1
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Kumar G, C A. Natural products and their analogues acting against Mycobacterium tuberculosis: A recent update. Drug Dev Res 2023; 84:779-804. [PMID: 37086027 DOI: 10.1002/ddr.22063] [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: 11/25/2022] [Revised: 02/28/2023] [Accepted: 04/01/2023] [Indexed: 04/23/2023]
Abstract
Tuberculosis (TB) remains one of the deadliest infectious diseases caused by Mycobacterium tuberculosis (M.tb). It is responsible for significant causes of mortality and morbidity worldwide. M.tb possesses robust defense mechanisms against most antibiotic drugs and host responses due to their complex cell membranes with unique lipid molecules. Thus, the efficacy of existing front-line drugs is diminishing, and new and recurring cases of TB arising from multidrug-resistant M.tb are increasing. TB begs the scientific community to explore novel therapeutic avenues. A precise knowledge of the compounds with their mode of action could aid in developing new anti-TB agents that can kill latent and actively multiplying M.tb. This can help in the shortening of the anti-TB regimen and can improve the outcome of treatment strategies. Natural products have contributed several antibiotics for TB treatment. The sources of anti-TB drugs/inhibitors discussed in this work are target-based identification/cell-based and phenotypic screening from natural products. Some of the recently identified natural products derived leads have reached clinical stages of TB drug development, which include rifapentine, CPZEN-45, spectinamide-1599 and 1810. We believe these anti-TB agents could emerge as superior therapeutic compounds to treat TB over known Food and Drug Administration drugs.
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Affiliation(s)
- Gautam Kumar
- Department of Natural Products, Chemical Sciences, National Institute of Pharmaceutical Education and Research-Hyderabad, Hyderabad, Telangana, India
| | - Amrutha C
- Department of Natural Products, Chemical Sciences, National Institute of Pharmaceutical Education and Research-Hyderabad, Hyderabad, Telangana, India
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2
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Jagatap V, Ahmad I, Sriram D, Kumari J, Adu DK, Ike BW, Ghai M, Ansari SA, Ansari IA, Wetchoua PO, Karpoormath R, Patel H. Isoflavonoid and Furanochromone Natural Products as Potential DNA Gyrase Inhibitors: Computational, Spectral, and Antimycobacterial Studies. ACS OMEGA 2023; 8:16228-16240. [PMID: 37179626 PMCID: PMC10173323 DOI: 10.1021/acsomega.3c00684] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 04/18/2023] [Indexed: 05/15/2023]
Abstract
In pursuit of new antitubercular agents, we here report the antimycobacterial (H37Rv) and DNA gyrase inhibitory potential of daidzein and khellin natural products (NPs). We procured a total of 16 NPs based on their pharmacophoric similarities with known antimycobacterial compounds. The H37Rv strain of M. tuberculosis was found to be susceptible to only two out of the 16 NPs procured; specifically, daidzein and khellin each exhibited an MIC of 25 μg/mL. Moreover, daidzein and khellin inhibited the DNA gyrase enzyme with IC50 values of 0.042 and 0.822 μg/mL, respectively, compared to ciprofloxacin with an IC50 value of 0.018 μg/mL. Daidzein and khellin were found to have lower toxicity toward the vero cell line, with IC50 values of 160.81 and 300.23 μg/mL, respectively. Further, molecular docking study and MD simulation of daidzein indicated that it remained stable inside the cavity of DNA GyrB domain for 100 ns.
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Affiliation(s)
- Vilas
R. Jagatap
- Division
of Computer-Aided Drug Design, Department of Pharmaceutical Chemistry, R. C. Patel Institute of Pharmaceutical Education
and Research, Shirpur District, Dhule 425405, Maharashtra, India
| | - Iqrar Ahmad
- Division
of Computer-Aided Drug Design, Department of Pharmaceutical Chemistry, R. C. Patel Institute of Pharmaceutical Education
and Research, Shirpur District, Dhule 425405, Maharashtra, India
| | - Dharmarajan Sriram
- Department
of Pharmacy, Birla Institute of Technology
and Science-Pilani, Hyderabad Campus, Jawahar Nagar, Shameerpet Mandal, R. R. District, Hyderabad 500078, India
| | - Jyothi Kumari
- Department
of Pharmacy, Birla Institute of Technology
and Science-Pilani, Hyderabad Campus, Jawahar Nagar, Shameerpet Mandal, R. R. District, Hyderabad 500078, India
| | - Darko Kwabena Adu
- Department
of Pharmaceutical Chemistry, Discipline of Pharmaceutical Sciences,
College of Health Sciences, University of
KwaZulu-Natal (Westville), Durban 4000, South Africa
| | - Blessing Wisdom Ike
- Department
of Pharmaceutical Chemistry, Discipline of Pharmaceutical Sciences,
College of Health Sciences, University of
KwaZulu-Natal (Westville), Durban 4000, South Africa
| | - Meenu Ghai
- Discipline
of Genetics, School of Life Sciences, University
of KwaZulu-Natal, Westville, Durban 4000, South Africa
| | - Siddique Akber Ansari
- Department
of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Irfan Aamer Ansari
- Department
of Drug Science and Technology, University
of Turin, Turin 10124, Italy
| | - Priscille Ornella
Mefotso Wetchoua
- Department
of Pharmaceutical Chemistry, Discipline of Pharmaceutical Sciences,
College of Health Sciences, University of
KwaZulu-Natal (Westville), Durban 4000, South Africa
| | - Rajshekhar Karpoormath
- Department
of Pharmaceutical Chemistry, Discipline of Pharmaceutical Sciences,
College of Health Sciences, University of
KwaZulu-Natal (Westville), Durban 4000, South Africa
| | - Harun Patel
- Division
of Computer-Aided Drug Design, Department of Pharmaceutical Chemistry, R. C. Patel Institute of Pharmaceutical Education
and Research, Shirpur District, Dhule 425405, Maharashtra, India
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3
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Radical-Induced Cascade Annulation/Hydrocarbonylation for Construction of 2-Aryl-4H-chromen-4-ones. Molecules 2022; 27:molecules27217412. [DOI: 10.3390/molecules27217412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 10/22/2022] [Accepted: 10/26/2022] [Indexed: 11/06/2022] Open
Abstract
A robust metal- and solvent-free cascade radical-induced C-N cleavage/intramolecular 6-endo-dig annulation/hydrocarbonylation for the synthesis of the valuable 2-aryl-4H-chromen-4-ones is described. This practical synthesis strategy utilizes propargylamines and air as the oxygen source and green carbonylation reagent, in which propargylamines are activated by the inexpensive and available dimethyl 2,2′-azobis(2-methylpropionate) (AIBME) and (PhSe)2 as the radical initiators. This simple and green protocol features wide substrate adaptability, good functional group tolerance, and amenability to scaling up and derivatizations.
