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Pailee P, Ploypradith P, Mahidol C, Ruchirawat S, Prachyawarakorn V. Dulcisenes C-E, polyoxygenated cyclohexenes, from Uvaria dulcis dunal and their cytotoxic activity. PHYTOCHEMISTRY 2022; 202:113298. [PMID: 35780925 DOI: 10.1016/j.phytochem.2022.113298] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 06/15/2022] [Accepted: 06/27/2022] [Indexed: 06/15/2023]
Abstract
Dulcisenes C-E, undescribed polyoxygenated cyclohexenes and twenty-one known compounds were isolated from the dichloromethane extract of the leaves of Uvaria dulcis Dunal. The structures of these undescribed compounds were determined by spectroscopic data analyses, including 1D and 2D NMR, IR, and MS techniques; their absolute configurations were analyzed by NOESY and ECD spectra. Cytotoxicity of sixteen more abundant isolates was evaluated. Cherrevenone and 2',3'-dihydroxy-4',6'-dimethoxychalcone exhibited cytotoxic activity against some cancer cell lines with IC50 values in the range of 3.3-11.8 μM.
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Affiliation(s)
- Phanruethai Pailee
- Laboratory of Natural Products, Chulabhorn Research Institute, Kamphaeng Phet 6 Road, Laksi, Bangkok, 10210, Thailand
| | - Poonsakdi Ploypradith
- Laboratory of Medicinal Chemistry, Chulabhorn Research Institute, Kamphaeng Phet 6 Road, Laksi, Bangkok, 10210, Thailand; Program in Chemical Sciences, Chulabhorn Graduate Institute, Chulabhorn Royal Academy, Kamphaeng Phet 6 Road, Laksi, Bangkok, 10210, Thailand; Center of Excellence on Environmental Health and Toxicology (EHT), OPS, MHESI, Thailand
| | - Chulabhorn Mahidol
- Laboratory of Natural Products, Chulabhorn Research Institute, Kamphaeng Phet 6 Road, Laksi, Bangkok, 10210, Thailand; Program in Chemical Sciences, Chulabhorn Graduate Institute, Chulabhorn Royal Academy, Kamphaeng Phet 6 Road, Laksi, Bangkok, 10210, Thailand
| | - Somsak Ruchirawat
- Laboratory of Medicinal Chemistry, Chulabhorn Research Institute, Kamphaeng Phet 6 Road, Laksi, Bangkok, 10210, Thailand; Program in Chemical Sciences, Chulabhorn Graduate Institute, Chulabhorn Royal Academy, Kamphaeng Phet 6 Road, Laksi, Bangkok, 10210, Thailand; Center of Excellence on Environmental Health and Toxicology (EHT), OPS, MHESI, Thailand
| | - Vilailak Prachyawarakorn
- Laboratory of Natural Products, Chulabhorn Research Institute, Kamphaeng Phet 6 Road, Laksi, Bangkok, 10210, Thailand.
