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Begum AF, Balasubramanian KK, Bhagavathy S. 3‐Arylidene‐4‐Chromanones and 3‐arylidene‐4‐thiochromanones: Versatile Synthons towards the Synthesis of Complex Heterocycles. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Ayisha F Begum
- B S Abdur Rahman Crescent Institute of Science & Technology Chemistry 600048 Chennai INDIA
| | | | - Shanmugasundaram Bhagavathy
- B S Abdur Rahman Crescent Institute of Science & Technology Chemistry Seethakathi EstateVandalur 600048 Chennai INDIA
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2
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El Malah T, Shamroukh AH, Kotb ER, Soliman HA, Mahmoud K, Hegab MI. Chemical and anticancer activity studies for some 3-chloro-3-chlorosulfenyl-4′-methylspiro[chroman-2,1′-cyclohexane]-4-ones. PHOSPHORUS SULFUR 2021. [DOI: 10.1080/10426507.2021.1947275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Tamer El Malah
- Photochemistry Department, National Research Centre, Giza, Egypt
| | | | - Eman R. Kotb
- Photochemistry Department, National Research Centre, Giza, Egypt
| | - Hanan A. Soliman
- Photochemistry Department, National Research Centre, Giza, Egypt
| | - Khaled Mahmoud
- Drug Bioassay Cell Culture Laboratory, National Research Centre, Giza, Egypt
| | - Mohamed I. Hegab
- Photochemistry Department, National Research Centre, Giza, Egypt
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3
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Begum AF, Balasubramanian KK, Shanmugasundaram B. Acid activated montmorillonite K-10 mediated intramolecular acylation: Simple and convenient synthesis of 4-chromanones. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153372] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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4
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Nahar L, Talukdar AD, Nath D, Nath S, Mehan A, Ismail FMD, Sarker SD. Naturally Occurring Calanolides: Occurrence, Biosynthesis, and Pharmacological Properties Including Therapeutic Potential. Molecules 2020; 25:E4983. [PMID: 33126458 PMCID: PMC7663239 DOI: 10.3390/molecules25214983] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 10/23/2020] [Accepted: 10/26/2020] [Indexed: 12/11/2022] Open
Abstract
Calanolides are tetracyclic 4-substituted dipyranocoumarins. Calanolide A, isolated from the leaves and twigs of Calophyllum lanigerum var. austrocoriaceum (Whitmore) P. F. Stevens, is the first member of this group of compounds with anti-HIV-1 activity mediated by reverse transcriptase inhibition. Calanolides are classified pharmacologically as non-nucleoside reverse transcriptase inhibitors (NNRTI). There are at least 15 naturally occurring calanolides distributed mainly within the genus Calophyllum, but some of them are also present in the genus Clausena. Besides significant anti-HIV properties, which have been exploited towards potential development of new NNRTIs for anti-HIV therapy, calanolides have also been found to possess anticancer, antimicrobial and antiparasitic potential. This review article provides a comprehensive update on all aspects of naturally occurring calanolides, including their chemistry, natural occurrence, biosynthesis, pharmacological and toxicological aspects including mechanism of action and structure activity relationships, pharmacokinetics, therapeutic potentials and available patents.
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Affiliation(s)
- Lutfun Nahar
- Laboratory of Growth Regulators, Institute of Experimental Botany ASCR & Palacký University, Šlechtitelů 27, 78371 Olomouc, Czech Republic
| | - Anupam Das Talukdar
- Department of Life Science and Bioinformatics, Assam University, Silchar, Assam 788011, India;
| | - Deepa Nath
- Department of Botany, Gurucharan College, Silchar, Assam 788004, India;
| | - Sushmita Nath
- Centre for Natural Products Discovery, School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, James Parsons Building, Byrom Street, Liverpool L3 3AF, UK; (S.N.); (F.M.D.)
| | - Aman Mehan
- School of Clinical Medicine, University of Cambridge, Cambridge CB2 OSP, UK;
| | - Fyaz M. D. Ismail
- Centre for Natural Products Discovery, School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, James Parsons Building, Byrom Street, Liverpool L3 3AF, UK; (S.N.); (F.M.D.)
| | - Satyajit D. Sarker
- Centre for Natural Products Discovery, School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, James Parsons Building, Byrom Street, Liverpool L3 3AF, UK; (S.N.); (F.M.D.)