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4
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Li X, Li Y, Yang J, Shi H, Ai Z, Han C, He J, Du Y. Synthesis of 3-SCF 2H-/3-SCF 3-chromones via Interrupted Pummerer Reaction/Intramolecular Cyclization Mediated by Difluoromethyl or Trifluoromethyl Sulfoxide and Tf 2O. Org Lett 2022; 24:7216-7221. [PMID: 36148991 DOI: 10.1021/acs.orglett.2c03017] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The reaction of alkynyl aryl ketones bearing an o-methoxy group with difluoromethyl sulfoxide in the presence of Tf2O was found to conveniently afford the corresponding 3-SCF2H-substituted chromones. The combining use of difluoromethyl sulfoxide/Tf2O could represent the first reagents system that can introduce the biologically important SCF2H moiety under base-free conditions via an interrupted Pummerer reaction. The same protocol could also be applied to the synthesis of 3-SCF3-substituted chromones by replacing difluoromethyl sulfoxide with trifluoromethyl sulfoxide and CH3CN with toluene.
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Affiliation(s)
- Xuemin Li
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Yue Li
- State Key Laboratory of Metastable Materials Science and Technology, Hebei Key Laboratory of Nano-biotechnology, Yanshan University, Qinhuangdao 066004, P.R. China
| | - Jingyue Yang
- State Key Laboratory of Metastable Materials Science and Technology, Hebei Key Laboratory of Nano-biotechnology, Yanshan University, Qinhuangdao 066004, P.R. China
| | - Haofeng Shi
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Zhenkang Ai
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Chi Han
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Jiaxin He
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Yunfei Du
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
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5
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Promising Antimycobacterial Activities of Flavonoids against Mycobacterium sp. Drug Targets: A Comprehensive Review. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27165335. [PMID: 36014572 PMCID: PMC9415813 DOI: 10.3390/molecules27165335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Revised: 08/03/2022] [Accepted: 08/09/2022] [Indexed: 11/17/2022]
Abstract
Tuberculosis (TB) caused by the bacterial pathogen Mycobacterium tuberculosis (Mtb) remains a threat to mankind, with over a billion of deaths in the last two centuries. Recent advancements in science have contributed to an understanding of Mtb pathogenesis and developed effective control tools, including effective drugs to control the global pandemic. However, the emergence of drug resistant Mtb strains has seriously affected the TB eradication program around the world. There is, therefore, an urgent need to develop new drugs for TB treatment, which has grown researchers’ interest in small molecule-based drug designing and development. The small molecules-based treatments hold significant potential to overcome drug resistance and even provide opportunities for multimodal therapy. In this context, various natural and synthetic flavonoids were reported for the effective treatment of TB. In this review, we have summarized the recent advancement in the understanding of Mtb pathogenesis and the importance of both natural and synthetic flavonoids against Mtb infection studied using in vitro and in silico methods. We have also included flavonoids that are able to inhibit the growth of non-tubercular mycobacterial organisms. Hence, understanding the therapeutic properties of flavonoids can be useful for the future treatment of TB.
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6
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Aromatic Polyketides from the Deep-Sea Cold-Seep Mussel Associated Endozoic Fungus Talaromyces minioluteus CS-138. Mar Drugs 2022; 20:md20080529. [PMID: 36005532 PMCID: PMC9409973 DOI: 10.3390/md20080529] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 08/15/2022] [Accepted: 08/16/2022] [Indexed: 11/17/2022] Open
Abstract
Five new aromatic polyketides, including a unique benzofuran derivative, talarominine A (1), and four chromone analogs talamins A–D (2–5), along with one known related metabolite, 5-hydroxy-7-methoxy-2,3-dimethylchromone (6), were isolated and identified from the Talaromyces minioluteus CS-138, an endozoic fungus obtained from the deep-sea cold seep mussel Gigantidas platifrons. Their chemical structures were elucidated by detailed analysis of their NMR spectra, HRESIMS and X-ray crystallographic data, and by comparison with literature data as well. The antibacterial and DPPH scavenging activities of compounds 1–6 were evaluated. Compounds 1–3 showed inhibitory activity against some of the tested bacteria whereas compounds 2 and 5 showed potent DPPH radical scavenging activities, which were better than that of the positive control butylated hydroxytoluene (BHT). This work is likely the first report on marine natural products of mussel-derived fungus living in cold seep environments.