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2
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Maeda G, Gilissen PJ, Bourgard C, van der Wal J, Munissi JJ, Nyandoro SS, Erdélyi M. Polyoxygenated cyclohexene derivatives and flavonoids from the leaves of Uvaria pandensis. Fitoterapia 2022; 158:105170. [DOI: 10.1016/j.fitote.2022.105170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 03/03/2022] [Accepted: 03/08/2022] [Indexed: 11/16/2022]
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Maeda G, Gilissen PJ, Rudenko A, van der Wal J, Bourgard C, Gupta AK, Sunnerhagen P, Munissi JJE, Nyandoro SS, Erdélyi M. Oxygenated Cyclohexene Derivatives from the Stem and Root Barks of Uvaria pandensis. JOURNAL OF NATURAL PRODUCTS 2021; 84:3080-3089. [PMID: 34802242 PMCID: PMC8713284 DOI: 10.1021/acs.jnatprod.1c00811] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Indexed: 05/13/2023]
Abstract
Five new cyclohexene derivatives, dipandensin A and B (1 and 2) and pandensenols A-C (3-5), and 16 known secondary metabolites (6-21) were isolated from the methanol-soluble extracts of the stem and root barks of Uvaria pandensis. The structures were characterized by NMR spectroscopic and mass spectrometric analyses, and that of 6-methoxyzeylenol (6) was further confirmed by single-crystal X-ray crystallography, which also established its absolute configuration. The isolated metabolites were evaluated for antibacterial activity against the Gram-positive bacteria Bacillus subtilis and Staphylococcus epidermidis and the Gram-negative bacteria Enterococcus raffinosus, Escherichia coli, Paraburkholderia caledonica, Pectobacterium carotovorum, and Pseudomonas putida, as well as for cytotoxicity against the MCF-7 human breast cancer cell line. A mixture of uvaretin (20) and isouvaretin (21) exhibited significant antibacterial activity against B. subtilis (EC50 8.7 μM) and S. epidermidis (IC50 7.9 μM). (8'α,9'β-Dihydroxy)-3-farnesylindole (12) showed strong inhibitory activity (EC50 9.8 μM) against B. subtilis, comparable to the clinical reference ampicillin (EC50 17.9 μM). None of the compounds showed relevant cytotoxicity against the MCF-7 human breast cancer cell line.
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Affiliation(s)
- Gasper Maeda
- Chemistry
Department, College of Natural and Applied Sciences, University of Dar es Salaam, Dar es Salaam, Tanzania
- Department
of Chemistry−BMC, Uppsala University, SE-751 23 Uppsala, Sweden
| | - Pieter J. Gilissen
- Institute
for Molecules and Materials, Radboud University, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
| | - Anastasia Rudenko
- Department
of Chemistry and Molecular Biology, University of Gothenburg,
and Centre for Antibiotic Resistance Research (CARe)
at the University of Gothenburg, SE-405 30 Gothenburg, Sweden
| | - Jelle van der Wal
- Department
of Chemistry and Molecular Biology, University of Gothenburg,
and Centre for Antibiotic Resistance Research (CARe)
at the University of Gothenburg, SE-405 30 Gothenburg, Sweden
| | - Catarina Bourgard
- Department
of Chemistry and Molecular Biology, University of Gothenburg,
and Centre for Antibiotic Resistance Research (CARe)
at the University of Gothenburg, SE-405 30 Gothenburg, Sweden
| | - Arvind Kumar Gupta
- Department
of Chemistry−Ångström, Uppsala University, SE-751
20 Uppsala, Sweden
| | - Per Sunnerhagen
- Department
of Chemistry and Molecular Biology, University of Gothenburg,
and Centre for Antibiotic Resistance Research (CARe)
at the University of Gothenburg, SE-405 30 Gothenburg, Sweden
| | - Joan J. E. Munissi
- Chemistry
Department, College of Natural and Applied Sciences, University of Dar es Salaam, Dar es Salaam, Tanzania
| | - Stephen S. Nyandoro
- Chemistry
Department, College of Natural and Applied Sciences, University of Dar es Salaam, Dar es Salaam, Tanzania
| | - Máté Erdélyi
- Department
of Chemistry−BMC, Uppsala University, SE-751 23 Uppsala, Sweden
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Vinaykumar A, Venkateswara Rao B. A divergent and stereoselective approach for the syntheses of (-)-zeylenol, (+)-6-O-benzoylzeylenol, (+)-uvarigranol E and (+)-uvarigranol F. Carbohydr Res 2021; 509:108432. [PMID: 34530378 DOI: 10.1016/j.carres.2021.108432] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 08/21/2021] [Accepted: 08/23/2021] [Indexed: 11/27/2022]
Abstract
A common, divergent, efficient, and stereoselective approach to the total syntheses of four carbasugars, namely, (-)-zeylenol, (+)-6-O-benzoylzeylenol, (+)-uvarigranol E and (+)-uvarigranol F from d-mannose derived key intermediate 14 is described. This intermediate was synthesized using mixed aldol condensation, Grignard reaction and ring closing metathesis as key steps by our previous method in nine steps from d-mannose. From this intermediate, we achieved the syntheses of (+)-6-O-benzoylzeylenol, (+)-uvarigranol F in three steps, (+)-uvarigranol E in four steps and improved synthesis of (-)-zeylenol.
