1
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Han S, Lu Y. Fluorine in anti-HIV drugs approved by FDA from 1981 to 2023. Eur J Med Chem 2023; 258:115586. [PMID: 37393791 DOI: 10.1016/j.ejmech.2023.115586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 06/17/2023] [Accepted: 06/20/2023] [Indexed: 07/04/2023]
Abstract
Human immunodeficiency virus (HIV) is the etiological agent of acquired immunodeficiency syndrome (AIDS). Nowadays, FDA has approved over thirty antiretroviral drugs grouped in six categories. Interestingly, one-third of these drugs contain different number of fluorine atoms. The introduction of fluorine to obtain drug-like compounds is a well-accepted strategy in medicinal chemistry. In this review, we summarized 11 fluorine-containing anti-HIV drugs, focusing on their efficacy, resistance, safety, and specific roles of fluorine in the development of each drug. These examples may be of help for the discovery of new drug candidates bearing fluorine in their structures.
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Affiliation(s)
- Sheng Han
- School of Medicine, Shanghai University, Shanghai, China.
| | - Yiming Lu
- School of Medicine, Shanghai University, Shanghai, China; Department of Critical Care Medicine, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China.
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2
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Yuan C, Wang Q, Feng T, Liu J, Cheung W, Wang G, Sun S, Xing Y. Transition‐metal free synthesis of
2‐pyrones
by [3 + 3] annulation of cyclopropenones and sulfur ylides. J Heterocycl Chem 2023. [DOI: 10.1002/jhet.4641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
Affiliation(s)
- Cheng Yuan
- Hubei Key Laboratory of Radiation Chemistry and Functional Materials, Non‐power Nuclear Technology Collaborative Innovation Center, School of Nuclear Technology and Chemistry & Biology; School of Pharmacy Hubei University of Science and Technology Xianning China
| | - Qingqing Wang
- Hubei Key Laboratory of Radiation Chemistry and Functional Materials, Non‐power Nuclear Technology Collaborative Innovation Center, School of Nuclear Technology and Chemistry & Biology; School of Pharmacy Hubei University of Science and Technology Xianning China
| | - Tao Feng
- School of Pharmaceutical Sciences South‐Central University for Nationalities Wuhan China
| | - Jikai Liu
- School of Pharmaceutical Sciences South‐Central University for Nationalities Wuhan China
| | - William Cheung
- Department of Chemistry Hofstra University Hempstead New York USA
| | - Gangqiang Wang
- Hubei Key Laboratory of Radiation Chemistry and Functional Materials, Non‐power Nuclear Technology Collaborative Innovation Center, School of Nuclear Technology and Chemistry & Biology; School of Pharmacy Hubei University of Science and Technology Xianning China
- School of Pharmaceutical Sciences South‐Central University for Nationalities Wuhan China
| | - Shaofa Sun
- Hubei Key Laboratory of Radiation Chemistry and Functional Materials, Non‐power Nuclear Technology Collaborative Innovation Center, School of Nuclear Technology and Chemistry & Biology; School of Pharmacy Hubei University of Science and Technology Xianning China
| | - Yalan Xing
- Department of Chemistry Hofstra University Hempstead New York USA
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3
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Kumar D, Sharma P, Shabu, Kaur R, Lobe MMM, Gupta GK, Ntie-Kang F. In search of therapeutic candidates for HIV/AIDS: rational approaches, design strategies, structure-activity relationship and mechanistic insights. RSC Adv 2021; 11:17936-17964. [PMID: 35480193 PMCID: PMC9033207 DOI: 10.1039/d0ra10655k] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Accepted: 04/19/2021] [Indexed: 12/23/2022] Open
Abstract
The HIV/AIDS pandemic is a serious threat to the health and development of mankind, which has affected about 37.9 million people worldwide. The increasing negative health, economic and social impacts of this disease have led to the search for new therapeutic candidates for the mitigation of AIDS/HIV. However, to date, there is still no treatment that can cure this disease. Furthermore, the clinically available drugs have numerous severe side effects. Hence, the synthesis of novel agents from natural leads is one of the rational approaches to obtain new drugs in modern medicinal chemistry. This review article is an effort to summarize recent developments with regards to the discovery of novel analogs with promising biological potential against HIV/AIDS. Herein, we also aim to discuss prospective directions on the progress of more credible and specific analogues. Besides presenting design strategies, the present communication also highlights the structure-activity relationship together with the structural features of the most promising molecules, their IC50 values, mechanistic insights and some interesting key findings revealed during their biological evaluation. The interactions with the amino acid residues of the enzymes responsible for HIV-1 inhibition are also discussed. This collection will be of great interest for researchers working in this area.
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Affiliation(s)
- Dinesh Kumar
- Sri Sai College of Pharmacy Manawala Amritsar-143001 Punjab India +91-9988902489
| | - Pooja Sharma
- Sri Sai College of Pharmacy Manawala Amritsar-143001 Punjab India +91-9988902489
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University Patiala India
| | - Shabu
- Indian Institute of Integrative Medicine (CSIR-IIIM) Canal Road Jammu 180001 India
| | - Ramandeep Kaur
- Sri Sai College of Pharmacy Manawala Amritsar-143001 Punjab India +91-9988902489
| | - Maloba M M Lobe
- Department of Chemistry, Faculty of Science, University of Buea P. O. Box 63 Buea Cameroon +237 685625811
| | - Girish K Gupta
- Department of Pharmaceutical Chemistry, Sri Sai College of Pharmacy Badhani Pathankot-145001 Punjab India
| | - Fidele Ntie-Kang
- Department of Chemistry, Faculty of Science, University of Buea P. O. Box 63 Buea Cameroon +237 685625811
- Institute for Pharmacy, Martin-Luther-Universität Halle-Wittenberg Kurt-Mothes-Str. 3 06120 Halle (Saale) Germany +49 3455525043
- Institute of Botany, Technical University of Dresden Zellescher Weg 20b 01062 Dresden Germany
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4
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Yu Z, Lu X, Choi J, Deng S, Xiong B, Zhang W, Wang H, Wang S, Tan H. 2-Pyrones from endophytic fungus Diaporthe foeniculina BZM-15. Nat Prod Res 2021; 36:4853-4861. [PMID: 33771054 DOI: 10.1080/14786419.2021.1904400] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Foeniculins A-C (1-3) together with a pair of enantiomers (±)-foeniculin D (4) were isolated from endophytic fungus Diaporthe foeniculina BZM-15. Their structures including absolute configurations were unambiguously established by extensive interpretation of the NMR and HR-ESI-MS data, ECD measurements powered by molecular calculations, as well as Mo2(OAc)4 mediated CD methodology. The cytotoxic activity assay disclosed that these compounds didn't show any noticeable cytotoxic activity.
