1
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Dang PH, Le TH, Van Do TN, Nguyen HX, Nguyen MTT, Nguyen NT. Paratrimerin Z, an undescribed chromene derivative from the roots of Paramignya trimera. Nat Prod Res 2024; 38:327-330. [PMID: 36008765 DOI: 10.1080/14786419.2022.2113996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 08/08/2022] [Accepted: 08/13/2022] [Indexed: 10/15/2022]
Abstract
From an EtOAc-soluble fraction of the roots of Paramignya trimera, one undescribed chromene derivative, paratrimerin Z (1), was isolated. Its structure was elucidated on the basis of NMR spectroscopic interpretation. The absolute configuration of 1 was determined by the specific rotation analysis of its acid-catalyzed hydrolysis product. Paratrimerin Z (1), at a concentration of 100 μM, did not show cytotoxicity against Hep3B human liver cancer cell line.
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Affiliation(s)
- Phu Hoang Dang
- University of Science, Ho Chi Minh City, Vietnam
- Vietnam National University, Ho Chi Minh City, Vietnam
| | - Tho Huu Le
- University of Science, Ho Chi Minh City, Vietnam
- Vietnam National University, Ho Chi Minh City, Vietnam
| | - Truong Nhat Van Do
- University of Science, Ho Chi Minh City, Vietnam
- Vietnam National University, Ho Chi Minh City, Vietnam
| | - Hai Xuan Nguyen
- University of Science, Ho Chi Minh City, Vietnam
- Vietnam National University, Ho Chi Minh City, Vietnam
| | - Mai Thanh Thi Nguyen
- University of Science, Ho Chi Minh City, Vietnam
- Vietnam National University, Ho Chi Minh City, Vietnam
- Cancer Research Laboratory, University of Science, Ho Chi Minh City, Vietnam
| | - Nhan Trung Nguyen
- University of Science, Ho Chi Minh City, Vietnam
- Vietnam National University, Ho Chi Minh City, Vietnam
- Cancer Research Laboratory, University of Science, Ho Chi Minh City, Vietnam
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2
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Van Do TN, Le TH, Nguyen HX, Vo TNT, Dang PH, Nguyen NT, Nguyen MTT. δ-Tocopherol derivatives from the leaves of Muntingia calabura L. Nat Prod Res 2021; 36:5524-5529. [PMID: 34933616 DOI: 10.1080/14786419.2021.2018589] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
From an ethyl acetate-soluble fraction of the leaves of Muntingia calabura, one new trimeric δ-tocopherol derivative named as tocomuntin A (1), together with three known δ-tocopherol derivatives (2-4) were isolated. Their structures were elucidated based on the interpretation of NMR and MS spectroscopic data. In this work, δ-tocopherol (3) was found to have α-glucosidase inhibitory activity for the first time (IC50, 47.3 μM).
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Affiliation(s)
- Truong Nhat Van Do
- Faculty of Chemistry, University of Science, Ho Chi Minh City, Vietnam.,Vietnam National University, Ho Chi Minh City, Vietnam
| | - Tho Huu Le
- Faculty of Chemistry, University of Science, Ho Chi Minh City, Vietnam.,Vietnam National University, Ho Chi Minh City, Vietnam
| | - Hai Xuan Nguyen
- Faculty of Chemistry, University of Science, Ho Chi Minh City, Vietnam.,Vietnam National University, Ho Chi Minh City, Vietnam
| | - Trang Ngoc Tran Vo
- Faculty of Chemistry, University of Science, Ho Chi Minh City, Vietnam.,Vietnam National University, Ho Chi Minh City, Vietnam
| | - Phu Hoang Dang
- Faculty of Chemistry, University of Science, Ho Chi Minh City, Vietnam.,Vietnam National University, Ho Chi Minh City, Vietnam
| | - Nhan Trung Nguyen
- Faculty of Chemistry, University of Science, Ho Chi Minh City, Vietnam.,Vietnam National University, Ho Chi Minh City, Vietnam.,Cancer Research Laboratory, University of Science, Ho Chi Minh City, Vietnam
| | - Mai Thanh Thi Nguyen
- Faculty of Chemistry, University of Science, Ho Chi Minh City, Vietnam.,Vietnam National University, Ho Chi Minh City, Vietnam.,Cancer Research Laboratory, University of Science, Ho Chi Minh City, Vietnam
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3
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Huu DMN, Dang PH, Huynh NV, Dang HP, Vuong L, Nguyen TLT. Pipercyclobutanamide D, a new member of the cyclobutanamide-type alkaloid, from the roots of Piper nigrum. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2021; 23:906-912. [PMID: 32744069 DOI: 10.1080/10286020.2020.1794858] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 07/07/2020] [Accepted: 07/08/2020] [Indexed: 06/11/2023]
Abstract
From the EtOH-soluble extract of the roots of Piper nigrum, one new dimeric alkamide, pipercyclobutanamide D (1) was isolated. Its structure was elucidated on the basis of NMR spectroscopic interpretation. The relative configuration of 1 was determined based on the NOESY analysis. Compound 1 showed α-glucosidase inhibitory activity with an IC50 value of 158.5 µM. In addition, compound 1 exhibited cytotoxicity against the MCF-7 and HepG2 cell lines with the IC50 values of 45.6 and 63.9 µM, respectively. Plausible biosynthetic pathway for the formation of 1 was proposed based on regioselective [2 + 2] cycloaddition reaction.