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5
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Kysil A, Biitseva A, Bugera O, Yegorova T, Voitenko Z. Synthesis of 2-(1,2,4-oxadiazol-5-yl)-2,3-dihydro-4H-chromen-4-ones. FRENCH-UKRAINIAN JOURNAL OF CHEMISTRY 2020. [DOI: 10.17721/fujcv8i2p176-182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Simple and efficient synthesis of 2-(1,2,4-oxadiazol-5-yl)-2,3-dihydro-4H-chromen-4-ones is elaborated. The method relies on CDI-mediated cyclocondensation of substituted 4-oxochromane-2-carboxylic acids and amidoximes. The protocol allows the preparation of 2-oxadiazolylchromanones decorated with two pharmacophores (2,3-dihydro-4H-chromen-4-one and 1,2,4-oxadiazole) that are in high demand in drug discovery.
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Lemos LMS, Miyajima F, Castilho GRC, Martins DTO, Pritchard DM, Burkitt MD. Hexane Extracts of Calophyllum brasiliense Inhibit the Development of Gastric Preneoplasia in Helicobacter felis Infected INS-Gas Mice. Front Pharmacol 2017; 8:92. [PMID: 28289390 PMCID: PMC5326747 DOI: 10.3389/fphar.2017.00092] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2016] [Accepted: 02/13/2017] [Indexed: 01/26/2023] Open
Abstract
Objectives: Indigenous Latin American populations have used extracts from Calophyllum brasiliense, a native hardwood, to treat gastrointestinal symptoms for generations. The hexane extract of Calophyllum brasiliense stem bark (HECb) protects against ethanol-mediated gastric ulceration in Swiss–Webster mice. We investigated whether HECb inhibits the development of gastric epithelial pathology following Helicobacter felis infection of INS-Gas mice. Materials and Methods: Groups of five male, 6-week-old INS-Gas mice were colonized with H. felis by gavage. From 2 weeks after colonization their drinking water was supplemented with 2% Tween20 (vehicle), low dose HECb (33 mg/L, lHECb) or high dose HECb (133 mg/L, hHECb). Equivalent uninfected groups were studied. Animals were culled 6 weeks after H. felis colonization. Preneoplastic pathology was quantified using established histological criteria. Gastric epithelial cell turnover was quantified by immunohistochemistry for Ki67 and active-caspase 3. Cytokines were quantified using an electrochemiluminescence assay. Results: Vehicle-treated H. felis infected mice exhibited higher gastric atrophy scores than similarly treated uninfected mice (mean atrophy score 5.6 ± 0.87 SEM vs. 2.2 ± 0.58, p < 0.01). The same pattern was observed following lHECb. Following hHECb treatment, H. felis status did not significantly alter atrophy scores. Gastric epithelial apoptosis was not altered by H. felis or HECb administration. Amongst vehicle-treated mice, gastric epithelial cell proliferation was increased 2.8-fold in infected compared to uninfected animals (p < 0.01). Administration of either lHECb or hHECb reduced proliferation in infected mice to levels similar to uninfected mice. A Th17 polarized response to H. felis infection was observed in all infected groups. hHECb attenuated IFN-γ, IL-6, and TNF production following H. felis infection [70% (p < 0.01), 67% (p < 0.01), and 41% (p < 0.05) reduction vs. vehicle, respectively]. Conclusion: HECb modulates gastric epithelial pathology following H. felis infection of INS-Gas mice. Further studies are indicated to confirm the mechanisms underlying these observations.
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Affiliation(s)
- Larissa M S Lemos
- Gastroenterology Research Unit, Department of Cellular and Molecular Physiology, Institute of Translational Medicine, University of LiverpoolLiverpool, UK; Department of Basic Sciences in Health, Federal University of Mato GrossoMato Grosso, Brazil
| | - Fabio Miyajima
- Department of Molecular and Clinical Pharmacology, Institute of Translational Medicine, University of LiverpoolLiverpool, UK; Group of Neuropharmacology, Drug Research and Development Center, Federal University of CearáFortaleza, Brazil
| | - Geovane R C Castilho
- Department of Basic Sciences in Health, Federal University of Mato Grosso Mato Grosso, Brazil
| | | | - D Mark Pritchard
- Gastroenterology Research Unit, Department of Cellular and Molecular Physiology, Institute of Translational Medicine, University of Liverpool Liverpool, UK
| | - Michael D Burkitt
- Gastroenterology Research Unit, Department of Cellular and Molecular Physiology, Institute of Translational Medicine, University of Liverpool Liverpool, UK
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Matsui JK, Molander GA. Direct α-Arylation/Heteroarylation of 2-Trifluoroboratochromanones via Photoredox/Nickel Dual Catalysis. Org Lett 2017; 19:436-439. [PMID: 28078893 PMCID: PMC5295361 DOI: 10.1021/acs.orglett.6b03448] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
![]()
Utilizing
photoredox/nickel dual catalysis, diverse flavanones
have been synthesized by coupling novel 2-trifluoroboratochromanone
building blocks with aryl and heteroaryl bromide partners. The newly
reported trifluoroboratochromanones can be easily accessed
from the corresponding chromones on multigram scale. This represents
a general route for accessing natural and unnatural flavanones that
were previously formed through a synthetically more restrictive ring
closure route from chalcone precursors.