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Affiliation(s)
- Zhonghua Yu
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, Key Laboratory of South China Agricultural Plant Molecular Analysis, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou China.,Department of Landscape Architecture, PaiChai University, Deajeon, South Korea
| | - Xiuxiang Lu
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, Key Laboratory of South China Agricultural Plant Molecular Analysis, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou China.,University of Chinese Academy of Sciences, Beijing, China
| | - Jaehyuck Choi
- Department of Landscape Architecture, PaiChai University, Deajeon, South Korea
| | - Shulin Deng
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, Key Laboratory of South China Agricultural Plant Molecular Analysis, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou China
| | - Binghong Xiong
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, Key Laboratory of South China Agricultural Plant Molecular Analysis, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou China
| | - Wenge Zhang
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, Key Laboratory of South China Agricultural Plant Molecular Analysis, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou China.,University of Chinese Academy of Sciences, Beijing, China
| | - Huan Wang
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, Key Laboratory of South China Agricultural Plant Molecular Analysis, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou China.,National Engineering Research Center of Navel Orange, Gannan Normal University, Ganzhou, Peopleu, rmal Universitynt
| | - Sasa Wang
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, Key Laboratory of South China Agricultural Plant Molecular Analysis, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou China.,Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi University for Nationalities, Nanning, China
| | - Haibo Tan
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, Key Laboratory of South China Agricultural Plant Molecular Analysis, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou China.,National Engineering Research Center of Navel Orange, Gannan Normal University, Ganzhou, Peopleu, rmal Universitynt
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5
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Sarhan AA, Haukka M, Barakat A, Boraei AT. A novel synthetic approach to pyran-2,4-dione scaffold production: Microwave-assisted dimerization, cyclization, and expeditious regioselective conversion into β-enamino-pyran-2,4-diones. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152660] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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6
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Sebhaoui J, El Bakri Y, Lai CH, Karthikeyan S, Anouar EH, Mague JT, Essassi EM. Unexpected synthesis of novel 2-pyrone derivatives: crystal structures, Hirshfeld surface analysis and computational studies. J Biomol Struct Dyn 2020; 39:4859-4877. [PMID: 32571166 DOI: 10.1080/07391102.2020.1780943] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Here we report synthesis of three new compounds namely, 1-acetyl-1H-benzimidazolo-2(3H)-one (I), N-(5-acetyl-6-methyl-2-oxo-2H-pyran-4-yl)-N-(2-acetamidophenyl)acetamide (II) and N-(2-acetamidophenyl)-N-2-oxo-2H-pyran-4-yl)acetamide (III) have been synthesized and characterized by single crystal X-ray diffraction. Compounds I and II crystallize in the monoclinic space groups P21/n, and P21/c, respectively, while III crystallizes in the triclinic space group P-1. The theoretical parameters of I-III have been calculated through density functional theory (DFT) by using the hybrid functional B3LYP and basis set 6-311++G**. These theoretical parameters have been compared with the experimental ones obtained by XRD. The significant intermolecular interactions arising in crystal packing are rationalized by means of the Hirshfeld surface analysis method. The major intermolecular contacts in the Hirshfeld surfaces of I-III are from H…H contacts. In addition, binding modes of I-III within Tyrosine-protein kinase JAK2 were investigated using molecular docking and molecular dynamics simulation studies.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Jihad Sebhaoui
- Laboratoire de Chimie Organique Hétérocyclique, Centre de Recherche des Sciences des Médicaments, Pôle de Compétences Pharmacochimie, URAC 21, Faculté des Sciences, Mohammed V University Rabat, Rabat, Morocco
| | - Youness El Bakri
- Laboratoire de Chimie Organique Hétérocyclique, Centre de Recherche des Sciences des Médicaments, Pôle de Compétences Pharmacochimie, URAC 21, Faculté des Sciences, Mohammed V University Rabat, Rabat, Morocco.,South Ural State University, Chelyabinsk, Russian Federation
| | - Chin-Hung Lai
- Department of Medical Applied Chemistry, Chung Shan Medical University, Taichung, Taiwan.,Department of Medical Education, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Subramani Karthikeyan
- Organic Chemistry Department, Science Faculty, RUDN University, Moscow, Russian Federation
| | - El Hassane Anouar
- Department of Chemistry, College of Science and Humanities in Al-Kharj, Prince Sattam bin Abdulaziz University, Al-Kharj, Saudi Arabia
| | - Joel T Mague
- Department of Chemistry, Tulane University, New Orleans, LA, USA
| | - El Mokhtar Essassi
- Laboratoire de Chimie Organique Hétérocyclique, Centre de Recherche des Sciences des Médicaments, Pôle de Compétences Pharmacochimie, URAC 21, Faculté des Sciences, Mohammed V University Rabat, Rabat, Morocco
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7
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8
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Obi G, Chukwujekwu JC, van Heerden FR. Synthesis and antimicrobial activity of new prenylated 2-pyrone derivatives. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1718710] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Grace Obi
- School of Chemistry and Physics, University of KwaZulu-Natal, Scottsville, Pietermaritzburg, South Africa
| | - Jude C. Chukwujekwu
- School of Chemistry and Physics, University of KwaZulu-Natal, Scottsville, Pietermaritzburg, South Africa
| | - Fanie R. van Heerden
- School of Chemistry and Physics, University of KwaZulu-Natal, Scottsville, Pietermaritzburg, South Africa
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9
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Abstract
A series of novel coumarin-1,2,3-triazole derivatives were synthesized in good yield via click chemistry using Cu(I) catalyzed intermolecular Huisgen [3+2] cycloaddition reaction. All the synthesized compounds were characterized spectroscopically. This piece of work could be helpful to develop biologically relevant coumarin analogs.
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Affiliation(s)
- Ritu Mamgain
- Department of Chemistry, Modern College of Arts, Science and Commerce, Ganeshkhind, Pune-411007, India
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10
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Khandaker TA, Hess JD, Aguilera R, Andrei G, Snoeck R, Schols D, Pradhan P, Lakshman MK. Synthesis and Evaluations of "1,4-Triazolyl Combretacoumarins" and Desmethoxy Analogues. European J Org Chem 2019; 2019:5610-5623. [PMID: 31579393 PMCID: PMC6774347 DOI: 10.1002/ejoc.201900569] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Indexed: 11/23/2022]
Abstract
1,4-Triazolyl combretacoumarins have been prepared by linking the trimethoxyarene unit of combretastatin A4 with coumarins, via a 1,2,3-triazole. For this, 4-azidocoumarins were accessed by a sequential two-step, one-pot reaction of 4-hydroxycoumarins with (benzotriazol-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate (BOP), followed by reaction with NaN3. In the reaction with BOP, a coumarin-derived phosphonium ion intermediate seems to form, leading to an O 4-(benzotriazolyl)coumarin derivative. For the CuAAC reaction of azidocoumarins with 5-ethynyl-1,2,3-trimethoxybenzene, catalytic [(MeCN)4Cu]PF6 in CH2Cl2/MeOH with 2,6-lutidine, at 50 °C, was suitable. The 4-azidocoumarins were less reactive as compared to PhN3 and the NBO coefficients of the azido groups were compared by DFT analysis. Compound solubility was a problem in biological assays. On the basis of the biological and solubility data of one 1,4-triazolyl combretacoumarin, four analogues lacking one or two methoxy groups were synthesized. Reactivity differences among the phenylacetylenes were noted and the NBO coefficients of the alkynes were compared by DFT analysis. In antiproliferative assays, 1-phenyl-4-(3,4,5-trimethoxyphenyl)-1H-1,2,3-triazole showed activity in CEM and MDA-MB-231 cell lines, possibly by apoptosis. The desmethoxy 6-bromo-4-(4-(4-methoxyphenyl)-1H-1,2,3-triazol-1-yl)-2H-chromen-2-one also showed cytotoxicity against the two cell lines, but this did not appear to be consistent with apoptosis. The antiviral activity of the compounds was unremarkable.