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Affiliation(s)
- Duc Minh Nguyen Huu
- Faculty of Traditional Medicine, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City 72716, Vietnam
| | - Phu Hoang Dang
- Faculty of Chemistry, University of Science, Ho Chi Minh City 72711, Vietnam
- Vietnam National University, Ho Chi Minh City 71308, Vietnam
| | - Ngoc Vinh Huynh
- Faculty of Chemistry, University of Science, Ho Chi Minh City 72711, Vietnam
- Vietnam National University, Ho Chi Minh City 71308, Vietnam
| | - Huu Phuc Dang
- Laboratory of Applied Physics, Advanced Institute of Materials Science, Ton Duc Thang University, Ho Chi Minh City 72915, Vietnam
- Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City 72915, Vietnam
| | - Loi Vuong
- Institute of Applied Technology, Thu Dau Mot University, Binh Duong Province 75109, Vietnam
| | - Thi Lien Thuong Nguyen
- Institute of Applied Technology, Thu Dau Mot University, Binh Duong Province 75109, Vietnam
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4
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Quan KT, Park HB, Yuk H, Lee SJ, Na M. Paratrimerins J-Y, Dimeric Coumarins Isolated from the Stems of Paramignya trimera. JOURNAL OF NATURAL PRODUCTS 2021; 84:310-326. [PMID: 33464899 DOI: 10.1021/acs.jnatprod.0c00978] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Paratrimerins J-Y (1-13 and 16-18), new dimeric coumarins, were obtained from the EtOH(aq) extract of the stems of Paramignya trimera (Rutaceae) utilizing LC/MS guided isolation. The structures of the dimeric coumarins were elucidated based on 1D/2D NMR spectroscopic and HR-ESIMS data analyses. The absolute configurations of paratrimerins J-Y along with those of two known dimers paratrimerins A (14) and B (15) were established on the basis of the experimental and simulated ECD data. In addition, the absolute configurations of the sugar units of paratrimerins A, B, and J-V (1-15) were confirmed by LC/MS analysis on l-cysteine methyl ester and phenyl isothiocyanate derivatives. The variety of the absolute configurations of the dimeric diastereomers 1-15 highlighted a diversity in stereochemical outcomes following a Diels-Alder biosynthesis in P. trimera. With regard to P. trimera being a recently emerging medicinal resource for liver cancer, the dimers 1-18 were evaluated for cytotoxicity against a wide panel of human cancer cell lines. Paratrimerin W (16) was cytotoxic toward Huh7 hepatocellular carcinoma, HT1080 fibrosarcoma, and HT29 colorectal cancer cells with IC50 values of 14.9, 18.4, and 22.5 μM, respectively.