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7
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Lai JR, Yin FD, Guo QS, Yuan F, Nian BF, Zhang M, Wu ZB, Zhang HB, Tang E. Silver-catalysed three-component reactions of alkynyl aryl ketones, element selenium, and boronic acids leading to 3-organoselenylchromones. Org Biomol Chem 2022; 20:5104-5114. [PMID: 35703142 DOI: 10.1039/d2ob00696k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An Ag-catalysed three-component reaction of alkynyl aryl ketones bearing an ortho-methoxy group, element selenium, and arylboronic acid, providing a facile route to selenofunctionalized chromone products has been developed. This protocol features high efficiency and high regioselectivity, and the use of selenium powder as the selenium source. Mechanistic experiments indicated that the combined oxidative effect of (bis(trifluoroacetoxy)iodo)benzene and oxygen in the air pushes the catalytic redox cycle of the Ag catalyst and the phenylselenium trifluoroacetate formed in situ is the key intermediate of the PIFA-mediated 6-endo-electrophilic cyclization and selenofunctionalization reaction of alkynyl aryl ketones.
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Affiliation(s)
- Jin-Rong Lai
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China.
| | - Fu-Dan Yin
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China.
| | - Qing-Song Guo
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China.
| | - Fei Yuan
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China.
| | - Bei-Fang Nian
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China.
| | - Ming Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China.
| | - Zhi-Bang Wu
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China.
| | - Hong-Bin Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China.
| | - E Tang
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China.
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8
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Kamboj S, Singh R. Chromanone-A Prerogative Therapeutic Scaffold: An Overview. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2022; 47:75-111. [PMID: 34226859 PMCID: PMC8244469 DOI: 10.1007/s13369-021-05858-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 06/09/2021] [Indexed: 02/06/2023]
Abstract
Chromanone or Chroman-4-one is the most important and interesting heterobicyclic compound and acts as a building block in medicinal chemistry for isolation, designing and synthesis of novel lead compounds. Structurally, absence of a double bond in chromanone between C-2 and C-3 shows a minor difference from chromone but exhibits significant variations in biological activities. In the present review, various studies published on synthesis, pharmacological evaluation on chroman-4-one analogues are addressed to signify the importance of chromanone as a versatile scaffold exhibiting a wide range of pharmacological activities. But, due to poor yield in the case of chemical synthesis and expensive isolation procedure from natural compounds, more studies are required to provide the most effective and cost-effective methods to synthesize novel chromanone analogs to give leads to chemistry community. Considering the versatility of chromanone, this review is designed to impart comprehensive, critical and authoritative information about chromanone template in drug designing and development.
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Affiliation(s)
- Sonia Kamboj
- Maharishi Markandeshwar College of Pharmacy, Maharishi Markandeshwar (Deemed to be University), Mullana, Haryana 133203 India ,Ch. Devi Lal College of Pharmacy, Jagadhri, Haryana 135003 India
| | - Randhir Singh
- Maharishi Markandeshwar College of Pharmacy, Maharishi Markandeshwar (Deemed to be University), Mullana, Haryana 133203 India
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9
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Chemical Components of Selaginella trichoclada. Chem Nat Compd 2021. [DOI: 10.1007/s10600-021-03320-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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10
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Long X, Meng F, Qu S, Ji H, Lan X, Chen M. Himalaflavone A-E, five new flavonoids from Oxybaphus himalaicus. Nat Prod Res 2020; 36:150-156. [PMID: 32476473 DOI: 10.1080/14786419.2020.1771705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Five previously undescribed flavonoids (1-5) and ten known ones (6-15) were isolated from the roots of Oxybaphus himalaicus. Their structures were elucidated by spectroscopic experiments including NMR, HRESIMS and ECD. The cytotoxic activities of all isolated compounds were assayed against human lung carcinoma A549 cells and human hepatocellular carcinoma HepG2 cells in vitro. Compound 11 displayed the most powerful inhibitory effect with IC50 values of 19.47 ± 0.28 μM against A549 and 52.6 ± 0.38 μM against HepG2, respectively.
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Affiliation(s)
- Xuanning Long
- Key Laboratory on Luminescence and Real-Time Analytical Chemistry (Ministry of Education), College of Pharmaceutical Sciences, Southwest University, Chongqing, P.R. China
| | - Fancheng Meng
- Key Laboratory on Luminescence and Real-Time Analytical Chemistry (Ministry of Education), College of Pharmaceutical Sciences, Southwest University, Chongqing, P.R. China
| | - Shenyue Qu
- Key Laboratory on Luminescence and Real-Time Analytical Chemistry (Ministry of Education), College of Pharmaceutical Sciences, Southwest University, Chongqing, P.R. China
| | - Hali Ji
- TAAHC SWU Medicinal Plant R&D Center, XiZang Agriculture and Animal Husbandry College, Nyingchi, P.R. China
| | - Xiaozhong Lan
- TAAHC SWU Medicinal Plant R&D Center, XiZang Agriculture and Animal Husbandry College, Nyingchi, P.R. China
| | - Min Chen
- Key Laboratory on Luminescence and Real-Time Analytical Chemistry (Ministry of Education), College of Pharmaceutical Sciences, Southwest University, Chongqing, P.R. China
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11
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Ai Z, Xiao J, Li Y, Guo B, Du Y, Zhao K. Metal-free synthesis of 3-chalcogenyl chromones from alkynyl aryl ketones and diorganyl diselenides/disulfides mediated by PIFA. Org Chem Front 2020. [DOI: 10.1039/d0qo01175d] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
3-Selenyl/sulfenyl chromones/thiochromones were conveniently synthesized from the PIFA-mediated reactions between alkynyl aryl ketones bearing an ortho-methoxy/methylthio group and diorganyl diselenides/disulfides.