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Affiliation(s)
- Tashrique A. Khandaker
- Department of Chemistry and BiochemistryThe City College of New York160 Convent AvenueNew YorkNY10031USA
| | - Jessica D. Hess
- Department of Biological SciencesBorder Biomedical Research CenterThe University of Texas at El PasoEl PasoTX79968USA
| | - Renato Aguilera
- Department of Biological SciencesBorder Biomedical Research CenterThe University of Texas at El PasoEl PasoTX79968USA
| | - Graciela Andrei
- Department of Microbiology and ImmunologyRega Institute of Medical ResearchHerestraat 49 – Box 10433000LeuvenLeuvenBelgium
| | - Robert Snoeck
- Department of Microbiology and ImmunologyRega Institute of Medical ResearchHerestraat 49 – Box 10433000LeuvenLeuvenBelgium
| | - Dominique Schols
- Department of Microbiology and ImmunologyRega Institute of Medical ResearchHerestraat 49 – Box 10433000LeuvenLeuvenBelgium
| | - Padmanava Pradhan
- Department of Chemistry and BiochemistryThe City College of New York160 Convent AvenueNew YorkNY10031USA
| | - Mahesh K. Lakshman
- Department of Chemistry and BiochemistryThe City College of New York160 Convent AvenueNew YorkNY10031USA
- The Ph.D. Program in ChemistryThe Graduate Center of the City University of New YorkNew YorkNY10016USA
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11
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Wei Y, Li W, Du T, Hong Z, Lin J. Targeting HIV/HCV Coinfection Using a Machine Learning-Based Multiple Quantitative Structure-Activity Relationships (Multiple QSAR) Method. Int J Mol Sci 2019; 20:ijms20143572. [PMID: 31336592 PMCID: PMC6678913 DOI: 10.3390/ijms20143572] [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: 07/02/2019] [Revised: 07/13/2019] [Accepted: 07/21/2019] [Indexed: 12/11/2022] Open
Abstract
Human immunodeficiency virus type-1 and hepatitis C virus (HIV/HCV) coinfection occurs when a patient is simultaneously infected with both human immunodeficiency virus type-1 (HIV-1) and hepatitis C virus (HCV), which is common today in certain populations. However, the treatment of coinfection is a challenge because of the special considerations needed to ensure hepatic safety and avoid drug–drug interactions. Multitarget inhibitors with less toxicity may provide a promising therapeutic strategy for HIV/HCV coinfection. However, the identification of one molecule that acts on multiple targets simultaneously by experimental evaluation is costly and time-consuming. In silico target prediction tools provide more opportunities for the development of multitarget inhibitors. In this study, by combining Naïve Bayes (NB) and support vector machine (SVM) algorithms with two types of molecular fingerprints, MACCS and extended connectivity fingerprints 6 (ECFP6), 60 classification models were constructed to predict compounds that were active against 11 HIV-1 targets and four HCV targets based on a multiple quantitative structure–activity relationships (multiple QSAR) method. Five-fold cross-validation and test set validation were performed to measure the performance of the 60 classification models. Our results show that the 60 multiple QSAR models appeared to have high classification accuracy in terms of the area under the ROC curve (AUC) values, which ranged from 0.83 to 1 with a mean value of 0.97 for the HIV-1 models and from 0.84 to 1 with a mean value of 0.96 for the HCV models. Furthermore, the 60 models were used to comprehensively predict the potential targets of an additional 46 compounds, including 27 approved HIV-1 drugs, 10 approved HCV drugs and nine selected compounds known to be active against one or more targets of HIV-1 or HCV. Finally, 20 hits, including seven approved HIV-1 drugs, four approved HCV drugs, and nine other compounds, were predicted to be HIV/HCV coinfection multitarget inhibitors. The reported bioactivity data confirmed that seven out of nine compounds actually interacted with HIV-1 and HCV targets simultaneously with diverse binding affinities. The remaining predicted hits and chemical-protein interaction pairs with the potential ability to suppress HIV/HCV coinfection are worthy of further experimental investigation. This investigation shows that the multiple QSAR method is useful in predicting chemical-protein interactions for the discovery of multitarget inhibitors and provides a unique strategy for the treatment of HIV/HCV coinfection.
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Affiliation(s)
- Yu Wei
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Haihe Education Park, 38 Tongyan Road, Tianjin 300353, China
| | - Wei Li
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Haihe Education Park, 38 Tongyan Road, Tianjin 300353, China
- Platform of Pharmaceutical Intelligence, Tianjin International Joint Academy of Biomedicine, Tianjin 300000, China
| | - Tengfei Du
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Haihe Education Park, 38 Tongyan Road, Tianjin 300353, China
| | - Zhangyong Hong
- State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, 94 Weijin Road, Tianjin 300071, China.
| | - Jianping Lin
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Haihe Education Park, 38 Tongyan Road, Tianjin 300353, China.
- Platform of Pharmaceutical Intelligence, Tianjin International Joint Academy of Biomedicine, Tianjin 300000, China.
- Biodesign Center, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China.
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12
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Zhao T, Chang Y, Zhu T, Li J, Gu Q, Li D, Che Q, Zhang G. α-Pyrone derivatives with cyto-protective activity from two Takla Makan desert soil derived actinomycete Nocardiopsis strains recovered in seawater based medium. Nat Prod Res 2018; 33:2498-2506. [PMID: 29607732 DOI: 10.1080/14786419.2018.1455046] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
In this paper, we described the discovery of two Nocardiopsis strains HDN154-146 and HDN154-168 from Takla Makan desert soil samples using seawater based medium. Chemical investigation of these two strains led to the discovery of eight new α-pyrone derivatives named nocahypyrones A-H (1-8), together with one known analogue germicidin G (9). The structures of these compounds, including absolute configurations, were elucidated by extensive NMR, MS, and CD analyses. Compounds 1-9 were tested for their cyto-protective activities and for the first time we found α-pyrones 5 and 8 exhibited capabilities to induce expression of phase II detoxifying enzymes.
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Affiliation(s)
- Tingting Zhao
- a Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy , Ocean University of China , Qingdao , People's Republic of China
| | - Yimin Chang
- a Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy , Ocean University of China , Qingdao , People's Republic of China
| | - Tianjiao Zhu
- a Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy , Ocean University of China , Qingdao , People's Republic of China .,b Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology , Qingdao , P. R. China
| | - Jing Li
- c College of Marine Life Science , Ocean University of China , Qingdao , People's Republic of China
| | - Qianqun Gu
- a Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy , Ocean University of China , Qingdao , People's Republic of China
| | - Dehai Li
- a Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy , Ocean University of China , Qingdao , People's Republic of China .,b Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology , Qingdao , P. R. China
| | - Qian Che
- a Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy , Ocean University of China , Qingdao , People's Republic of China .,b Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology , Qingdao , P. R. China
| | - Guojian Zhang
- a Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy , Ocean University of China , Qingdao , People's Republic of China .,b Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology , Qingdao , P. R. China
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13
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Synthesis, X-ray crystal structures, electrochemistry and theoretical investigation of a tetradentate nickel and copper Schiff base complexes. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.07.032] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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14
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Bhat ZS, Rather MA, Maqbool M, Lah HU, Yousuf SK, Ahmad Z. α-pyrones: Small molecules with versatile structural diversity reflected in multiple pharmacological activities-an update. Biomed Pharmacother 2017; 91:265-277. [PMID: 28460229 DOI: 10.1016/j.biopha.2017.04.012] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Revised: 03/18/2017] [Accepted: 04/10/2017] [Indexed: 12/15/2022] Open
Abstract
The investigations in the chemistry and biology of α-pyrone (2-pyrone) are of vital importance as they constitute an essential pharmacophore in many naturally occurring and biologically active synthetic agents. They are a promising class of biorenewable platform chemicals that provide access to an array of chemical products and intermediates. Literature survey reveals that a simple change in the substitution pattern on the 2-pyrone ring system often leads to diverse biological activities. In this review, we present a brief overview of 2-pyrone pharmacophore followed by highlighting their pharmacological properties and potential applicability till date. Particular attention is focused on the distinctive chemotherapeutic activities of 2-pyrones as anti-HIV, anti-TB and anti-cancer agents followed by their potential role against neurodegeneration, hypercholesterolemia, microbial infections, chronic obstructive lung disease, inflammation, antinociception and immunomodulation. Since 2005, when 2-pyrones came in limelight, their detailed pharmacological activities have been well documented. This review has mainly been prepared on the basis of original reports published in recent two decades with an aim to attract the attention of researchers towards this versatile scaffold for future endeavors that may lead to the development of potential drug candidates against above diseases.