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Affiliation(s)
- Jennifer K Matsui
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania , 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, United States
| | - Gary A Molander
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania , 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, United States
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Chopade AU, Chopade MU, Chanda BM, Sawaikar DD, Sonawane KB, Gurjar MK. A synthesis of (±)-thia-calanolide A, its resolution and in vitro biological evaluation. ARAB J CHEM 2016; 9:S1597-S1602. [PMID: 38620243 PMCID: PMC7148711 DOI: 10.1016/j.arabjc.2012.04.027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2011] [Accepted: 04/21/2012] [Indexed: 11/01/2022] Open
Abstract
A synthesis of (±)-thia-calanolide A 3 has been successfully accomplished starting from 3,5-dimethoxythiophenol 4, in six steps in an overall yield of 4.5%. The key reaction involved Friedel-Crafts tigloylation of 5,7-dihydroxy-4-n-propyl thiocoumarin 6 employing an appropriate solvent of CS2-PhNO2 in a ratio of 7:3. In its biological evaluation for anti-HIV activity, (±)-thia-calanolide A 3 demonstrated comparatively less activity with calanolide A and its synthetic analogue aza-calanolide. Further, (±)-3 has been resolved by chiral HPLC to (+) and (-)-3.
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Affiliation(s)
- Anil U. Chopade
- Division of Organic Chemistry, National Chemical Laboratory, Pune 411008, India
| | | | - Bhanu M. Chanda
- Division of Organic Chemistry, National Chemical Laboratory, Pune 411008, India
| | - Dilip D. Sawaikar
- Division of Organic Chemistry, National Chemical Laboratory, Pune 411008, India
| | - Kiran B. Sonawane
- Division of Organic Chemistry, National Chemical Laboratory, Pune 411008, India
| | - Mukund K. Gurjar
- Division of Organic Chemistry, National Chemical Laboratory, Pune 411008, India
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Natural product-inspired rational design, synthesis and biological evaluation of 2,3-dihydropyrano[2,3- f ]chromen-4(8 H )-one based hybrids as potential mitochondrial apoptosis inducers. Eur J Med Chem 2016; 122:302-318. [DOI: 10.1016/j.ejmech.2016.06.044] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Revised: 05/30/2016] [Accepted: 06/24/2016] [Indexed: 12/25/2022]
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Synthesis and cytotoxic evaluation of some new[1,3]dioxolo[4,5-g]chromen-8-one derivatives. ACTA ACUST UNITED AC 2014; 22:41. [PMID: 24887061 PMCID: PMC4019946 DOI: 10.1186/2008-2231-22-41] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2013] [Accepted: 04/16/2014] [Indexed: 12/03/2022]
Abstract
Background Homoisoflavonoids are naturally occurring compounds belong to flavonoid classes possessing various biological properties such as cytotoxicity. In this work, an efficient strategy for the synthesis of novel homoisoflavonoids, [1,3]dioxolo[4,5-g]chromen-8-ones, was developed and all compounds were evaluated for their cytotoxic activities on three breast cancer cell lines. Methods Our synthetic route started from benzo[d][1,3]dioxol-5-ol which was reacted with 3-bromopropanoic acid followed by the reaction of oxalyl chloride to afford 6,7-dihydro-8H-[1,3]dioxolo[4,5-g]chromen-8-one. The aldol condensation of the later compound with aromatic aldehydes led to the formation of the title compounds. Five novel derivatives 4a-e were tested for their cytotoxic activity against three human breast cancer cell lines including MCF-7, T47D, and MDA-MB-231 using the MTT assay. Results Among the synthesized compounds, 7-benzylidene-6,7-dihydro-8H-[1,3]dioxolo[4,5-g]chromen-8-one (4a) exhibited the highest activity against three cell lines. Also the analysis of acridine orange/ethidium bromide staining results revealed that 7-benzylidene-6,7-dihydro-8H-[1,3]dioxolo[4,5-g]chromen-8-one (4a) and 7-(2-methoxybenzylidene)-6,7-dihydro-8H-[1,3]dioxolo[4,5-g]chromen-8-one (4b) induced apoptosis in T47D cell line. Conclusion Finally, the effect of methoxy group on the cytotoxicity of compounds 4b-4d was investigated in and it was revealed that it did not improve the activity of [1,3]dioxolo[4,5-g]chromen-8-ones against MCF-7, T47D, and MDA-MB-231.