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Affiliation(s)
- Zhenkang Ai
- School of Pharmaceutical Science and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Jiaxi Xiao
- School of Pharmaceutical Science and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Yadong Li
- School of Pharmaceutical Science and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Boying Guo
- Department of Chemistry
- Monell Chemical Senses Center and Laboratory for Research on the Structure of Matter
- University of Pennsylvania
- Philadelphia
- USA
| | - Yunfei Du
- School of Pharmaceutical Science and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Kang Zhao
- State Key Laboratory of Microbial Technology
- Institute of Microbial Technology
- Shandong University
- Qingdao 266237
- China
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12
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Chen B, Han J, Wang M, Dai H, Zhang J, Cai L, Wei S, Zhang X, Liu H. Amplisins A–E, chromone methide polymers with hypoglycemic activity from a new fungicolous fungus Amplistroma fungicola. Org Chem Front 2020. [DOI: 10.1039/d0qo00851f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Five new non-enzymatic 1,4-Michael addition of chromone methide polymers, (±)-amplisins A–D (1–4) and amplisin E (5), with hypoglycemic and anti-inflammatory activities, were isolated from a new fungicolous fungus Amplistroma fungicola.
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Affiliation(s)
- Baosong Chen
- State Key Laboratory of Mycology
- Institute of Microbiology
- Chinese Academy of Sciences
- Beijing
- People's Republic of China
| | - Junjie Han
- State Key Laboratory of Mycology
- Institute of Microbiology
- Chinese Academy of Sciences
- Beijing
- People's Republic of China
| | - Mengmeng Wang
- State Key Laboratory of Mycology
- Institute of Microbiology
- Chinese Academy of Sciences
- Beijing
- People's Republic of China
| | - Huanqin Dai
- State Key Laboratory of Mycology
- Institute of Microbiology
- Chinese Academy of Sciences
- Beijing
- People's Republic of China
| | - Jinjin Zhang
- State Key Laboratory of Mycology
- Institute of Microbiology
- Chinese Academy of Sciences
- Beijing
- People's Republic of China
| | - Lei Cai
- State Key Laboratory of Mycology
- Institute of Microbiology
- Chinese Academy of Sciences
- Beijing
- People's Republic of China
| | - Shenglong Wei
- Gansu Engineering Laboratory of Applied Mycology
- Hexi University
- Zhangye
- People's Republic of China
| | - Xue Zhang
- Key Laboratory of Structure-Based Drug Design & Discovery
- Ministry of Education
- Shenyang Pharmaceutical University
- Shenyang
- People's Republic of China
| | - Hongwei Liu
- State Key Laboratory of Mycology
- Institute of Microbiology
- Chinese Academy of Sciences
- Beijing
- People's Republic of China
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13
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Gaikwad N, Nanduri S, Madhavi YV. Cinnamamide: An insight into the pharmacological advances and structure-activity relationships. Eur J Med Chem 2019; 181:111561. [PMID: 31376564 DOI: 10.1016/j.ejmech.2019.07.064] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 07/11/2019] [Accepted: 07/23/2019] [Indexed: 01/07/2023]
Abstract
The cinnamamide (cinnamic acid amide and cinnamide) is a privileged scaffold present widely in a number of natural products. The scaffold acts as a useful template for designing and arriving at newly drug-like molecules with potential pharmacological activity. An attempt has been made to review the extensive occurrence of cinnamamide scaffold in many lead compounds reported for treating various diseases, their binding interactions with the therapeutic targets as well as mechanism of action and their structure-activity relationships. The discoveries of cinnamamide systems and some examples of unusual cinnamamides having an aromatic, aliphatic, and heterocyclic or other rings condensed to the basic cinnamamide structure also have been extensively covered in this review.
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Affiliation(s)
- Nikhil Gaikwad
- Department of Pharmaceutical Technology and Process Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), 40, Dilip Rd, Jinkalwada, Balanagar, Hyderabad, Telangana, 500037, India
| | - Srinivas Nanduri
- Department of Pharmaceutical Technology and Process Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), 40, Dilip Rd, Jinkalwada, Balanagar, Hyderabad, Telangana, 500037, India
| | - Y V Madhavi
- Department of Pharmaceutical Technology and Process Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), 40, Dilip Rd, Jinkalwada, Balanagar, Hyderabad, Telangana, 500037, India.