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Affiliation(s)
- Khong Trong Quan
- Pharmacognosy Laboratory, College of Pharmacy, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Hyun Bong Park
- Department of Chemistry, Yale University, New Haven, Connecticut 06520, United States
- Chemical Biology Institute, Yale University, West Haven, Connecticut 06516, United States
| | - Hanna Yuk
- Molecular and Translational Research Laboratory, College of Pharmacy, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Seung Jin Lee
- Molecular and Translational Research Laboratory, College of Pharmacy, Chungnam National University, Daejeon 34134, Republic of Korea
| | - MinKyun Na
- Pharmacognosy Laboratory, College of Pharmacy, Chungnam National University, Daejeon 34134, Republic of Korea
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6
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Le Thi VA, Nguyen NL, Nguyen QH, Van Dong Q, Do TY, Nguyen T. KO. Phytochemical Screening and Potential Antibacterial Activity of Defatted and Nondefatted Methanolic Extracts of Xao Tam Phan ( Paramignya trimera (Oliv.) Guillaum) Peels against Multidrug-Resistant Bacteria. SCIENTIFICA 2021; 2021:4233615. [PMID: 34513112 PMCID: PMC8424233 DOI: 10.1155/2021/4233615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 08/16/2021] [Indexed: 05/04/2023]
Abstract
Xao tam phan (Paramignya trimera (Oliv.) Guillaum) is a traditional herbal medicine in Vietnam. Previous investigations reported mainly compounds and bioactivities of roots, stems, and leaves while there is limited information about those of fruits. This study aims to reveal the difference in the chemical profile of defatted peel (DP) and nondefatted peel (NDP) methanolic extracts of P. trimera using colorimetric reactions and liquid chromatography coupled with high-resolution mass spectrometry (LC-HRMS) analysis. We also showed the potential antibacterial activity of two extracts against clinically isolated bacteria strains including P. aeruginosa, Salmonella sp., and S. aureus with the MIC values < 100 μg/mL. This preliminary result proves the traditional usage of this herbal medicine and can be helpful for further investigation on the isolation and identification of the new compounds in P. trimera peels.
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Affiliation(s)
- Van-Anh Le Thi
- Department of Life Sciences, University of Science and Technology of Hanoi, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Ngoc-Lien Nguyen
- Department of Life Sciences, University of Science and Technology of Hanoi, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Quang-Huy Nguyen
- Department of Life Sciences, University of Science and Technology of Hanoi, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
- LMI-DRISA, University of Science and Technology of Hanoi, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Quyen Van Dong
- Department of Life Sciences, University of Science and Technology of Hanoi, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Thi-Yen Do
- Department of Life Sciences, University of Science and Technology of Hanoi, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Kieu-Oanh Nguyen T.
- Department of Life Sciences, University of Science and Technology of Hanoi, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
- LMI-DRISA, University of Science and Technology of Hanoi, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
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7
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Dang PH, Dao THX, Le VT, Nguyen CM, Ly TT, Nguyen HX, Le TH, Do TNV, Nguyen MTT, Sun S, Awale S, Nguyen NT. Synthesis of Alkyl Triphenylphosphonium Ostruthin Derivatives as Potential Cytotoxic Candidates. ChemistrySelect 2020. [DOI: 10.1002/slct.202003152] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Phu H. Dang
- Faculty of Chemistry University of Science Ho Chi Minh City 72711 Vietnam
- Vietnam National University Ho Chi Minh City 71300 Vietnam
| | - Thien H. X. Dao
- Faculty of Chemistry University of Science Ho Chi Minh City 72711 Vietnam
- Vietnam National University Ho Chi Minh City 71300 Vietnam
| | - Vien T. Le
- Faculty of Chemistry University of Science Ho Chi Minh City 72711 Vietnam
- Vietnam National University Ho Chi Minh City 71300 Vietnam
| | - Chien M. Nguyen
- Faculty of Chemistry University of Science Ho Chi Minh City 72711 Vietnam
- Vietnam National University Ho Chi Minh City 71300 Vietnam
| | - Tin T. Ly