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Shao Z, Wang L, Xu L, Zhao H, Xiao J. Facile synthesis of azaarene-2-substituted chromanone derivatives via tandem sp3 C–H functionalization/decarboxylation of azaarenes with 4-oxo-4H-chromene-3-carboxylic acid. RSC Adv 2014. [DOI: 10.1039/c4ra09338k] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
A facile catalyst-free tandem sp3 C–H functionalization/decarboxylation of 4-oxo-4H-chromene-3-carboxylic acid with 2-alkylazaarenes was developed, which can construct the biologically significant azaarene 2-substituted chromanones in a single step.
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Affiliation(s)
- Zhuzhou Shao
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao, China
| | - Liang Wang
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao, China
| | - Lubin Xu
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao, China
| | - Huaili Zhao
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao, China
| | - Jian Xiao
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao, China
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Shaikh MM, Koorbanally NA, Du Toit K, Ramjugernath D, Bodenstein J. 3-Bromo-chroman-4-one. Acta Crystallogr Sect E Struct Rep Online 2013; 69:o473. [PMID: 23634031 PMCID: PMC3629513 DOI: 10.1107/s1600536813005394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2013] [Accepted: 02/25/2013] [Indexed: 11/23/2022]
Abstract
The heterocyclic ring of the title compound, C9H7BrO2, obtained by bromination of 4-chromanone with copper bromide, adopts a half-chair conformation. The supramol-ecular structure is governed by a weak C-H⋯O hydrogen bond. There is also π-π stacking between symmetry-related benzene rings; the centroid-centroid distance is 3.9464 (18), the perpendicular distance between the rings is 3.4703 (11) and the offset is 1.879 Å.
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Affiliation(s)
- Mahidansha M. Shaikh
- School of Chemistry and Physics, University of Kwazulu-Natal, Private Bag X54001, Durban 4000, South Africa
| | - Neil A. Koorbanally
- School of Chemistry and Physics, University of Kwazulu-Natal, Private Bag X54001, Durban 4000, South Africa
| | - Karen Du Toit
- Discipline of Pharmaceutical Science, University of KwaZulu-Natal, Private Bag X54001, Durban 4000, South Africa
| | - Deresh Ramjugernath
- School of Engineering, University of KwaZulu-Natal, Durban 4041, South Africa
| | - Johannes Bodenstein
- Discipline of Pharmaceutical Science, University of KwaZulu-Natal, Private Bag X54001, Durban 4000, South Africa
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SIDDIQUI ZEBAN, FAROOQ FARHEEN. A practical one pot synthesis of novel 2-hydroxy-4-chromanone derivatives from 3-formylchromone. J CHEM SCI 2012. [DOI: 10.1007/s12039-012-0300-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Chiral resolution, absolute configuration assignment and biological activity of racemic diarylpyrimidine CH(OH)-DAPY as potent nonnucleoside HIV-1 reverse transcriptase inhibitors. Eur J Med Chem 2012; 53:229-34. [PMID: 22575532 DOI: 10.1016/j.ejmech.2012.04.004] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2011] [Revised: 03/30/2012] [Accepted: 04/04/2012] [Indexed: 11/20/2022]
Abstract
(+)-3a and (-)-3a were successfully separated from racemate (±)-3a by the chiral technique of supercritical fluid chromatography (SCF) with enantiomeric excess (ee%) >99% and purity >99%, and assigned for their absolute configuration as R and S, respectively, by the experimental electronic circular dichroism (ECD) spectrum and simulated ECD spectra calculated by time-dependent density functional theory (TDDFT) calculations. (+)-(R)-3a displayed excellent activity with an EC(50) of 5.3 nM against wild-type HIV-1, which was 12-fold more potent than (-)-(S)-3a. However, (-)-(S)-3a showed higher potency than (+)-(R)-3a against the double HIV-1 RT mutant (K103N+Y181C) as well as HIV-2 strain ROD. The possible reason for the difference of (R)- and (S)-3a in anti-HIV-1 activity was interpreted by molecular docking.
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Xue H, Lu X, Zheng P, Liu L, Han C, Hu J, Liu Z, Ma T, Li Y, Wang L, Chen Z, Liu G. Highly suppressing wild-type HIV-1 and Y181C mutant HIV-1 strains by 10-chloromethyl-11-demethyl-12-oxo-calanolide A with druggable profile. J Med Chem 2010; 53:1397-401. [PMID: 20050672 DOI: 10.1021/jm901653e] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We herein report a new compound: 10-chloromethyl-11-demethyl-12-oxo-calanolide A (20, EC(50) = 7.4 nM, SI = 1417), which demonstrates a druggable profile with 32.7% oral bioavailability in rat, tolerated oral single dose toxicity in mice, and especially the feature of highly efficient suppression of the wild-type HIV-1 and Y181C mutant HIV-1 at an EC(50) = 7.4 nM and EC(50) = 0.46 nM, respectively.