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14
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Masoummi Shahi A, Nikpassand M, Fallah‐Bagher‐Shaidaei H, Fekri LZ. MOF‐promoted Three‐component Synthesis of Functionalized Pyrano[3,2‐
c
]chromen under Mild Conditions. J Heterocycl Chem 2019. [DOI: 10.1002/jhet.3519] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
| | | | | | - Leila Zare Fekri
- Department of Chemistry Payame Noor University P.O. Box 19395‐3697 Tehran Iran
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15
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Pini E, Poli G, Tuccinardi T, Chiarelli LR, Mori M, Gelain A, Costantino L, Villa S, Meneghetti F, Barlocco D. New Chromane-Based Derivatives as Inhibitors of Mycobacterium tuberculosis Salicylate Synthase (MbtI): Preliminary Biological Evaluation and Molecular Modeling Studies. Molecules 2018; 23:molecules23071506. [PMID: 29933627 PMCID: PMC6099841 DOI: 10.3390/molecules23071506] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 06/15/2018] [Accepted: 06/19/2018] [Indexed: 12/12/2022] Open
Abstract
Tuberculosis is the leading cause of death from a single infectious agent worldwide; therefore, the need for new antitubercular drugs is desperate. The recently validated target salicylate synthase MbtI is the first enzyme involved in the biosynthesis of mycobactins, compounds able to chelate iron, an essential cofactor for the survival of Mycobacterium tuberculosis in the host. Here, we report on the synthesis and biological evaluation of chromane-based compounds as new potential inhibitors of MbtI. Our approach successfully allowed the identification of a novel lead compound (1), endowed with a promising activity against this enzyme (IC50 = 55 μM). Molecular modeling studies were performed in order to evaluate the binding mode of 1 and rationalize the preliminary structure-activity relationships, thus providing crucial information to carry out further optimization studies.
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Affiliation(s)
- Elena Pini
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Via L. Mangiagalli 25, 20133 Milano, Italy.
| | - Giulio Poli
- Dipartimento di Farmacia, Università di Pisa, via Bonanno 6, 56126 Pisa, Italy.
| | - Tiziano Tuccinardi
- Dipartimento di Farmacia, Università di Pisa, via Bonanno 6, 56126 Pisa, Italy.
| | - Laurent Roberto Chiarelli
- Dipartimento di Biologia e Biotecnologie "Lazzaro Spallanzani", Università degli Studi di Pavia, via Ferrata 9, 27100 Pavia, Italy.
| | - Matteo Mori
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Via L. Mangiagalli 25, 20133 Milano, Italy.
| | - Arianna Gelain
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Via L. Mangiagalli 25, 20133 Milano, Italy.
| | - Luca Costantino
- Dipartimento Scienze della Vita, Università degli Studi di Modena e Reggio Emilia, via Campi 103, 41121 Modena, Italy.
| | - Stefania Villa
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Via L. Mangiagalli 25, 20133 Milano, Italy.
| | - Fiorella Meneghetti
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Via L. Mangiagalli 25, 20133 Milano, Italy.
| | - Daniela Barlocco
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Via L. Mangiagalli 25, 20133 Milano, Italy.
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Ayoub IM, Korinek M, Hwang TL, Chen BH, Chang FR, El-Shazly M, Singab ANB. Probing the Antiallergic and Anti-inflammatory Activity of Biflavonoids and Dihydroflavonols from Dietes bicolor. JOURNAL OF NATURAL PRODUCTS 2018; 81:243-253. [PMID: 29381070 DOI: 10.1021/acs.jnatprod.7b00476] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Dietes bicolor (Iridaceae) is an ornamental plant used by African local healers to treat diarrhea and dysentery. A new dihydroflavonol, (2R,3R)-3,5,7-trihydroxy-8-methoxyflavanone (1); two known dihydroflavonols, trans-3-hydroxy-5-methoxy-6,7-methylenedioxyflavanone (2) and trans-3-hydroxy-5,7-dimethoxyflavanone (3); the known isoflavone orobol 7,3'-di-O-methyl ether (4); the known biflavones lanaroflavone (5), robustaflavone (6), and amentoflavone (7); and β-sitosterol (8) were isolated from the CH2Cl2 fraction of D. bicolor leaves. The extract showed potent activity in antiallergic and anti-inflammatory assays. The structures of the isolates were identified by spectroscopic and spectrometric methods. Compounds 6 and 7 (400 μM) exhibited antiallergic activity by inhibiting antigen-induced β-hexosaminidase release at 45.7% and 46.3%, respectively. Moreover, 6 and 7 exerted anti-inflammatory activity as demonstrated by the inhibition of superoxide anion generation with an IC50 value of 1.0 μM as well as the inhibition of elastase release with IC50 values of 0.45 and 0.75 μM, respectively. The anti-inflammatory activity was further explained by the virtual docking of the isolated compounds to the binding sites in the human neutrophil elastase (HNE) crystal structure using Discovery Studio 2.5. It was concluded that the biflavonoids bind directly to HNE and inhibit its enzymatic activity based on the CDOCKER algorithm. The data provided evidence for the potential use of D. bicolor against certain diseases related to allergy and inflammation.