- Faculty of Chemistry University of Science Ho Chi Minh City 72711 Vietnam
- Vietnam National University Ho Chi Minh City 71300 Vietnam
| | - Hai X. Nguyen
- Faculty of Chemistry University of Science Ho Chi Minh City 72711 Vietnam
- Vietnam National University Ho Chi Minh City 71300 Vietnam
| | - Tho H. Le
- Faculty of Chemistry University of Science Ho Chi Minh City 72711 Vietnam
- Vietnam National University Ho Chi Minh City 71300 Vietnam
| | - Truong N. V. Do
- Faculty of Chemistry University of Science Ho Chi Minh City 72711 Vietnam
- Vietnam National University Ho Chi Minh City 71300 Vietnam
| | - Mai T. T. Nguyen
- Faculty of Chemistry University of Science Ho Chi Minh City 72711 Vietnam
- Vietnam National University Ho Chi Minh City 71300 Vietnam
- Cancer Research Laboratory University of Science Ho Chi Minh City 72711 Vietnam
| | - Sijia Sun
- Division of Natural Drug Discovery Institute of Natural Medicine University of Toyama 2630 Sugitani, Toyama 930–0194 Japan
| | - Suresh Awale
- Division of Natural Drug Discovery Institute of Natural Medicine University of Toyama 2630 Sugitani, Toyama 930–0194 Japan
| | - Nhan T. Nguyen
- Faculty of Chemistry University of Science Ho Chi Minh City 72711 Vietnam
- Vietnam National University Ho Chi Minh City 71300 Vietnam
- Cancer Research Laboratory University of Science Ho Chi Minh City 72711 Vietnam
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8
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Tafesse TB, Bule MH, Khoobi M, Faramarzi MA, Abdollahi M, Amini M. Coumarin-based Scaffold as α-glucosidase Inhibitory Activity: Implication for the Development of Potent Antidiabetic Agents. Mini Rev Med Chem 2020; 20:134-151. [PMID: 31553294 DOI: 10.2174/1389557519666190925162536] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Revised: 08/15/2019] [Accepted: 09/04/2019] [Indexed: 12/22/2022]
Abstract
BACKGROUND Delaying the absorption of glucose through α-glucosidase enzyme inhibition is one of the therapeutic approaches in the management of Type 2 diabetes, which can reduce the incidence of postprandial hyperglycemia. The existence of chronic postprandial hyperglycemia impaired the endogenous antioxidant defense by inducing oxidative stress-induced pancreatic β-cell destruction through uncontrolled generation of free radicals such as ROS, which in turn, leads to various macrovascular and microvascular complications. The currently available α -glucosidase inhibitors, for instance, acarbose, have some side effects such as hypoglycemia at higher doses, liver problems, meteorism, diarrhea, and lactic acidosis. Therefore, there is an urgent need to discover and develop potential α-glucosidase inhibitors. OBJECTIVE Based on suchmotifs, researchers are intrigued to search for the best scaffold that displays various biological activities. Among them, coumarin scaffold has attracted great attention. The compound and its derivatives can be isolated from various natural products and/or synthesized for the development of novel α-glucosidase inhibitors. RESULTS This study focused on coumarin and its derivatives as well as on their application as potent antidiabetic agents and has also concentrated on the structure-activity relationship. CONCLUSION This review describes the applications of coumarin-containing derivatives as α - glucosidase inhibitors based on published reports which will be useful for innovative approaches in the search for novel coumarin-based antidiabetic drugs with less toxicity and more potency.
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Affiliation(s)
- Tadesse Bekele Tafesse
- Department of Medicinal Chemistry, Faculty of Pharmacy, Tehran University of Medical Sciences-International Campus (IC-TUMS), Tehran, Iran.,Department of Medicinal Chemistry, Faculty of Pharmacy, Drug Design and Development Research Center and The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran.,School of Pharmacy, College of Health & Medical Sciences, Haramaya University, Harar, Ethiopia
| | - Mohammed Hussen Bule
- Department of Medicinal Chemistry, Faculty of Pharmacy, Tehran University of Medical Sciences-International Campus (IC-TUMS), Tehran, Iran.,Department of Medicinal Chemistry, Faculty of Pharmacy, Drug Design and Development Research Center and The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran.,Department of Pharmacy, College of Medicine and Health Sciences, Ambo University, Ambo, Ethiopia
| | - Mehdi Khoobi
- Department of Pharmaceutical Biomaterials, Medical Biomaterials Research Center and The Institute of Pharmaceutical Sciences (TIPS), Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Ali Faramarzi