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Affiliation(s)
- Zubair Shanib Bhat
- Clinical Microbiology and PK/PD Division, Council of scientific and industrial research (CSIR) -Indian Institute of Integrative Medicine (IIIM), Sanatnagar, Srinagar, 190005, India; Academy of Scientific and Innovative Research (AcSIR), Indian Institute of Integrative Medicine (CSIR), Sanatnagar Srinagar, Jammu and Kashmir 190005, India
| | - Muzafar Ahmad Rather
- Clinical Microbiology and PK/PD Division, Council of scientific and industrial research (CSIR) -Indian Institute of Integrative Medicine (IIIM), Sanatnagar, Srinagar, 190005, India
| | - Mubashir Maqbool
- Clinical Microbiology and PK/PD Division, Council of scientific and industrial research (CSIR) -Indian Institute of Integrative Medicine (IIIM), Sanatnagar, Srinagar, 190005, India
| | - Hafiz Ul Lah
- Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Sanatnagar, Srinagar, 190005, India
| | - Syed Khalid Yousuf
- Academy of Scientific and Innovative Research (AcSIR), Indian Institute of Integrative Medicine (CSIR), Sanatnagar Srinagar, Jammu and Kashmir 190005, India; Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Sanatnagar, Srinagar, 190005, India
| | - Zahoor Ahmad
- Clinical Microbiology and PK/PD Division, Council of scientific and industrial research (CSIR) -Indian Institute of Integrative Medicine (IIIM), Sanatnagar, Srinagar, 190005, India; Academy of Scientific and Innovative Research (AcSIR), Indian Institute of Integrative Medicine (CSIR), Sanatnagar Srinagar, Jammu and Kashmir 190005, India.
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15
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16
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Zhang XM, Sun MW, Shi H, Lu CH. α-pyrone derivatives from a marine actinomycete Nocardiopsis sp. YIM M13066. Nat Prod Res 2017. [DOI: 10.1080/14786419.2017.1299730 pmid: 28281] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/30/2022]
Affiliation(s)
- Xiao-Mei Zhang
- College of Basic Medicine, Yunnan University of Traditional Chinese Medicine, Kunming, China
| | - Ming-Wei Sun
- Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, Jinan, China
| | - Hui Shi
- Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, Jinan, China
| | - Chun-Hua Lu
- Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, Jinan, China
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17
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Zhang XM, Sun MW, Shi H, Lu CH. α-pyrone derivatives from a marine actinomycete Nocardiopsis sp. YIM M13066. Nat Prod Res 2017; 31:2245-2249. [DOI: 10.1080/14786419.2017.1299730] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Xiao-Mei Zhang
- College of Basic Medicine, Yunnan University of Traditional Chinese Medicine, Kunming, China
| | - Ming-Wei Sun
- Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, Jinan, China
| | - Hui Shi
- Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, Jinan, China
| | - Chun-Hua Lu
- Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, Jinan, China
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18
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Yu GQ, Dou ZL, Jia ZH. 5‑bromo‑3‑(3‑hydroxyprop‑1‑ynyl)‑2H‑pyran‑2‑one induces apoptosis in T24 human bladder cancer cells through mitochondria-dependent signaling pathways. Mol Med Rep 2016; 15:153-159. [PMID: 27922685 PMCID: PMC5355715 DOI: 10.3892/mmr.2016.5991] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2015] [Accepted: 09/09/2016] [Indexed: 01/09/2023] Open
Abstract
The present study was performed to investigate the effect of 5-bromo-3-(3-hydroxyprop-1-ynyl)-2H-pyran-2-one (BHP) on the induction of apoptosis and cell cycle arrest in T24 human bladder carcinoma cells. An MTT assay was used to investigate the inhibition of cell proliferation. Flow cytometry was used to observe alterations in the cell cycle, generation of reactive oxygen species (ROS), alterations in mitochondrial membrane potential (MMP) and induction of apoptosis in the T24 cells following BHP treatment. Western blot analysis was performed for the determination of expression levels of apoptotic proteins, and 4,6‑diamidino‑2‑phenylindole dihydrochloride staining was used to observe apoptosis and DNA damage. The results demonstrated that treatment of the bladder cancer cells with BHP enhanced the activation of caspases and increased the production of ROS. It also caused damage to DNA, reduced MMP, and increased the secretion of endonuclease G and apoptosis‑inducing factor from the mitochondria. The expression levels of cyclin E and cell division cycle 25C were reduced, whereas the expression levels of p21 and phosphorylated p53 were increased in the BHP‑treated cells. In addition, treatment with BHP caused cell cycle arrest at the G0/G1 phase, increased the expression levels of B cell lymphoma‑2 (Bcl‑2)‑associated X protein and poly(ADP‑ribose) polymerase, decreased the expression of Bcl‑2 and ultimately induced apoptosis of the T24 cells. Thus, BHP inhibited the proliferation of bladder cancer cells by inducing cell apoptosis through the mitochondrial pathway.
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Affiliation(s)
- Guo-Qiang Yu
- Department of Urological Surgery, The First Affiliated Hospital, College of Clinical Medicine, Henan University of Science and Technology, Luoyang, Henan 471003, P.R. China
| | - Zhong-Ling Dou
- Department of Urological Surgery, The First Affiliated Hospital, College of Clinical Medicine, Henan University of Science and Technology, Luoyang, Henan 471003, P.R. China
| | - Zhao-Hui Jia
- Department of Urological Surgery, The First Affiliated Hospital, College of Clinical Medicine, Henan University of Science and Technology, Luoyang, Henan 471003, P.R. China
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Hassan MZ, Osman H, Ali MA, Ahsan MJ. Therapeutic potential of coumarins as antiviral agents. Eur J Med Chem 2016; 123:236-255. [PMID: 27484512 PMCID: PMC7115672 DOI: 10.1016/j.ejmech.2016.07.056] [Citation(s) in RCA: 199] [Impact Index Per Article: 24.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Revised: 07/21/2016] [Accepted: 07/23/2016] [Indexed: 12/24/2022]
Abstract
Coumarins have received a considerable attention in the last three decades as a lead structures for the discovery of orally bioavailable non-peptidic antiviral agents. A lot of structurally diverse coumarins analogues were found to display remarkable array of affinity with the different molecular targets for antiviral agents and slight modifications around the central motif result in pronounced changes in its antiviral spectrum. This manuscript thoroughly reviews the design, discovery and structure-activity relationship studies of the coumarin analogues as antiviral agents focusing mainly on lead optimization and its development into clinical candidates.
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Affiliation(s)
- Mohd Zaheen Hassan
- School of Chemical Sciences, Universiti Sains Malaysia, Minden, 11800 Penang, Malaysia; Department of Pharmaceutical Chemistry, Alwar Pharmacy College, M.I.A., Alwar, Rajasthan 301030, India.
| | - Hasnah Osman
- School of Chemical Sciences, Universiti Sains Malaysia, Minden, 11800 Penang, Malaysia.