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Affiliation(s)
- Hai Xue
- Department of Synthetic Medicinal Chemistry, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 2 Nan Wei Road, Beijing 100050, China
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Müllebner A, Patel A, Stamberg W, Staniek K, Rosenau T, Netscher T, Gille L. Modulation of the Mitochondrial Cytochrome bc1 Complex Activity by Chromanols and Related Compounds. Chem Res Toxicol 2009; 23:193-202. [DOI: 10.1021/tx900333f] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Andrea Müllebner
- Molecular Pharmacology and Toxicology Unit, Department of Biomedical Sciences, University of Veterinary Medicine Vienna, Veterinärplatz 1, A-1210 Vienna, Austria, Department of Chemistry, University of Natural Resources and Applied Life Sciences, Muthgasse 18, A-1190 Vienna, Austria, and Research and Development, DSM Nutritional Products, P.O. Box 2676, CH-4002 Basel, Switzerland
| | - Anjan Patel
- Molecular Pharmacology and Toxicology Unit, Department of Biomedical Sciences, University of Veterinary Medicine Vienna, Veterinärplatz 1, A-1210 Vienna, Austria, Department of Chemistry, University of Natural Resources and Applied Life Sciences, Muthgasse 18, A-1190 Vienna, Austria, and Research and Development, DSM Nutritional Products, P.O. Box 2676, CH-4002 Basel, Switzerland
| | - Werner Stamberg
- Molecular Pharmacology and Toxicology Unit, Department of Biomedical Sciences, University of Veterinary Medicine Vienna, Veterinärplatz 1, A-1210 Vienna, Austria, Department of Chemistry, University of Natural Resources and Applied Life Sciences, Muthgasse 18, A-1190 Vienna, Austria, and Research and Development, DSM Nutritional Products, P.O. Box 2676, CH-4002 Basel, Switzerland
| | - Katrin Staniek
- Molecular Pharmacology and Toxicology Unit, Department of Biomedical Sciences, University of Veterinary Medicine Vienna, Veterinärplatz 1, A-1210 Vienna, Austria, Department of Chemistry, University of Natural Resources and Applied Life Sciences, Muthgasse 18, A-1190 Vienna, Austria, and Research and Development, DSM Nutritional Products, P.O. Box 2676, CH-4002 Basel, Switzerland
| | - Thomas Rosenau
- Molecular Pharmacology and Toxicology Unit, Department of Biomedical Sciences, University of Veterinary Medicine Vienna, Veterinärplatz 1, A-1210 Vienna, Austria, Department of Chemistry, University of Natural Resources and Applied Life Sciences, Muthgasse 18, A-1190 Vienna, Austria, and Research and Development, DSM Nutritional Products, P.O. Box 2676, CH-4002 Basel, Switzerland
| | - Thomas Netscher
- Molecular Pharmacology and Toxicology Unit, Department of Biomedical Sciences, University of Veterinary Medicine Vienna, Veterinärplatz 1, A-1210 Vienna, Austria, Department of Chemistry, University of Natural Resources and Applied Life Sciences, Muthgasse 18, A-1190 Vienna, Austria, and Research and Development, DSM Nutritional Products, P.O. Box 2676, CH-4002 Basel, Switzerland
| | - Lars Gille
- Molecular Pharmacology and Toxicology Unit, Department of Biomedical Sciences, University of Veterinary Medicine Vienna, Veterinärplatz 1, A-1210 Vienna, Austria, Department of Chemistry, University of Natural Resources and Applied Life Sciences, Muthgasse 18, A-1190 Vienna, Austria, and Research and Development, DSM Nutritional Products, P.O. Box 2676, CH-4002 Basel, Switzerland
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Wang HF, Cui HF, Chai Z, Li P, Zheng CW, Yang YQ, Zhao G. Asymmetric Synthesis of Fluorinated Flavanone Derivatives by an Organocatalytic Tandem Intramolecular Oxa-Michael Addition/Electrophilic Fluorination Reaction by Using Bifunctional Cinchona Alkaloids. Chemistry 2009; 15:13299-303. [PMID: 19899096 DOI: 10.1002/chem.200902303] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Hai-Feng Wang
- Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, 345 LingLing Lu, Shanghai, 200032, China
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Ibrahim MA. Novel Chromeno[2,3-b]pyridines from Basic Rearrangement of 4-Oxo-chromene-3-carbonitrile. SYNTHETIC COMMUN 2009. [DOI: 10.1080/00397910902788141] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Magdy A. Ibrahim
- a Department of Chemistry, Faculty of Education , Ain Shams University , Cairo, Egypt
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Wang L, Liu X, Dong Z, Fu X, Feng X. Asymmetric Intramolecular Oxa-Michael Addition of Activated α,β-Unsaturated Ketones Catalyzed by a ChiralN,N′-Dioxide Nickel(II) Complex: Highly Enantioselective Synthesis of Flavanones. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200803326] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Wang L, Liu X, Dong Z, Fu X, Feng X. Asymmetric Intramolecular Oxa-Michael Addition of Activated α,β-Unsaturated Ketones Catalyzed by a ChiralN,N′-Dioxide Nickel(II) Complex: Highly Enantioselective Synthesis of Flavanones. Angew Chem Int Ed Engl 2008; 47:8670-3. [DOI: 10.1002/anie.200803326] [Citation(s) in RCA: 109] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Abstract