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy and The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Abdollahi
- Department of Pharmacology and Toxicology, Faculty of Pharmacy and The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran
| | - Mohsen Amini
- Department of Medicinal Chemistry, Faculty of Pharmacy, Drug Design and Development Research Center and The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran
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9
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Nguyen MTT, Dang PH, Nguyen HX, Le TH, Van Do TN, Pham PV, Nguyen ST, Nguyen NT. Paratrimerin I, cytotoxic acridone alkaloid from the roots of Paramignya trimera. Nat Prod Res 2020; 35:5042-5047. [DOI: 10.1080/14786419.2020.1774760] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Mai Thanh Thi Nguyen
- Faculty of Chemistry, University of Science, Ho Chi Minh City, Viet Nam
- Cancer Research Laboratory, University of Science, Ho Chi Minh City, Viet Nam
- Vietnam National University, Ho Chi Minh City, Viet Nam
| | - Phu Hoang Dang
- Faculty of Chemistry, University of Science, Ho Chi Minh City, Viet Nam
- Vietnam National University, Ho Chi Minh City, Viet Nam
| | - Hai Xuan Nguyen
- Faculty of Chemistry, University of Science, Ho Chi Minh City, Viet Nam
- Vietnam National University, Ho Chi Minh City, Viet Nam
| | - Tho Huu Le
- Faculty of Chemistry, University of Science, Ho Chi Minh City, Viet Nam
- Vietnam National University, Ho Chi Minh City, Viet Nam
| | - Truong Nhat Van Do
- Faculty of Chemistry, University of Science, Ho Chi Minh City, Viet Nam
- Vietnam National University, Ho Chi Minh City, Viet Nam
| | - Phuc Van Pham
- Stem Cell Institute, University of Science, Ho Chi Minh City, Viet Nam
- Vietnam National University, Ho Chi Minh City, Viet Nam
| | - Sinh Truong Nguyen
- Stem Cell Institute, University of Science, Ho Chi Minh City, Viet Nam
- Vietnam National University, Ho Chi Minh City, Viet Nam
| | - Nhan Trung Nguyen
- Faculty of Chemistry, University of Science, Ho Chi Minh City, Viet Nam
- Cancer Research Laboratory, University of Science, Ho Chi Minh City, Viet Nam
- Vietnam National University, Ho Chi Minh City, Viet Nam
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10
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Ngo TC, Mai TVT, Pham TT, Jeremic S, Markovic Z, Huynh LK, Dao DQ. Natural acridones and coumarins as free radical scavengers: Mechanistic and kinetic studies. Chem Phys Lett 2020. [DOI: 10.1016/j.cplett.2020.137312] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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11
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Chinh NT, Le Anh NT, Thao PT, Quang DD. Photoprotective properties of natural antioxidant flavonoids: A DFT and TD-DFT study on acridone derivatives. VIETNAM JOURNAL OF CHEMISTRY 2020. [DOI: 10.1002/vjch.201900083] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ngo Thi Chinh
- Institute of Research and Development, Duy Tan University; 03 Quang Trung Da Nang 50000 Viet Nam
| | - Nguyen Thi Le Anh
- Institute of Research and Development, Duy Tan University; 03 Quang Trung Da Nang 50000 Viet Nam
| | - Pham Thi Thao
- Department of Pharmacy, Duy Tan University; 03 Quang Trung Da Nang 50000 Viet Nam
| | - Dao Duy Quang
- Institute of Research and Development, Duy Tan University; 03 Quang Trung Da Nang 50000 Viet Nam
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12
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Nguyen NYT, Dang PH, Thien Nguyen VT, Vo TT, Nguyen DAT, Nguyen MDH, Dang PH, Tran QL. Nimbandiolactone-21 and nimbandioloxyfuran, two new 28-norlimonoids from the leaves of Azadirachta indica (Meliaceae). JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2019; 21:867-872. [PMID: 29986612 DOI: 10.1080/10286020.2018.1476498] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Accepted: 05/10/2018] [Indexed: 06/08/2023]
Abstract
From an EtOAc-soluble fraction of the leaves of Azadirachta indica, two new 28-norlimonoids named nimbandiolactone-21 (1) and nimbandioloxyfuran (2), together with nimbandiolactone-23 (3), were isolated. Their relative structures were elucidated based on NMR spectroscopic interpretation and biosynthetic consideration. Nimbandioloxyfuran (2) and nimbandiolactone-23 (3) showed potent α-glucosidase inhibitory activity, with the IC50 values of 46.2 and 38.7 μM, respectively.