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Affiliation(s)
- Allam Vinaykumar
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India
| | - Batchu Venkateswara Rao
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India.
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Modulation of inflammatory pathways, medicinal uses and toxicities of Uvaria species: potential role in the prevention and treatment of inflammation. Inflammopharmacology 2020; 28:1195-1218. [PMID: 32617790 DOI: 10.1007/s10787-020-00734-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 06/13/2020] [Indexed: 12/13/2022]
Abstract
The therapeutic efficacy of the contemporary anti-inflammatory drugs are well established; however, prolonged use of such can often lead to serious and life-threatening side effects. Natural product-based anti-inflammatory compounds with superior efficacy and minimum toxicity can serve as possible therapeutic alternatives in this scenario. Genus Uvaria is a part of Annonaceae family, while the majority of its species are widely distributed in tropical rain forest regions of South East Asia. Uvaria species have been used extensively used as traditional medicine for treating all sorts of inflammatory diseases including catarrhal inflammation, rheumatism, acute allergic reactions, hemorrhoids, inflammatory liver disease and inflamed joints. Phytochemical analysis of Uvaria species has revealed flavones, flavonoids, tannins, saponins, polyoxygenated cyclohexene and phenolic compounds as major phyto-constituents. This review is an attempt to highlight the anti-inflammatory activity of Uvaria species by conducting a critical appraisal of the published literature. The ethnopharmacological relevance of Uvaria species in the light of toxicological studies is also discussed herein. An extensive and relevant literature on anti-inflammatory activity of Uvaria species was collected from available books, journals and electronic databases including PubMed, ScienceDirect, Scopus, Proquest and Ovid. Extracts and isolates of Uvaria species exhibited significant anti-inflammatory activity through various mechanisms of action. 6,7-di-O-Methyl-baicalein, flexuvarol B, chrysin, (-)-zeylenol, 6-hydroxy-5,7-dimethoxy-flavone, and pinocembrin were the most potent anti-inflammatory compounds with comparable IC50 with positive controls. Therefore, it is suggested that further research should be carried out to determine the pharmacokinetics, pharmacodynamics and toxicity of these therapeutically significant compounds, to convert the pre-clinical results into clinical data for drug development and design.
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Leepasert T, Saparpakorn P, Chainok K, Duangthongyou T. Crystal structure of 5-[(benzo-yloxy)meth-yl]-5,6-dihy-droxy-4-oxo-cyclo-hex-2-en-1-yl benzoate. Acta Crystallogr E Crystallogr Commun 2020; 76:1096-1100. [PMID: 32695459 PMCID: PMC7336786 DOI: 10.1107/s2056989020007793] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 06/09/2020] [Indexed: 11/10/2022]
Abstract
The crystal structure of the natural product zeylenone, C21H18O7, was confirmed by single-crystal X-ray diffraction. The crystal structure has three chiral centers at positions C1, C5 and C6 of the cyclo-hexa-none ring, but the absolute configuration could not be determined reliably. The methyl benzoate and benzo-yloxy substituents at positions C1 and C5 of the cyclo-hexenone ring are on the same side of the ring with the dihedral angle between their mean planes being 16.25 (10)°. These rings are almost perpendicular to the cyclo-hexenone ring. The benzoate groups and two hydroxyl groups on the cyclo-hexenone ring form strong hydrogen bonds to consolidate the crystal structure. In addition, weak C-H⋯O hydrogen bonds also contribute to the packing of the structure.