| | - Mohamed Ashraf Ali
- Institute for Research in Molecular Medicine, Universiti Sains Malaysia, Minden, 11800 Penang, Malaysia
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20
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Zhang H, Saurav K, Yu Z, Mándi A, Kurtán T, Li J, Tian X, Zhang Q, Zhang W, Zhang C. α-Pyrones with Diverse Hydroxy Substitutions from Three Marine-Derived Nocardiopsis Strains. JOURNAL OF NATURAL PRODUCTS 2016; 79:1610-1618. [PMID: 27300427 DOI: 10.1021/acs.jnatprod.6b00175] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Eight new α-pyrones 1-8 and three known α-pyrones 9-11 were isolated from three marine-derived Nocardiopsis strains SCSIO 10419, SCSIO 04583, and SCSIO KS107. The structures of compounds 1-8 were elucidated by comprehensive spectral analyses. The absolute configurations of 4-deoxyphomapyrone C (1), 4-deoxy-11-hydroxyphomapyrone C (3), 4-deoxy-7R-hydroxyphomapyrone C (5), and phomapyrone C (11) were determined by TDDFT-ECD calculations for the solution conformers, which revealed that the conformation of the side chain was decisive for the sign of the characteristic high-wavelength ECD transition. (-)-4-Deoxy-8-hydroxyphomapyrone C (4) was isolated from SCSIO 10419 and was deduced as a diastereomeric mixture containing (8S)- and (8R)-4-deoxy-8-hydroxyphomapyrone C in a ratio of 2.6:1 (8R:8S), by chiral-phase HPLC analysis and Mosher's ester analysis. Interestingly, 7-hydroxymucidone (9) was isolated from both SCSIO 04583 and SCSIO KS107, as an enantiomeric mixture containing (7S)-hydroxymucidone (major in 9 from SCSIO 04583) and (7R)-hydroxymucidone (major in 9 from SCSIO KS107). α-Pyrones 3-5 were identified as three isomers of phomapyrone C (11) with diverse hydroxy substitutions. α-Pyrones 10-hydroxymucidone (6), 4-hydroxymucidone (8), and 9, differed in the position of the hydroxy group. Several α-pyrones exhibited moderate growth inhibitory activity against Micrococcus luteus and Bacillus subtilis.
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Affiliation(s)
- Haibo Zhang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences , 164 West Xingang Road, Guangzhou 510301, China
| | - Kumar Saurav
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences , 164 West Xingang Road, Guangzhou 510301, China
| | - Ziquan Yu
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences , 164 West Xingang Road, Guangzhou 510301, China
- School of Life Sciences, Hunan Normal University , 36 Lushan Road, Changsha 410081, China
| | - Attila Mándi
- Department of Organic Chemistry, University of Debrecen , P.O. Box 400, H-4002 Debrecen, Hungary
| | - Tibor Kurtán
- Department of Organic Chemistry, University of Debrecen , P.O. Box 400, H-4002 Debrecen, Hungary
| | - Jie Li
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences , 164 West Xingang Road, Guangzhou 510301, China
| | - Xinpeng Tian
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences , 164 West Xingang Road, Guangzhou 510301, China
| | - Qingbo Zhang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences , 164 West Xingang Road, Guangzhou 510301, China
| | - Wenjun Zhang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences , 164 West Xingang Road, Guangzhou 510301, China
| | - Changsheng Zhang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences , 164 West Xingang Road, Guangzhou 510301, China
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Abstract
The α-pyrone moiety is a structural feature found in a huge variety of biologically active metabolites. In recent times new insights into additional biosynthetic mechanisms, yielding in such six-membered unsaturated ester ring residues have been obtained. The purpose of this mini-review is to give a brief overview of α-pyrones and the mechanisms forming the basis of their natural synthesis. Especially the chain interconnecting enzymes, showing homology to ketosynthases which catalyze Claisen-like condensation reactions, will be presented.
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Affiliation(s)
- Till F Schäberle
- Institute for Pharmaceutical Biology, University of Bonn, Nußallee 6, 53115 Bonn, Germany
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22
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Kresovic D, Schempp F, Cheikh-Ali Z, Bode HB. A novel and widespread class of ketosynthase is responsible for the head-to-head condensation of two acyl moieties in bacterial pyrone biosynthesis. Beilstein J Org Chem 2015; 11:1412-7. [PMID: 26425196 PMCID: PMC4578411 DOI: 10.3762/bjoc.11.152] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Accepted: 07/22/2015] [Indexed: 01/22/2023] Open
Abstract
The biosynthesis of photopyrones, novel quorum sensing signals in Photorhabdus, has been studied by heterologous expression of the photopyrone synthase PpyS catalyzing the head-to-head condensation of two acyl moieties. The biochemical mechanism of pyrone formation has been investigated by amino acid exchange and bioinformatic analysis. Additionally, the evolutionary origin of PpyS has been studied by phylogenetic analyses also revealing homologous enzymes in Pseudomonas sp. GM30 responsible for the biosynthesis of pseudopyronines including a novel derivative. Moreover this novel class of ketosynthases is only distantly related to other pyrone-forming enzymes identified in the biosynthesis of the potent antibiotics myxopyronin and corallopyronin.
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Affiliation(s)
- Darko Kresovic
- Merck Stiftungsprofessur für Molekulare Biotechnologie, Fachbereich Biowissenschaften, Goethe Universität Frankfurt, 60438 Frankfurt am Main, Germany
| | - Florence Schempp
- Merck Stiftungsprofessur für Molekulare Biotechnologie, Fachbereich Biowissenschaften, Goethe Universität Frankfurt, 60438 Frankfurt am Main, Germany
| | - Zakaria Cheikh-Ali
- Merck Stiftungsprofessur für Molekulare Biotechnologie, Fachbereich Biowissenschaften, Goethe Universität Frankfurt, 60438 Frankfurt am Main, Germany
| | - Helge B Bode
- Merck Stiftungsprofessur für Molekulare Biotechnologie, Fachbereich Biowissenschaften, Goethe Universität Frankfurt, 60438 Frankfurt am Main, Germany ; Buchmann Institute for Molecular Life Sciences (BMLS), Goethe Universität Frankfurt, 60438 Frankfurt am Main, Germany
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23
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Mineno M, Sawai Y, Kanno K, Sawada N, Mizufune H. A rapid and diverse construction of 6-substituted-5,6-dihydro-4-hydroxy-2-pyrones through double Reformatsky reaction. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.10.079] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Kim RK, Suh Y, Lim EJ, Yoo KC, Lee GH, Cui YH, Son A, Hwang E, Uddin N, Yi JM, Kang SG, Lee SJ. A novel 2-pyrone derivative, BHP, impedes oncogenic KRAS-driven malignant progression in breast cancer. Cancer Lett 2013; 337:49-57. [PMID: 23707634 DOI: 10.1016/j.canlet.2013.05.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2013] [Revised: 04/12/2013] [Accepted: 05/07/2013] [Indexed: 12/27/2022]
Abstract
Elevated KRAS expression has been frequently associated with cancer progression including breast cancer; however, therapeutic approaches targeting KRAS have been widely unsuccessful and KRAS mutant cancers remain unsolved problem in cancer therapy. In this study, we found that a new 2-pyrone derivative, 5-bromo-3-(3-hydroxyprop-1-ynyl)-2H-pyran-2-one (BHP) can block KRAS-driven breast cancer progression. Importantly, treatment with BHP effectively suppressed the migratory and invasive properties along with epithelial-mesenchymal transition (EMT) in MDA-MB231 breast cancer cells that carry oncogenic KRAS and mesenchymal malignant phenotypes. In parallel, BHP also sensitized the cells to anticancer treatment. Consistently, forced-expression of oncogenic KRAS bestowed the migratory and invasive properties, mesenchymal transition and resistance to anticancer treatment into normal human mammalian breast cells MCF10A and relatively non-malignant MCF7 and SK-BR3 breast cancer cells; however, treatment with BHP blocked those KRAS-induced malignant phenotypes. Notably, BHP interfered the interaction of KRAS with Raf-1 in concentration-dependent manner, thereby blocking the downstream effectors of KRAS signaling that is PI3K/AKT and ERK. Taken together, our findings indicate that the BHP, an α-pyrone derivative, suppresses malignant breast cancer progression by targeting of oncogenic KRAS signaling pathways.
