiproliferative activity against BT474 cell lines. Since, compound 5d showed antiproliferative activity at a very low IC50 thus 5d was then selected to study on their mode of action with diverse methods of ATP competition assay, ATPase assay and DNA-topo IIα cleavable complex assay and the results revealed that it functioned as a ATP-competitive human topoisomerase IIα catalytic inhibitor. Further evaluation of endogenous topo-mediated DNA relaxation in cells has been conducted to find that, 5d inhibited endogenous topo-mediated pBR322 plasmid relaxation is more efficient (78.0 ± 4.7% at 50 μM) than Etoposide (36.0 ± 1.7% at 50 μM).
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Affiliation(s)
- Pervez Ahmad
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Hyunjung Woo
- College of Pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul 120-750, Republic of Korea
| | - Kyu-Yeon Jun
- College of Pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul 120-750, Republic of Korea
| | - Adnan A Kadi
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Hatem A Abdel-Aziz
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia; Department of Applied Organic Chemistry Department, National Research Center, Dokki, Cairo 12622, Egypt
| | - Youngjoo Kwon
- College of Pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul 120-750, Republic of Korea.
| | - A F M Motiur Rahman
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia.
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21
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Basu M, Mayana K, Xavier S, Balachandran S, Mishra N. Effect of scopoletin on monoamine oxidases and brain amines. Neurochem Int 2016; 93:113-7. [DOI: 10.1016/j.neuint.2016.01.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2015] [Revised: 12/13/2015] [Accepted: 01/16/2016] [Indexed: 10/22/2022]
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22
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Badavath VN, Baysal İ, Ucar G, Sinha BN, Jayaprakash V. Monoamine Oxidase Inhibitory Activity of Novel Pyrazoline Analogues: Curcumin Based Design and Synthesis. ACS Med Chem Lett 2016; 7:56-61. [PMID: 26819666 DOI: 10.1021/acsmedchemlett.5b00326] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Accepted: 12/01/2015] [Indexed: 01/03/2023] Open
Abstract
A series of new 2-methoxy-4-(5-phenyl-4,5-dihydro-1H-pyrazol-3-yl)phenolderivatives, 4-13, were synthesized and tested for their human MAO inhibitory activity. All the compounds were found to be selective and reversible toward hMAO-A except 4, a selective inhibitor of hMAO-B and 12, a nonselective inhibitor. Compound 7 was found to be a potent inhibitor of hMAO-A with Ki = 0.06 ± 0.003 μM and was having selectivity index of (SI = 1.02 × 10(-5)). It was found to be better than standard drug, Moclobemide (hMAO-A with Ki = 0.11 ± 0.01 μM) with selectivity index of SI = 0.049. Molecular docking simulation was carried out to understand the crucial interactions responsible for selectivity and potency.