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Affiliation(s)
- Theerachart Leepasert
- Department of Chemistry, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand
| | | | - Kittipong Chainok
- Thammasat University Research Unit in Multifunctional Crystalline Materials and Applications (TU-MCMA), Faculty of Science and Technology, Thammasat University, Khlong Luang, Pathum Thani, 12121, Thailand
| | - Tanwawan Duangthongyou
- Department of Chemistry, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand
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Anti-Inflammatory Compounds from Vietnamese Piper bavinum. J CHEM-NY 2020. [DOI: 10.1155/2020/1038636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
This study reports the anti-inflammatory activity-guided fractionation of the aerial part of Piper bavinum C. CD. (Piperaceae) that led to the isolation of eight secondary metabolites (1–8). The chemical structures of 1–8 were established mainly by NMR and mass spectra. Compound 5 was isolated from P. bavinum for the first time. All the isolated compounds were evaluated against LPS-induced NO production in macrophage RAW 264.7 cells in vitro. Among them, compound 4 showed the most potent inhibitory activity against the LPS-induced NO production with an IC50 value of 5.2 μM followed by compound 5 that inhibited NO production with an IC50 value of 13.5 μM. In the protein levels, compound 4 suppressed LPS-induced COX-2 and iNOS expressions in a dose-dependent manner. The results suggested that P. bavinum and its constituents might exert anti-inflammatory effects.
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Suthiphasilp V, Maneerat W, Andersen RJ, Patrick BO, Phukhatmuen P, Pyne SG, Laphookhieo S. Uvarialuridols A-C, three new polyoxygenated cyclohexenes from the twig and leaf extracts of Uvaria lurida. Fitoterapia 2019; 138:104340. [PMID: 31465816 DOI: 10.1016/j.fitote.2019.104340] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 08/20/2019] [Accepted: 08/25/2019] [Indexed: 12/12/2022]
Abstract
The first phytochemical investigation of Uvaria lurida resulted in the isolation and identification of three new polyoxygenated cyclohexenes, (+)-(1R,2S,3R,6S)-uvarialuridols A-C (1-3), together with 10 known compounds (4-13). All new structures were elucidated by spectroscopic methods and HRESIMS. The absolute configurations of compounds 1 and 5 were confirmed by X-ray diffraction analysis using Cu Kα radiation. The absolute configurations of compounds 2-4 were identified from comparisons of their specific rotations and ECD spectra with those of known compounds. Compound 11 showed α-glucosidase inhibitory activity with an IC50 value of 30 μM which was better than the standard control, acarbose (74 μM) whereas, compound 10 exhibited nitric oxide (NO) production inhibitory activity with an IC50 value of 37 μM.
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Affiliation(s)
- Virayu Suthiphasilp
- Center of Chemical Innovation for Sustainability (CIS), Mae Fah Luang University, Chiang Rai 57100, Thailand; School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand
| | - Wisanu Maneerat
- Center of Chemical Innovation for Sustainability (CIS), Mae Fah Luang University, Chiang Rai 57100, Thailand; School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand
| | - Raymond J Andersen
- Department of Chemistry, Department of Earth, Ocean & Atmospheric Sciences, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada
| | - Brian O Patrick
- Department of Chemistry, Department of Earth, Ocean & Atmospheric Sciences, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada
| | - Piyaporn Phukhatmuen
- Center of Chemical Innovation for Sustainability (CIS), Mae Fah Luang University, Chiang Rai 57100, Thailand; School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand
| | - Stephen G Pyne
- School of Chemistry and Molecular Biosciences, University of Wollongong, Wollongong, New South Wales 2522, Australia
| | - Surat Laphookhieo
- Center of Chemical Innovation for Sustainability (CIS), Mae Fah Luang University, Chiang Rai 57100, Thailand; School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand.
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