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Affiliation(s)
- Rae-Kwon Kim
- Department of Chemistry, Research Institute for Natural Sciences, Hanyang University, Seoul 133-791, Republic of Korea
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Fu P, Liu P, Gong Q, Wang Y, Wang P, Zhu W. α-Pyrones from the marine-derived actinomycete Nocardiopsis dassonvillei subsp. dassonvillei XG-8-1. RSC Adv 2013. [DOI: 10.1039/c3ra43656j] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
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26
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Kim RK, Kim MJ, Yoon CH, Lim EJ, Yoo KC, Lee GH, Kim YH, Kim H, Jin YB, Lee YJ, Cho CG, Oh YS, Gye MC, Suh Y, Lee SJ. A new 2-pyrone derivative, 5-bromo-3-(3-hydroxyprop-1-ynyl)-2H-pyran-2-one, suppresses stemness in glioma stem-like cells. Mol Pharmacol 2012; 82:400-7. [PMID: 22648970 DOI: 10.1124/mol.112.078402] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Glioma cells with stem cell properties, termed glioma stem-like cells (GSCs), have been linked to tumor formation, maintenance, and progression and are responsible for the failure of chemotherapy and radiotherapy. Because conventional glioma treatments often fail to eliminate GSCs completely, residual surviving GSCs are able to repopulate the tumor. Compounds that target GSCs might be helpful in overcoming resistance to anticancer treatments in human brain tumors. In this study, we showed that 5-bromo-3-(3-hydroxyprop-1-ynyl)-2H-pyran-2-one (BHP), a new 2-pyrone derivative, suppressed the maintenance of the GSC population in both a glioma cell line and patient-derived glioma cells. Treatment of GSCs with BHP effectively inhibited sphere formation and suppressed the CD133(+) cell population. Treatment with BHP also suppressed expression of the stemness-regulating transcription factors Sox2, Notch2, and β-catenin in sphere-cultured glioma cells. Treatment of GSCs with BHP significantly suppressed two fundamental characteristics of cancer stem cells: self-renewal and tumorigenicity. BHP treatment dramatically inhibited clone-forming ability at the single-cell level and suppressed in vivo tumor formation. BHP markedly inhibited both phosphoinositide 3-kinase/Akt and Ras/Raf-1/extracellular signal-regulated kinase signaling, which suggests that one or both of these pathways are involved in BHP-induced suppression of GSCs. In addition, treatment with BHP effectively sensitized GSCs to chemotherapy and radiotherapy. Taken together, these results indicate that BHP targets GSCs and enhances their sensitivity to anticancer treatments and suggest that BHP treatment may be useful for treating brain tumors by eliminating GSCs.
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Affiliation(s)
- Rae-Kwon Kim
- Department of Chemistry and Research Institute for Natural Sciences, Hanyang University, Seoul, Korea
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A new 2-pyrone derivative, 5-bromo-3-(3-hydroxyprop-1-ynyl)-2H-pyran-2-one, synergistically enhances radiation sensitivity in human cervical cancer cells. Anticancer Drugs 2012; 23:43-50. [DOI: 10.1097/cad.0b013e32834a66ef] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Park HB, Yang HO, Lee KR, Kwon HC. Gombapyrones E and F, New α-Pyrone Polyenes Produced by Streptomyces sp. KMC-002. Molecules 2011. [PMCID: PMC6263278 DOI: 10.3390/molecules16053519] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Microorganism-derived polyene polyketides have been shown to display a variety of biological activities and have attracted great interest due to their structurally intriguing chemical diversity. Two new polyenes were isolated from a culture broth of Streptomyces sp. KMC-002 obtained from a soil sample in an abandoned mine. The structures of these compounds were determined to be α-pyrone-containing polyene analogues through analyses of HRFABMS, UV and NMR data, and were named Gombapyrones E (1) and F (2). Gombapyrone E (1) showed antibacterial activity against Micrococcus luteus, Enterococcus hirae, Staphylococcus aureus and MRSA.
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Affiliation(s)
- Hyun Bong Park
- Natural Medicine Center, Korea Institute of Science and Technology (KIST), Gangneung, Gangwon-do 210-340, Korea; (H.B.P.); (H.O.Y.)
- Natural Products Laboratory, School of Pharmacy, Sungkyunkwan University, Suwon 440-746, Korea; (K.R.L.)
| | - Hyun Ok Yang
- Natural Medicine Center, Korea Institute of Science and Technology (KIST), Gangneung, Gangwon-do 210-340, Korea; (H.B.P.); (H.O.Y.)
| | - Kang Ro Lee
- Natural Products Laboratory, School of Pharmacy, Sungkyunkwan University, Suwon 440-746, Korea; (K.R.L.)
| | - Hak Cheol Kwon
- Natural Medicine Center, Korea Institute of Science and Technology (KIST), Gangneung, Gangwon-do 210-340, Korea; (H.B.P.); (H.O.Y.)
- Author to whom correspondence should be addressed; ; Tel.: +82-33-650-3504; Fax: +82-33-650-7199
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Loughlin WA, Tyndall JDA, Glenn MP, Hill TA, Fairlie DP. Update 1 of: Beta-Strand Mimetics. Chem Rev 2011; 110:PR32-69. [DOI: 10.1021/cr900395y] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Wendy A. Loughlin
- School of Science, Nathan Campus, Griffith University, Brisbane, QLD 4111, Australia, and Division of Chemistry and Structural Biology, Institute for Molecular Bioscience, University of Queensland, Brisbane, QLD 4072, Australia This is a Chemical Reviews Perennial Review. The root paper of this title was published in Chem. Rev. 2004, 104 (12), 6085−6117, DOI: 10.1021/cr040648k; Published (Web) Nov. 4, 2004. Updates to the text appear in red type
| | - Joel D. A. Tyndall
- School of Science, Nathan Campus, Griffith University, Brisbane, QLD 4111, Australia, and Division of Chemistry and Structural Biology, Institute for Molecular Bioscience, University of Queensland, Brisbane, QLD 4072, Australia This is a Chemical Reviews Perennial Review. The root paper of this title was published in Chem. Rev. 2004, 104 (12), 6085−6117, DOI: 10.1021/cr040648k; Published (Web) Nov. 4, 2004. Updates to the text appear in red type
| | - Matthew P. Glenn
- School of Science, Nathan Campus, Griffith University, Brisbane, QLD 4111, Australia, and Division of Chemistry and Structural Biology, Institute for Molecular Bioscience, University of Queensland, Brisbane, QLD 4072, Australia This is a Chemical Reviews Perennial Review. The root paper of this title was published in Chem. Rev. 2004, 104 (12), 6085−6117, DOI: 10.1021/cr040648k; Published (Web) Nov. 4, 2004. Updates to the text appear in red type
| | - Timothy A. Hill
- School of Science, Nathan Campus, Griffith University, Brisbane, QLD 4111, Australia, and Division of Chemistry and Structural Biology, Institute for Molecular Bioscience, University of Queensland, Brisbane, QLD 4072, Australia This is a Chemical Reviews Perennial Review. The root paper of this title was published in Chem. Rev. 2004, 104 (12), 6085−6117, DOI: 10.1021/cr040648k; Published (Web) Nov. 4, 2004. Updates to the text appear in red type
| | - David P. Fairlie
- School of Science, Nathan Campus, Griffith University, Brisbane, QLD 4111, Australia, and Division of Chemistry and Structural Biology, Institute for Molecular Bioscience, University of Queensland, Brisbane, QLD 4072, Australia This is a Chemical Reviews Perennial Review. The root paper of this title was published in Chem. Rev. 2004, 104 (12), 6085−6117, DOI: 10.1021/cr040648k; Published (Web) Nov. 4, 2004. Updates to the text appear in red type
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Kidwai M, Poddar R, Diwaniyan S, Kuhad RC. Laccase from Basidiomycetous Fungus–Catalyzed Synthesis of Substituted Benzopyranocoumarins via Domino Reaction. SYNTHETIC COMMUN 2011. [DOI: 10.1080/00397911003637484] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Mazaahir Kidwai
- a Green Research Laboratory, Department of Chemistry , University of Delhi , Delhi , India
| | - Roona Poddar
- a Green Research Laboratory, Department of Chemistry , University of Delhi , Delhi , India