Considerable progress has been made in recent years in the field of drug development against HIV. Many different kinds of natural products, including coumarins, have been found to be active in anti-HIV models and are thus undergoing further investigation. This review demonstrates the variety of coumarins with unique mechanisms of action in the different stages of HIV replication. The discovery and development of coumarins as anti-HIV agents has expanded in the past two decades. Most of the studies have been focused on the inhibitory activity of reverse transcriptase, but anti-integrase and antiprotease activities were also described. The objective of this review is to evaluate data on coumarins’ potent activity with respect to the inhibition of HIV-reverse transcriptase, HIV-integrase or HIV-protease. Recent requirements for potential anti-HIV agents increasingly require adequate definition of the mechanism of action as well as definition of toxic effects and this also applies to natural as well as synthetic coumarins. Structural modification is a powerful tool to increase the potential of bioactive principles. By applying scientific expertise and modern scientific technology, new single compounds will assuredly be developed as potent anti-HIV candidates for world-class new drug development.
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Affiliation(s)
- Irena Kostova
- Department of Chemistry, Faculty of Pharmacy, 2 Dunav Str, Sofia 1000, Medical University, Bulgaria
| | - Jan Mojzis
- Department of Pharmacology, Medical Faculty, P.J. Safarik University, Tr. SNP 1 040 11 Kosice, Slovak Republic
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22
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Esmaeili A, Ghareghani O. A Facile One-Pot Synthesis of Functionalized 1,5-Dihydro-2H-[1]benzopyrano[2,3-b]pyridin-5-ones. Helv Chim Acta 2007. [DOI: 10.1002/hlca.200790178] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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23
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Zhang Z, Pan C, Wang Z. Synthesis of chromanones: a novel palladium-catalyzed Wacker-type oxidative cyclization involving 1,5-hydride alkyl to palladium migration. Chem Commun (Camb) 2007:4686-8. [PMID: 17989833 DOI: 10.1039/b711613f] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of 2-methylchromanone derivatives have been prepared by using a novel palladium-catalyzed Wacker-type oxidative cyclization, in which a 1,5-hydride alkyl to palladium migration and a direct chirality transfer were involved.
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Affiliation(s)
- Zuhui Zhang
- Hefei National Laboratory for Physical Science at Microscale and Department of Chemistry, University of Science and Technology of China, Hefei, PR China
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24
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Hegab MI, Girgis AS, Ahmed-Farag IS. Novel regioselective synthesis of 3′H,4H-spiro[chromene-3,2′-[1,3,4]thiadiazol]-4-one containing compounds. J Heterocycl Chem 2006. [DOI: 10.1002/jhet.5570430515] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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25
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Kostova I, Raleva S, Genova P, Argirova R. Structure-Activity Relationships of Synthetic Coumarins as HIV-1 Inhibitors. Bioinorg Chem Appl 2006:68274. [PMID: 17497014 PMCID: PMC1686293 DOI: 10.1155/bca/2006/68274] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2004] [Revised: 03/09/2005] [Accepted: 03/12/2005] [Indexed: 11/18/2022] Open
Abstract
HIV/AIDS pandemics is a serious threat to health and development
of mankind, and searching for effective anti-HIV agents
remains actual. Considerable progress has been made in recent
years in the field of drug development against HIV. A lot of
structurally different coumarins were found to display potent
anti-HIV activity. The current review demonstrates the variety of
synthetic coumarins having unique mechanism of action referring to
the different stages of HIV replication. Recent studies based on
the account of various synthetic coumarins seem to indicate that
some of them serve as potent non-nucleoside RT-inhibitors, another
as inhibitors of HIV-integrase or HIV-protease. The merits of
selecting potential anti-HIV agents to be used in rational
combination drugs design and structure-activity relationships are
discussed.The scientific community is looking actively for new
drugs and combinations for treatment of HIV infection effective
for first-line treatment, as well as against resistant mutants.