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Affiliation(s)
- Iriny M Ayoub
- Department of Pharmacognosy, Faculty of Pharmacy, Ain Shams University , African Union Organization Street, Cairo 11566, Egypt
| | | | - Tsong-Long Hwang
- Graduate Institute of Natural Products, College of Medicine, and Chinese Herbal Medicine Research Team, Healthy Aging Research Center, Chang Gung University , Taoyuan 33302, Taiwan
- Research Center for Chinese Herbal Medicine, Research Center for Food and Cosmetic Safety, and Graduate Institute of Health Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology , Taoyuan 33302, Taiwan
| | - Bing-Hung Chen
- Department of Medical Research, Kaohsiung Medical University Hospital , Kaohsiung 80708, Taiwan
- The Institute of Biomedical Sciences, National Sun Yat-sen University , Kaohsiung 804, Taiwan
| | | | - Mohamed El-Shazly
- Department of Pharmacognosy, Faculty of Pharmacy, Ain Shams University , African Union Organization Street, Cairo 11566, Egypt
- Department of Pharmaceutical Biology, Faculty of Pharmacy and Biotechnology, German University in Cairo , Cairo 11432, Egypt
| | - Abdel Nasser B Singab
- Department of Pharmacognosy, Faculty of Pharmacy, Ain Shams University , African Union Organization Street, Cairo 11566, Egypt
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Dongamanti A, Aamate VK, Devulapally MG, Gundu S, Balabadra S, Manga V, Yogeeswari P, Sriram D, Balasubramanian S. Bis-spirochromanones as potent inhibitors of Mycobacterium tuberculosis: synthesis and biological evaluation. Mol Divers 2017; 21:999-1010. [PMID: 28840414 DOI: 10.1007/s11030-017-9779-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Accepted: 08/02/2017] [Indexed: 11/30/2022]
Abstract
On the basis of reported antimycobacterial property of chroman-4-one pharmacophore, a series of chemically modified bis-spirochromanones were synthesized starting from 2-hydroxyacetophenone and 1,4-dioxaspiro[4.5] decan-8-one using a Kabbe condensation approach. The synthesized bis-spirochromanones were established based on their spectral data and X-ray crystal structure of 6e. All synthesized compounds were evaluated against Mycobacterium tuberculosis H37Rv (ATCC 27294) strain, finding that some products exhibited good antimycobacterial activity with minimum inhibitory concentration as low as [Formula: see text]. Docking studies were carried out to identify the binding interactions of compounds II, 6a and 6n with FtsZ. Compounds exhibiting good in vitro potency in the MTB MIC assay were further evaluated for toxicity using the HEK cell line.
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Affiliation(s)
- Ashok Dongamanti
- Green and Medicinal Chemistry Lab, Department of Chemistry, Osmania University, Hyderabad, Telangana State, 500 007, India.
| | - Vikas Kumar Aamate
- Green and Medicinal Chemistry Lab, Department of Chemistry, Osmania University, Hyderabad, Telangana State, 500 007, India
| | - Mohan Gandhi Devulapally
- Green and Medicinal Chemistry Lab, Department of Chemistry, Osmania University, Hyderabad, Telangana State, 500 007, India
| | - Srinivas Gundu
- Green and Medicinal Chemistry Lab, Department of Chemistry, Osmania University, Hyderabad, Telangana State, 500 007, India
| | - Saikrishna Balabadra
- Molecular Modeling and Medicinal Chemistry group, Department of Chemistry, Osmania University, Hyderabad, Telangana State, 500 007, India
| | - Vijjulatha Manga
- Molecular Modeling and Medicinal Chemistry group, Department of Chemistry, Osmania University, Hyderabad, Telangana State, 500 007, India
| | - Perumal Yogeeswari
- Department of Pharmacy, Birla Institute of Technology and Science - Pilani, Hyderabad Campus, Jawahar Nagar, Hyderabad, Telangana State, 500 078, India
| | - Dharmarajan Sriram
- Department of Pharmacy, Birla Institute of Technology and Science - Pilani, Hyderabad Campus, Jawahar Nagar, Hyderabad, Telangana State, 500 078, India
| | - Sridhar Balasubramanian
- X-ray Crystallography Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, Telangana State, 500 007, India
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Koirala N, Thuan NH, Ghimire GP, Thang DV, Sohng JK. Methylation of flavonoids: Chemical structures, bioactivities, progress and perspectives for biotechnological production. Enzyme Microb Technol 2016; 86:103-16. [PMID: 26992799 DOI: 10.1016/j.enzmictec.2016.02.003] [Citation(s) in RCA: 118] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Revised: 02/02/2016] [Accepted: 02/09/2016] [Indexed: 12/16/2022]
Abstract
Among the natural products, flavonoids have been particularly attractive, highly studied and become one of the most important promising agent to treat cancer, oxidant stress, pathogenic bacteria, inflammations, cardio-vascular dysfunctions, etc. Despite many promising roles of flavonoids, expectations have not been fulfilled when studies were extended to the in vivo condition, particularly in humans. Instability and very low oral bioavailability of dietary flavonoids are the reasons behind this. Researches have demonstrated that the methylation of these flavonoids could increase their promise as pharmaceutical agents leading to novel applications. Methylation of the flavonoids via theirs free hydroxyl groups or C atom dramatically increases their metabolic stability and enhances the membrane transport, leading to facilitated absorption and highly increased oral bioavailability. In this paper, we concentrated on analysis of flavonoid methoxides including O- and C-methoxide derivatives in aspect of structure, bioactivities and description of almost all up-to-date O- and C-methyltransferases' enzymatic characteristics. Furthermore, modern biological approaches for synthesis and production of flavonoid methoxides using metabolic engineering and synthetic biology have been focused and updated up to 2015. This review will give a handful information regarding the methylation of flavonoids, methyltransferases and biotechnological synthesis of the same.
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Affiliation(s)
- Niranjan Koirala
- Department of BT-Convergent Pharmaceutical Engineering, Institute of Biomolecule Reconstruction, Sun Moon University, 100, Kalsan-ri, Tangjeonmyun, Asansi, Chungnam 336-708, Republic of Korea.
| | - Nguyen Huy Thuan
- Center for Molecular Biology, Institute of Research and Development, Duy Tan University, K7/25 Quang Trung Street, Haichau District, Danang City, Viet Nam.
| | - Gopal Prasad Ghimire
- Department of BT-Convergent Pharmaceutical Engineering, Institute of Biomolecule Reconstruction, Sun Moon University, 100, Kalsan-ri, Tangjeonmyun, Asansi, Chungnam 336-708, Republic of Korea.
| | - Duong Van Thang
- Department of BT-Convergent Pharmaceutical Engineering, Institute of Biomolecule Reconstruction, Sun Moon University, 100, Kalsan-ri, Tangjeonmyun, Asansi, Chungnam 336-708, Republic of Korea.
| | - Jae Kyung Sohng
- Department of BT-Convergent Pharmaceutical Engineering, Institute of Biomolecule Reconstruction, Sun Moon University, 100, Kalsan-ri, Tangjeonmyun, Asansi, Chungnam 336-708, Republic of Korea.