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Affiliation(s)
- Vishnu Nayak Badavath
- Department
of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi, Jharkhand 835 215, India
| | - İpek Baysal
- Department
of Biochemistry, Faculty of Pharmacy, Hacettepe University, Sıhhiye, 06100, Ankara, Turkey
| | - Gulberk Ucar
- Department
of Biochemistry, Faculty of Pharmacy, Hacettepe University, Sıhhiye, 06100, Ankara, Turkey
| | - Barij Nayan Sinha
- Department
of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi, Jharkhand 835 215, India
| | - Venkatesan Jayaprakash
- Department
of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi, Jharkhand 835 215, India
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Tripathi AC, Upadhyay S, Paliwal S, Saraf SK. An expeditious one-pot microwave facilitated versus conventional syntheses: in vivo biological screening and molecular docking studies of some 3,5-disubstituted-4,5-dihydro-(1H)-pyrazole derivatives. Med Chem Res 2016. [DOI: 10.1007/s00044-015-1489-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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24
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Badavath VN, Baysal İ, Uçar G, Mondal SK, Sinha BN, Jayaprakash V. Monoamine Oxidase Inhibitory Activity of Ferulic Acid Amides: Curcumin-Based Design and Synthesis. Arch Pharm (Weinheim) 2015; 349:9-19. [PMID: 26592858 DOI: 10.1002/ardp.201500317] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Revised: 10/27/2015] [Accepted: 10/30/2015] [Indexed: 11/11/2022]
Abstract
Ferulic acid has structural similarity with curcumin which is being reported for its monoamine oxidase (MAO) inhibitory activity. Based on this similarity, we designed a series of ferulic acid amides 6a-m and tested for their inhibitory activity on human MAO (hMAO) isoforms. All the compounds were found to inhibit the hMAO isoforms either selectively or non-selectively. Nine compounds (6a, 6b, 6g-m) were found to inhibit hMAO-B selectively, whereas the other four (6c-f) were found to be non-selective. There is a gradual shift from hMAO-B selectivity (6a,b) to non-selectivity (6c-f) as there is an increase in chain length at the amino terminus. In case of compounds having an aromatic nucleus at the amino terminus, increasing the carbon number between N and the aromatic ring increases the potency as well as selectivity toward hMAO-B. Compounds 6f, 6j, and 6k were subjected to membrane permeability and metabolic stability studies by in vitro assay methods. They were found to have a better pharmacokinetic profile than curcumin, ferulic acid, and selegiline. In order to understand the structural features responsible for the potency and selectivity of 6k, we carried out a molecular docking simulation study.
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Affiliation(s)
- Vishnu N Badavath
- Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi, Jharkhand, India
| | - İpek Baysal
- Department of Biochemistry, Faculty of Pharmacy, Hacettepe University, Sıhhiye, Ankara, Turkey
| | - Gülberk Uçar
- Department of Biochemistry, Faculty of Pharmacy, Hacettepe University, Sıhhiye, Ankara, Turkey
| | - Susanta K Mondal
- TCG Lifesciences Ltd, Block-EP&GP, BIPL, Tower-B, Saltlake, Sector-V, Kolkata, West Bengal, India
| | - Barij N Sinha
- Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi, Jharkhand, India
| | - Venkatesan Jayaprakash
- Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi, Jharkhand, India
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25
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Tong X, Chen R, Zhang TT, Han Y, Tang WJ, Liu XH. Design and synthesis of novel 2-pyrazoline-1-ethanone derivatives as selective MAO inhibitors. Bioorg Med Chem 2014; 23:515-25. [PMID: 25541201 DOI: 10.1016/j.bmc.2014.12.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Revised: 12/02/2014] [Accepted: 12/07/2014] [Indexed: 11/17/2022]
Abstract
Thirty seven novel 2-pyrazoline-1-ethanone derivatives were designed, synthesized and evaluated as selective hMAO inhibitors. Among them, compounds 7h (IC50=2.40 μM) and 12c (IC50=2.00 μM) exhibited best inhibitory activity and selectivity against hMAO-A, surpassing that of the positive control Clorgyline (IC50=2.76 μM). Based on selective activity of hMAO-A, SAR analysis showed that the order of N1 substituent contribution was bromo (3)>piperidinyl (4)>morpholinyl (5)>imidazolyl (6), and compounds with electron-withdrawing substituents (-F, -Cl) at C3 or C5 phenyl ring of 2-pyrazoline nucleus dedicated stronger MAO-A inhibitory activity. Molecular docking showed that compounds 7h and 12c were nicely bound to hMAO-A via two hydrogen bonds (SER209, GLU216), one Pi-Pi interaction and three hydrogen bonds (SER209, GLU216, TYR69), one Sigma-Pi interaction, respectively. In addition, the substituent at C3 position of 2-pyrazoline with the N1 acetyl has little effect on MAO-A inhibitory activity. These data support further studies to assess rational design of more efficiently selective hMAO inhibitors in the future.