The investigation on chemical anti-HIV agents gives hope and
optimism about it. This review article describes recent progress
in the discovery, structure modification, and structure-activity
relationship studies of potent anti-HIV coumarin derivatives.
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Affiliation(s)
- I. Kostova
- Department of Chemistry, Faculty of Pharmacy, Medical University, 2 Dunav Street, 1000 Sofia, Bulgaria
- *I. Kostova:
| | - S. Raleva
- Department of Virology, National Center of Infectious
and Parasitic Diseases, 44A Stoletor Street, 1233 Sofia,
Bulgaria
| | - P. Genova
- Department of Virology, National Center of Infectious
and Parasitic Diseases, 44A Stoletor Street, 1233 Sofia,
Bulgaria
| | - R. Argirova
- Department of Virology, National Center of Infectious
and Parasitic Diseases, 44A Stoletor Street, 1233 Sofia,
Bulgaria
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26
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Dawood KM, Fuchigami T. Electrolytic Partial Fluorination of Organic Compounds. 79. Anodic Fluorination of Spiropyrazoline-5,3‘-chroman-4-ones and Thiochromanone Analogues. A Route to Aroyl Fluoride Derivatives. J Org Chem 2005; 70:7537-41. [PMID: 16149781 DOI: 10.1021/jo0507587] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[reaction: see text] Anodic fluorination of spiropyrazole-5,3'-chroman-4-ones and their thiochromanone analogues in dimethoxyethane containing Et4NF x 4HF resulted in ring opening of spiroheterocycles, which led to the formation of (5-pyrazolyl)methyl o-carbomethoxyphenyl ethers and their thioether analogues via benzoyl fluoride derivatives.
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Affiliation(s)
- Kamal M Dawood
- Department of Chemistry, Faculty of Science, Cairo University, Giza, Egypt
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27
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Regio- and stereoselective synthesis of bis-spiropyrazoline-5,3′-chroman(thiochroman)-4-one derivatives via bis-nitrilimines. Tetrahedron 2005. [DOI: 10.1016/j.tet.2005.03.083] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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28
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Almerico A, Lauria A, Tutone M, Diana P, Barraja P, Montalbano A, Cirrincione G, Dattolo G. A Multivariate Analysis on Non-nucleoside HIV-1 Reverse Transcriptase Inhibitors and Resistance Induced by Mutation. ACTA ACUST UNITED AC 2004. [DOI: 10.1002/qsar.200330834] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Yu D, Suzuki M, Xie L, Morris-Natschke SL, Lee KH. Recent progress in the development of coumarin derivatives as potent anti-HIV agents. Med Res Rev 2003; 23:322-45. [PMID: 12647313 DOI: 10.1002/med.10034] [Citation(s) in RCA: 390] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Numerous plant-derived compounds have been evaluated for inhibitory effects against HIV replication, and some coumarins have been found to inhibit different stages in the HIV replication cycle. This review article describes recent progress in the discovery, structure modification, and structure-activity relationship studies of potent anti-HIV coumarin derivatives. A dicamphanoyl-khellactone (DCK) analog, which was discovered and developed in our laboratory, and calanolide A are currently in preclinical studies and clinical trials, respectively.
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Affiliation(s)
- Donglei Yu
- Natural Products Laboratory, School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
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31
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Dawood KM, Fuchigami T. Electrolytic partial fluorination of organic compounds. 55. Highly regio- and stereoselective anodic monofluorination of 2,3-dihydrochroman-4-one and chromone derivatives. J Org Chem 2001; 66:7691-5. [PMID: 11701022 DOI: 10.1021/jo0105437] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Anodic monofluorination at the position alpha to the oxygen atom of the (E)-3-benzylidene-2,3-dihydrochroman-4-one derivatives was successfully carried out to provide the corresponding 2-fluorochromanones selectively. This is the first regioselective electrochemical fluorination of fused-type, oxygen-containing heterocyclic compounds. Anodic fluorination of a chromone derivative also gave a similar fluorinated chromanone stereoselectively.