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Design, Synthesis and Antimycobacterial Activity of Novel Imidazo[1,2-a]pyridine Amide-Cinnamamide Hybrids. Molecules 2015; 21:E49. [PMID: 26729085 PMCID: PMC6273240 DOI: 10.3390/molecules21010049] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Revised: 12/22/2015] [Accepted: 12/23/2015] [Indexed: 11/17/2022] Open
Abstract
We report herein the design and synthesis of a series of novel imidazo[1,2-a]pyridine amide-cinnamamide hybrids linked via an alkyl carbon chain. All 38 new hybrids were evaluated for their antimycobacterial activity against M. tuberculosis (MTB) H37Rv ATCC 27294 using the microplate Alamar Blue assay (MABA). Although the hybrids are less active than the two reference compounds, the promising activity (MICs: 4 μg/mL) of 2,6-dimethylimidazo[1,2-a]pyridine amide-cinnamamide hybrids 11e and 11k could be a good starting point to further find new lead compounds against multi-drug-resistant tuberculosis.
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Frerot E, Neirynck N, Cayeux I, Yuan YHJ, Yuan YM. New Umami Amides: Structure-Taste Relationship Studies of Cinnamic Acid Derived Amides and the Natural Occurrence of an Intense Umami Amide in Zanthoxylum piperitum. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:7161-7168. [PMID: 26230212 DOI: 10.1021/acs.jafc.5b02359] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A series of aromatic amides were synthesized from various acids and amines selected from naturally occurring structural frameworks. These synthetic amides were evaluated for umami taste in comparison with monosodium glutamate. The effect of the substitution pattern of both the acid and the amine parts on umami taste was investigated. The only intensely umami-tasting amides were those made from 3,4-dimethoxycinnamic acid. The amine part was more tolerant to structural changes. Amides bearing an alkyl- or alkoxy-substituted phenylethylamine residue displayed a clean umami taste as 20 ppm solutions in water. Ultraperformance liquid chromatography coupled with a high quadrupole-Orbitrap mass spectrometer (UPLC/MS) was subsequently used to show the natural occurrence of these amides. (E)-3-(3,4-Dimethoxyphenyl)-N-(4-methoxyphenethyl)acrylamide was shown to occur in the roots and stems of Zanthoxylum piperitum, a plant of the family Rutaceae growing in Korea, Japan, and China.
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Affiliation(s)
| | | | | | - Yoyo Hui-Juan Yuan
- ‡Firmenich Aromatics (China) Co., Ltd., No. 3901 JinDu Road, Xinzhuang Industry Park, Shanghai 201108, China
| | - Yong-Ming Yuan
- ‡Firmenich Aromatics (China) Co., Ltd., No. 3901 JinDu Road, Xinzhuang Industry Park, Shanghai 201108, China
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Anh DTP, Duong TB, Hoang VD. A new chromone fromHymenocallis littoralisSalisb. (Amaryllidaceae). Nat Prod Res 2014; 28:1869-72. [DOI: 10.1080/14786419.2014.951931] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Patel KN, Telvekar VN. Design, synthesis and antitubercular evaluation of novel series of N-[4-(piperazin-1-yl)phenyl]cinnamamide derivatives. Eur J Med Chem 2014; 75:43-56. [DOI: 10.1016/j.ejmech.2014.01.024] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2013] [Revised: 01/13/2014] [Accepted: 01/18/2014] [Indexed: 11/30/2022]
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Gaspar A, Matos MJ, Garrido J, Uriarte E, Borges F. Chromone: A Valid Scaffold in Medicinal Chemistry. Chem Rev 2014; 114:4960-92. [DOI: 10.1021/cr400265z] [Citation(s) in RCA: 472] [Impact Index Per Article: 47.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Alexandra Gaspar
- CIQUP/Department
of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Rua Campo Alegre 687, 4169-007 Porto, Portugal
- Department
of Organic Chemistry, Faculty of Pharmacy, University of Santiago of Compostela, 15782 Santiago de Compostela, Spain
| | - Maria João Matos
- CIQUP/Department
of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Rua Campo Alegre 687, 4169-007 Porto, Portugal
- Department
of Organic Chemistry, Faculty of Pharmacy, University of Santiago of Compostela, 15782 Santiago de Compostela, Spain
| | - Jorge Garrido
- CIQUP/Department
of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Rua Campo Alegre 687, 4169-007 Porto, Portugal
- Department
of Chemical Engineering, School of Engineering (ISEP), Polytechnic of Porto, 4200-072 Porto, Portugal
| | - Eugenio Uriarte
- Department
of Organic Chemistry, Faculty of Pharmacy, University of Santiago of Compostela, 15782 Santiago de Compostela, Spain
| | - Fernanda Borges
- CIQUP/Department
of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Rua Campo Alegre 687, 4169-007 Porto, Portugal
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TIPdb: a database of anticancer, antiplatelet, and antituberculosis phytochemicals from indigenous plants in Taiwan. ScientificWorldJournal 2013; 2013:736386. [PMID: 23766708 PMCID: PMC3666282 DOI: 10.1155/2013/736386] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2013] [Accepted: 04/18/2013] [Indexed: 11/30/2022] Open
Abstract
The unique geographic features of Taiwan are attributed to the rich indigenous and endemic plant species in Taiwan. These plants serve as resourceful bank for biologically active phytochemicals. Given that these plant-derived chemicals are prototypes of potential drugs for diseases, databases connecting the chemical structures and pharmacological activities may facilitate drug development. To enhance the utility of the data, it is desirable to develop a database of chemical compounds and corresponding activities from indigenous plants in Taiwan. A database of anticancer, antiplatelet, and antituberculosis phytochemicals from indigenous plants in Taiwan was constructed. The database, TIPdb, is composed of a standardized format of published anticancer, antiplatelet, and antituberculosis phytochemicals from indigenous plants in Taiwan. A browse function was implemented for users to browse the database in a taxonomy-based manner. Search functions can be utilized to filter records of interest by botanical name, part, chemical class, or compound name. The structured and searchable database TIPdb was constructed to serve as a comprehensive and standardized resource for anticancer, antiplatelet, and antituberculosis compounds search. The manually curated chemical structures and activities provide a great opportunity to develop quantitative structure-activity relationship models for the high-throughput screening of potential anticancer, antiplatelet, and antituberculosis drugs.