| | - Sarika Diwaniyan
- b Lignocellulose Biotechnology Laboratory, Department of Microbiology , University of Delhi South Campus , Delhi , India
| | - Ramesh Chander Kuhad
- b Lignocellulose Biotechnology Laboratory, Department of Microbiology , University of Delhi South Campus , Delhi , India
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31
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Modification and biological evaluation of novel 4-hydroxy-pyrone derivatives as non-peptidic HIV-1 protease inhibitors. Med Chem Res 2010. [DOI: 10.1007/s00044-010-9307-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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32
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New synthesis and anti-HIV and antiviral properties of 3-arylsulfonyl derivatives of 4-ydroxycoumarin and 4-hydroxyquinolone. Pharm Chem J 2008. [DOI: 10.1007/s11094-008-0103-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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33
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Chohan ZH, Shaikh AU, Rauf A, Supuran CT. Antibacterial, antifungal and cytotoxic properties of novel N-substituted sulfonamides from 4-hydroxycoumarin. J Enzyme Inhib Med Chem 2008; 21:741-8. [PMID: 17252948 DOI: 10.1080/14756360600810340] [Citation(s) in RCA: 78] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Abstract
A new series of 4-({[2, 4-dioxo-2H-chromen-3 (4H)-ylidene] methyl} amino) sulfonamides have been obtained by the condensation reaction of 4-hydroxycoumarin with various sulfonamides (sulfanilamide, sulfaguanidine, p-aminomethyl-sufanilamide, p-aminoethylsufanilamide, sulfathiazole, sulfamethoxazole, sulfamethazine and 4-[(2-amino-4-pyrimidinyl) amino] benzenesulfonamide) in the presence of an excess of ethylorthoformate. These compounds were screened for their in-vitro antibacterial activity against four Gram-negative (E. coli, S. flexneri, P. aeruginosa and S. typhi) and two Gram-positive (B. subtilis and S. aureus) bacterial strains and for in-vitro antifungal activity against T. longifusus, C. albicans, A. flavus, M. canis, F. solani and C. glaberata. Results revealed that a significant antibacterial activity was observed by compounds (4) and (5), (6) and (8) against two Gram-negative, (P. aeruginosa and S. typhi) and two Gram-positive (B. subtilis and S. aureus) species, respectively. Of these (4) was found to be the most active. Similarly, for antifungal activity compounds (3) and (8) showed significant activity against M. canis and, (6) and (8) against F. solani. The brine shrimp bioassay was also carried out to study their in-vitro cytotoxic properties and only two compounds, (4) and (8) possessing LD50 = 2.9072 x 10(-4) and 3.2844 x 10(-4) M, respectively, displayed potent cytotoxic activity against Artemia salina
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Affiliation(s)
- Zahid H Chohan
- Department of Chemistry, Bahauddin Zakariya University, Multan 60800, Pakistan.
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Zhong W, Zhao Y, Su W. An efficient synthesis of 3-arylmethyl-7,8-dihydro-6H-chromene-2,5-diones from Baylis–Hillman adduct acetates under solvent-free conditions. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.04.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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35
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Chitrapriya N, Mahalingam V, Zeller M, Jayabalan R, Swaminathan K, Natarajan K. Synthesis, crystal structure and biological activities of dehydroacetic acid complexes of Ru(II) and Ru(III) containing PPh3/AsPh3. Polyhedron 2008. [DOI: 10.1016/j.poly.2007.11.039] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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36
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Sun CL, Pang RF, Zhang H, Yang M. Design, synthesis, and biological evaluation of novel 4-hydroxypyrone derivatives as HIV-1 protease inhibitors. Bioorg Med Chem Lett 2005; 15:3257-62. [PMID: 15923115 DOI: 10.1016/j.bmcl.2005.04.057] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2005] [Accepted: 04/26/2005] [Indexed: 10/25/2022]
Abstract
Twenty-four 4-hydroxypyrone derivatives were synthesized with a facile synthetic method to develop novel HIV protease inhibitors. Most of them were shown to display good antiviral activities in SIV-infected CEM cells. The introduction of alpha-naphthylmethyl group to C-6 of 5,6-dihydropyran-2-ones led to an effective antiviral compound that showed an EC(50) value at 1.7 microM with a therapeutic index of 46.
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Affiliation(s)
- Chun-Lai Sun
- National Research Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100083, People's Republic of China
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37
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McGlacken GP, Fairlamb IJS. 2-Pyrone natural products and mimetics: isolation, characterisation and biological activity. Nat Prod Rep 2005; 22:369-85. [PMID: 16010346 DOI: 10.1039/b416651p] [Citation(s) in RCA: 268] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The review summarises natural products containing the 2-pyrone moiety. An emphasis has been placed upon the biological activity associated with 2-pyrones, particularly with respect to potential therapeutic or anti-microbial agents. Where appropriate, non-natural 2-pyrone analogues are discussed, particularly those derived from natural product lead compounds.
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Affiliation(s)
- Gerard P McGlacken
- Department of Chemistry, University of York, Heslington, York, UK YO10 5DD
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38
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Khan KM, Saify ZS, Khan MZ, Choudhary IM, Perveen S, Chohan ZH, Supuran CT. Synthesis of coumarin derivatives with cytotoxic, antibacterial and antifungal activity. J Enzyme Inhib Med Chem 2005; 19:373-9. [PMID: 15558956 DOI: 10.1080/14756360409162453] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
The synthesis and selective biological screening of 7-hydroxy-4-methyl-2H-chromen-2-one (2), 7-hydroxy-4,5-dimethyl-2H-chromen-2-one (15) and some of their derivatives were carried out. Compound 13 was found to be most potent cytotoxic agent with LD50 = 126.69 microg/ml. In antibacterial assay the compounds showed a broad spectrum of activities. Compound 11 exhibited a very high degree of plant growth inhibition at three levels of concentration. Compound 4 showed very promising antifungal activity against Candida albicans. Compounds 12 and 13 demonstrated excellent antioxidant activity.
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Affiliation(s)
- Khalid Mohammed Khan
- HEJ Research Institute of Chemistry, International Centre for Chemical Sciences, University of Karachi, Karachi-75270, Pakistan
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39
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Affiliation(s)
- Wendy A Loughlin
- School of Science, Nathan Campus, Griffith University, Brisbane, QLD 4111, Australia.
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40
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Jung JC, Lee JH, Oh S, Lee JG, Park OS. Synthesis and antitumor activity of 4-hydroxycoumarin derivatives. Bioorg Med Chem Lett 2004; 14:5527-31. [PMID: 15482917 DOI: 10.1016/j.bmcl.2004.09.009] [Citation(s) in RCA: 74] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2004] [Accepted: 09/03/2004] [Indexed: 11/25/2022]
Abstract
A series of 4-hydroxycoumarin derivatives was prepared and evaluated for antitumor activity. The key fragments were 2a-c, 5c, 12b, 13b, 17, and 18 which were prepared via dianion ring cyclization, Friedel-Crafts acylation, and Reformatsky reaction. Compound 20b showed the most potent antitumor activity among the total 12 derivatives and compounds 19a and 19b exhibited efficacy comparable to etoposide in vitro antitumor activity.