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Affiliation(s)
- K M Dawood
- Department of Electronic Chemistry, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan
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32
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Schmitt AC, Ravazzolo AP, von Poser GL. Investigation of some Hypericum species native to Southern of Brazil for antiviral activity. JOURNAL OF ETHNOPHARMACOLOGY 2001; 77:239-245. [PMID: 11535370 DOI: 10.1016/s0378-8741(01)00314-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Three plant species, Hypericum connatum, Hypericum caprifoliatum, Hypericum polyanthemum (Guttiferae), growing in Southern of Brazil were chemically investigated and tested for their antiviral activity against feline immunodeficiency virus (FIV). The chemical analysis revealed the presence of polyphenolic compounds such as tannins and flavonoids. Hypericin was not detected in these species. The aqueous extract (AE), the aqueous extract with low tannin concentration (LTCAE) and the methanolic extract (ME) were tested for their cytotoxic properties in concentrations of 50-150 microg/ml. AE was toxic to CRFK for the three species in all concentrations. LTCAE and ME varied between different concentrations being not toxic or allowing 80% of cell growth. LTCAE and ME (10-50 microg/ml) were analyzed for antiviral activity by inhibition of CPE and measuring FIV genome from cell culture supernatant. LTCAE of all species in this work did not cause any inhibition of FIV. Although no difference was seen in CPE, a lower number of viral particles in the supernatant was observed when FIV infected cells were treated with ME of H. connatum. These results suggest that some plants of the genus Hypericum from Southern Brazil contain compounds with potential antiviral activity against lentiviruses.
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Affiliation(s)
- A C Schmitt
- Departamento de Patologia Clínica Veterinária, Laboratório de Virologia Veterinária, Universidade Federal do Rio Grande do Sul, 90540-000 Porto Alegre, RS, Brazil
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33
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Dawood KM, Fuchigami T. Electrolytic partial fluorination of organic compounds. Part 45: Highly regioselective anodic monofluorination of (E)-3-benzylidene-2,3-dihydrochroman-4-ones. Tetrahedron Lett 2001. [DOI: 10.1016/s0040-4039(01)00216-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Xu ZQ, Norris KJ, Weinberg DS, Kardatzke J, Wertz P, Frank P, Flavin MT. Quantification of (+)-calanolide A, a novel and naturally occurring anti-HIV agent, by high-performance liquid chromatography in plasma from rat, dog and human. JOURNAL OF CHROMATOGRAPHY. B, BIOMEDICAL SCIENCES AND APPLICATIONS 2000; 742:267-75. [PMID: 10901131 DOI: 10.1016/s0378-4347(00)00170-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A HPLC method was validated for quantification of (+)-calanolide A (1), a novel anti-HIV agent, in rat, dog and human plasma. The synthetic intermediate (+/-)-12-oxocalanolide A (2) was found to be a suitable internal standard. Compounds were extracted from plasma using a solid-phase C(18) cartridge and quantified over the assay range of 12.5 to 800 ng/ml. The method was utilized to determine (+)-calanolide A pharmacokinetics in rats, dogs and humans. This is the first report of a validated HPLC assay for determination of (+)-calanolide A concentrations in rat and dog plasma as well as human plasma obtained from clinical trials. There was no evidence of in vivo epimerization of (+)-calanolide A to its inactive epimer (+)-calanolide B (3).
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Affiliation(s)
- Z Q Xu
- MediChem Research, Inc., and Sarawak MediChem Pharmaceuticals, Inc., Lemont, IL 60439, USA.
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35
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Xu ZQ, Kern ER, Westbrook L, Allen LB, Buckheit RW, Tseng CK, Jenta T, Flavin MT. Plant-derived and semi-synthetic calanolide compounds with in vitro activity against both human immunodeficiency virus type 1 and human cytomegalovirus. Antivir Chem Chemother 2000; 11:23-9. [PMID: 10693651 DOI: 10.1177/095632020001100102] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Plant-derived and semi-synthetic calanolide compounds with anti-human immunodeficiency virus type 1 (HIV-1) activity were tested for anti-human cytomegalovirus (HCMV) activity in both cytopathic effect inhibition and plaque reduction assays. The results indicated that the anti-HCMV activity of calanolide compounds does not correlate with their activity against HIV-1. The semi-synthetic 12-keto derivatives tended to be more active against HCMV than the corresponding 12-OH congeners, which were more active against HIV-1. It appeared that the 7,8-unsaturated double bond in the chromene ring played a certain role in maintaining activities against both HCMV and HIV-1. Saturation of the double bond increased the EC50 values against both viruses, with concomitant increase in toxicity. The calanolide compounds reported here are the first non-nucleoside analogues capable of inhibiting both HIV-1 and HCMV and, therefore, may be useful chemoprophylactic agents for HCMV in HIV-infected people or vice versa.
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Affiliation(s)
- Z Q Xu
- MediChem Research and Sarawak MediChem Pharmaceuticals, Lemont, IL 60439, USA.
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