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Affiliation(s)
- Xu Tong
- School of Pharmacy, Anhui Medical University, Hefei 230032, PR China
| | - Rui Chen
- School of Pharmacy, Anhui Medical University, Hefei 230032, PR China
| | - Tong-Tian Zhang
- School of Pharmacy, Anhui Medical University, Hefei 230032, PR China
| | - Yan Han
- School of Pharmacy, Anhui Medical University, Hefei 230032, PR China
| | - Wen-Jian Tang
- School of Pharmacy, Anhui Medical University, Hefei 230032, PR China.
| | - Xin-Hua Liu
- School of Pharmacy, Anhui Medical University, Hefei 230032, PR China; State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, PR China.
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26
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Patil PO, Bari SB. Nitrogen heterocycles as potential monoamine oxidase inhibitors: Synthetic aspects. ARAB J CHEM 2014. [DOI: 10.1016/j.arabjc.2012.12.034] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
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27
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Proposed interaction of some novel antidepressant pyrazolines against monoamine oxidase isoforms. Molecular docking studies and PASS assisted in silico approach. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.biomag.2014.07.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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28
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Passos CDS, Simoes-Pires C, Henriques A, Cuendet M, Carrupt PA, Christen P. Alkaloids as Inhibitors of Monoamine Oxidases and Their Role in the Central Nervous System. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/b978-0-444-63430-6.00004-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
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29
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Vishnu Nayak B, Ciftci-Yabanoglu S, Jadav SS, Jagrat M, Sinha BN, Ucar G, Jayaprakash V. Monoamine oxidase inhibitory activity of 3,5-biaryl-4,5-dihydro-1H-pyrazole-1-carboxylate derivatives. Eur J Med Chem 2013; 69:762-7. [PMID: 24099995 DOI: 10.1016/j.ejmech.2013.09.010] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2013] [Revised: 09/03/2013] [Accepted: 09/05/2013] [Indexed: 12/26/2022]
Abstract
Ethyl and phenyl carbamate derivatives of pyrazoline (3a-3h) were synthesized and tested for their MAO inhibitory activity. All the compounds were found to be selective towards MAO-A. Phenyl carbamates (3e-3h) were better than ethyl carbamates (3a-3d) and displayed the best selectivity index. Compound 3f (KiMAO-A; 4.96 ± 0.21 nM) was found to be equally potent as that of standard drug, Moclobemide (KiMAO-A; 5.01 ± 0.13 nM) but with best selectivity index (8.86 × 10(-5)). Molecular docking studies with R &S conformer of 3f revealed S-enantiomer is better than R-enantiomer as reported earlier by other groups. It is proposed that VdW's radii of the substitution (bulkiness) in ring B determine the potency of phenyl carbamates.
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Affiliation(s)
- B Vishnu Nayak
- Department of Pharmaceutical Sciences, Birla Institute of Technology, Mesra, Ranchi, Jharkhand 835 215, India
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Bhavanarushi S, Kanakaiah V, Bharath G, Gangagnirao A, Vatsala Rani J. Synthesis and antibacterial activity of 4,4′-(aryl or alkyl methylene)-bis(1H-pyrazol-5-ol) derivatives. Med Chem Res 2013. [DOI: 10.1007/s00044-013-0623-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Tautomeric origin of dual effects of N1-nicotinoyl-3-(4′-hydroxy-3′-methyl phenyl)-5-[(sub)phenyl]-2-pyrazolines on bacterial and viral strains: POM analyses as new efficient bioinformatics’ platform to predict and optimize bioactivity of drugs. Med Chem Res 2012. [DOI: 10.1007/s00044-012-0143-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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32
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Mahé O, Dez I, Levacher V, Brière JF. Enantioselective synthesis of bio-relevant 3,5-diaryl pyrazolines. Org Biomol Chem 2012; 10:3946-54. [DOI: 10.1039/c2ob25227a] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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