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Affiliation(s)
- Jae-Chul Jung
- Department of Medicinal Chemistry, School of Pharmacy, University of Mississippi, PO Box 1848, University, MS 38677-1848, USA
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41
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Synthesis and characterization of two dehydroacetic acid derivatives and molybdenum(V) complexes: an NMR and crystallographic study. J Mol Struct 2004. [DOI: 10.1016/j.molstruc.2004.05.025] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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42
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Cindrić M, Vrdoljak V, Kajfež Novak T, Strukan N, Brbot-Šaranović A, Novak P, Kamenar B. Synthesis, characterization and crystal structures of molybdenum(VI) and (V) complexes with differently N-substituted β′-hydroxy-β-enaminones. Polyhedron 2004. [DOI: 10.1016/j.poly.2004.03.025] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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43
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Vickrey JF, Logsdon BC, Proteasa G, Palmer S, Winters MA, Merigan TC, Kovari LC. HIV-1 protease variants from 100-fold drug resistant clinical isolates: expression, purification, and crystallization. Protein Expr Purif 2003; 28:165-72. [PMID: 12651121 DOI: 10.1016/s1046-5928(02)00650-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
High-resolution X-ray crystallographic structures of HIV-1 protease clinical variants complexed with licensed inhibitors are essential to understanding the fundamental cause of protease drug resistance. There is a need for structures of naturally evolved HIV-1 proteases from patients failing antiretroviral therapy. Here, we report the expression, purification, and crystallization of clinical isolates of HIV-1 protease that have been characterized to be more than 100 times less susceptible to US FDA approved protease inhibitors.
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Affiliation(s)
- John F Vickrey
- Department of Biochemistry and Molecular Biology, Wayne State University School of Medicine, 540 E. Canfield Avenue, Detroit, MI 48201, USA
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Abstract
Flavonoids are plant pigments that are synthesised from phenylalanine, generally display marvelous colors known from flower petals, mostly emit brilliant fluorescence when they are excited by UV light, and are ubiquitous to green plant cells. The flavonoids are used by botanists for taxonomical classification. They regulate plant growth by inhibition of the exocytosis of the auxin indolyl acetic acid, as well as by induction of gene expression, and they influence other biological cells in numerous ways. Flavonoids inhibit or kill many bacterial strains, inhibit important viral enzymes, such as reverse transcriptase and protease, and destroy some pathogenic protozoans. Yet, their toxicity to animal cells is low. Flavonoids are major functional components of many herbal and insect preparations for medical use, e.g., propolis (bee's glue) and honey, which have been used since ancient times. The daily intake of flavonoids with normal food, especially fruit and vegetables, is 1-2 g. Modern authorised physicians are increasing their use of pure flavonoids to treat many important common diseases, due to their proven ability to inhibit specific enzymes, to simulate some hormones and neurotransmitters, and to scavenge free radicals.
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Affiliation(s)
- Bent H Havsteen
- Department of Biochemistry, University of Kiel, Olshausenstrasse 40, D-24098, Kiel, Germany.
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45
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Kirkiacharian S, Thuy DT, Sicsic S, Bakhchinian R, Kurkjian R, Tonnaire T. Structure-activity relationships of some 3-substituted-4-hydroxycoumarins as HIV-1 protease inhibitors. FARMACO (SOCIETA CHIMICA ITALIANA : 1989) 2002; 57:703-8. [PMID: 12385519 DOI: 10.1016/s0014-827x(02)01264-8] [Citation(s) in RCA: 160] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The screening of the HIV-1 protease (PR) inhibitory activity (IC-50) of various substituted 3-phenyl-4-hydroxycoumarins, 3-benzyl-4-hydroxycoumarins, 3-phenoxy-4-hydroxy-coumarins, 3-benzenesulfonyl-4-hydroxycoumarins and 3-(7-coumarinyloxy)-4-hydroxycoumarins was performed. The data indicate the importance of substituents at positions 5 and 7 of the coumarin ring on the inhibitory potency of the HIV-1-PR.
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Affiliation(s)
- Serge Kirkiacharian
- Laboratoire de Chimie Thérapeutique, Faculté de Pharmacie de Paris-Sud, Chatenay Malabry, France.
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46
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Cindrić M, Vrdoljak V, Strukan N, Tepeš P, Novak P, Brbot-Šaranović A, Giester G, Kamenar B. New Dinuclear Molybdenum(V) Complexes With β′-Hydroxy-β-enaminones Containing a 4-Hydroxy-2-pyrone Ring. Eur J Inorg Chem 2002. [DOI: 10.1002/1099-0682(200208)2002:8<2128::aid-ejic2128>3.0.co;2-j] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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47
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Branchadell V, Moreno-Mañas M, Pleixats R. Theoretical Study on the Regioselectivity of Nucleophilic Attack in Silyl-Substituted (Diphosphino)(η3-allyl)palladium Cations. Organometallics 2002. [DOI: 10.1021/om0106940] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Vicenç Branchadell
- Department of Chemistry, Universitat Autònoma de Barcelona, Cerdanyola, 08193-Barcelona, Spain
| | - Marcial Moreno-Mañas
- Department of Chemistry, Universitat Autònoma de Barcelona, Cerdanyola, 08193-Barcelona, Spain
| | - Roser Pleixats
- Department of Chemistry, Universitat Autònoma de Barcelona, Cerdanyola, 08193-Barcelona, Spain
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48
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Hovorka SW, Hageman MJ, Schöneich C. Oxidative degradation of a sulfonamide-containing 5,6-dihydro-4-hydroxy-2-pyrone in aqueous/organic cosolvent mixtures. Pharm Res 2002; 19:538-45. [PMID: 12033392 DOI: 10.1023/a:1015116317269] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
PURPOSE To predict the oxidative stability of a sulfonamide-containing 5,6-dihydro-4-hydroxy-2-pyrone in lipid-based delivery systems, N-(3-(1[(3alpha,6R)-4-hydroxy-2-oxo-6-phenyl-6-propyltetrahydro-2H-pyran-3-yl]propyl)phenyl)-5-(trifluoromethyl)-2-pyridinylsulfonamide (DHP) was oxidized by peroxides and peroxyl radicals in binary mixtures of water and organic cosolvents. METHODS DHP was oxidized by hydrogen peroxide, t-butylhydroperoxide, or peroxyl radicals derived from the thermal decomposition of 2,2'-azobis(2-amidinopropane) dihydrochloride (AAPH) in 40% (v/v) organic cosolvent and 5 mM buffer at or near 40 degrees C. Interactions between DHP and ]propane sulfonic acid and imidazole) and DH- were assessed by 1H-NMR spectroscopy. The formation of CO likely involves a free radical mechanism. RESULTS The reaction of DHP with peroxides in 40% (v/v) acetonitrile yields epimeric monohydroxylation products, R-OH and S-OH, at C-3 of the pyrone ring, and a keto-derivative (CO). Hydroxylation rates depend on the protonation state of DHP, and the nature of buffer and the organic cosolvent. Organonitriles accelerate the oxidation through formation of peroxycarboximidic acid. Peroxyl radicals do not yield significant amounts of R/S-OH or CO. CONCLUSIONS. The hydrogen peroxide-induced degradation of DHP in the presence of acetonitrile involves two reactions, hydroxylation and carbonyl formatin. Hydroxylation proceeds via nucleophilic attack by the monodeprotonated form of DHP (DH-) on peroxycarboximidic acid. The oxidation rate is slowed by ion pairing between nitrogen-containing buffers ([3-N-morpholino]propane sulfonic acid and imidazole) and DH-. The formation of CO likely involves a free radical mechanism.
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Affiliation(s)
- Susan W Hovorka
- Department of Pharmaceutical Chemistry, University of Kansas, Lawrence 66047, USA
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49
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50
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Cindrić M, Vrdoljak V, Kajfež T, Novak P, Brbot-Šaranović A, Strukan N, Kamenar B. Synthesis and characterization of new dinuclear complexes of molybdenum(V) with β′-hydroxy-β-enaminones. Inorganica Chim Acta 2002. [DOI: 10.1016/s0020-1693(01)00666-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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