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Sen S, Chakraborty R, Rekha B, Revathi D, Ayyanna SC, Hemalatha G, Kumar Reddy GA, Hyndavi S, Ikhyatha Babu PJ, Prakash PR, Sridhar C. Anti-inflammatory, analgesic, and antioxidant activities of Pisonia aculeata: folk medicinal use to scientific approach. PHARMACEUTICAL BIOLOGY 2013; 51:426-32. [PMID: 23336600 DOI: 10.3109/13880209.2012.738331] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
CONTEXT Pisonia aculeata leaves (Nyctagenaceae), a Folk medicinal plant used in the treatment of several inflammation, pain, and oxidative stress associated diseases. OBJECTIVE To evaluate anti-inflammatory, analgesic, and antioxidant potential of crude methanol extract of P. aculeata leaves (MEPA). MATERIALS AND METHODS Analgesic and anti-inflammatory activities of MEPA (250 and 500 mg/kg) were evaluated using writhing, formalin, hot plate, tail flick, carrageenan-induced paw edema test, and membrane stabilizing activity. Free radical scavenging activity, total phenolic and flavonoid contents of MEPA were also determined using standard methods. RESULTS Oral administration of MEPA showed significant (p < 0.001) inhibition of paw edema, pronounced at 4 h and 5 h after carrageenan injection, and at 200 µg/mL exerts 77.67 and 38.51% protective effect against hypotonic solution and heat induced hemolysis, respectively. MEPA (250 and 500 mg/kg) produced 35.21 and 79.14% inhibition of acetic acid-induced writhing. Furthermore, MEPA (500 mg/kg) inhibited 49.19% early and 73.14% late phase of formalin-induced hypernociception. In contrast, a lower dose of MEPA did not prevent hot plate induced nociception, while in the tail immersion method, pronounced analgesic activity was observed between 1 and 4 h postdosing. The extract possesses significant in vitro antioxidant activity and a lipid peroxidation inhibition effect. Total phenolic and total flavonoid content in MEPA were 87.99 ± 0.87 mg GAE/g and 58.98 ± 0.01 mg QE/g, respectively. DISCUSSION AND CONCLUSION Our findings confirmed the analgesic, anti-inflammatory and antioxidant activities of Pisonia aculeata leaves. Contents of flavonoids and phenolic compounds in extract could be correlated with its observed biological activities.
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Affiliation(s)
- Saikat Sen
- Department of Pharmacology, Creative Educational Society's College of Pharmacy, Chinnatekur, Kurnool, Andhra Pradesh-518218, India.
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Abstract
A new class of alkylated chalcones and flavanones was synthesised and screened for antituberculosis, antixoidant, and cytotoxic activities. The desired compounds were synthesised using methyl substituted 2-hydroxyacetophenone as a key intermediate. The acetophenone derivative having methyl substitution was prepared in turn from methtylated phloroglucinol by formylation (by Vilsmeier-Haack reaction), followed by reduction with Wolf-Kishnner approach, and finally acetylation was involved. Among 17 compounds, compound5and compound4ainhibitedM. tuberculosisat minimum inhibitory concentration (MIC) in the range between 25 μg/mL and 50 μg/mL. The remaining other 15 compounds also potently inhibitedM. tuberculosisat MIC in range between 50 μg/mL and 100 μg/mL. Some of these compounds also showed moderate antioxidant and cytotoxic activities.
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Yan M, Ma S. Recent Advances in the Research of Heterocyclic Compounds as Antitubercular Agents. ChemMedChem 2012; 7:2063-75. [DOI: 10.1002/cmdc.201200339] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2012] [Revised: 08/28/2012] [Indexed: 11/10/2022]
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Mitra P, Shome B, Ranjan De S, Sarkar A, Mal D. Stereoselective synthesis of hydroxy stilbenoids and styrenes by atom-efficient olefination with thiophthalides. Org Biomol Chem 2012; 10:2742-52. [DOI: 10.1039/c2ob06991a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Gomathi R, Anusuya N, Chitravadivu C, Manian S. Antioxidant activity of lettuce tree (Pisonia morindifolia R.Br.) and tamarind tree (Tamarindus indica L.) and their efficacy in peanut oil stability. Food Sci Biotechnol 2011. [DOI: 10.1007/s10068-011-0230-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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