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Affiliation(s)
- Nhi Y Thi Nguyen
- a Faculty of Chemistry, VNUHCM-University of Science , Ho Chi Minh City 700000 , Vietnam
| | - Phu Hoang Dang
- a Faculty of Chemistry, VNUHCM-University of Science , Ho Chi Minh City 700000 , Vietnam
| | | | - Tuan Trong Vo
- b Faculty of Traditional Medicine, University of Medicine and Pharmacy at Ho Chi Minh City , Ho Chi Minh City 700000 , Vietnam
| | - Dao Anh Thi Nguyen
- b Faculty of Traditional Medicine, University of Medicine and Pharmacy at Ho Chi Minh City , Ho Chi Minh City 700000 , Vietnam
| | - Minh Duc Huu Nguyen
- b Faculty of Traditional Medicine, University of Medicine and Pharmacy at Ho Chi Minh City , Ho Chi Minh City 700000 , Vietnam
| | - Phuc Huu Dang
- c Theoretical Physics Research Group, Advanced Institute of Materials Science, Ton Duc Thang University , Ho Chi Minh City 700000 , Vietnam
- d Faculty of Applied Sciences, Ton Duc Thang University , Ho Chi Minh City 700000 , Vietnam
| | - Quan Le Tran
- a Faculty of Chemistry, VNUHCM-University of Science , Ho Chi Minh City 700000 , Vietnam
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13
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Abstract
Paramignya trimera (Oliv.) Guill. (Rutaceae), mostly distributed in the southern regions of Vietnam, has been used as a medicinal plant for treatment of liver diseases and cancer. From the methanol extract of the roots and stems of P. trimera, 3 new compounds (1-3) were isolated, including ninhvanin B (1), paramitrimerol (2), and parabacunoic acid (3), and a known alkaloid, citrusinine-I (4). The structures of these compounds were elucidated by electrospray ionization mass spectrometry and nuclear magnetic resonance spectral analysis, as well as by comparison with literature data.
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14
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Xiong Z, Zhang X, Li Y, Peng X, Fu J, Guo J, Xie F, Jiang C, Lin B, Liu Y, Cheng M. Syntheses of 12H-benzo[a]xanthen-12-ones and benzo[a]acridin-12(7H)-ones through Au(i)-catalyzed Michael addition/6-endo-trig cyclization/aromatization cascade annulation. Org Biomol Chem 2019; 16:7361-7374. [PMID: 30124720 DOI: 10.1039/c8ob01684d] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A multifaceted gold(i)-catalyzed aromaticity-driven double 6-endo cascade cyclization strategy to synthesize both 12H-benzo[a]xanthen-12-ones and benzo[a]acridin-12(7H)-ones, whose core motifs xanthone and acridone both exist as important scaffolds in an immense number of bioactive compounds, was developed. The scopes of this strategy were examined by using a batch of synthetic 1,3-diphenylprop-2-yn-1-one substrates. To probe the mechanism of this cyclization a control experiment for synthesizing intermediates was performed. Thus, a putative mechanism was determined according to this experiment and previous studies.
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Affiliation(s)
- Zhiling Xiong
- Key Laboratory of Structure-Based Drug Design and Discovery (Shenyang Pharmaceutical University), Ministry of Education, Shenyang 110016, P. R. China.
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15
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Design, synthesis, docking study, α-glucosidase inhibition, and cytotoxic activities of acridine linked to thioacetamides as novel agents in treatment of type 2 diabetes. Bioorg Chem 2018; 80:288-295. [PMID: 29980114 DOI: 10.1016/j.bioorg.2018.06.035] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 06/17/2018] [Accepted: 06/29/2018] [Indexed: 11/22/2022]
Abstract
A novel series of acridine linked to thioacetamides 9a-o were synthesized and evaluated for their α-glucosidase inhibitory and cytotoxic activities. All the synthesized compounds exhibited excellent α-glucosidase inhibitory activity in the range of IC50 = 80.0 ± 2.0-383.1 ± 2.0 µM against yeast α-glucosidase, when compared to the standard drug acarbose (IC50 = 750.0 ± 1.5 µM). Among the synthesized compounds, 2-((6-chloro-2-methoxyacridin-9-yl)thio)-N-(p-tolyl) acetamide 9b displayed the highest α-glucosidase inhibitory activity (IC50 = 80.0 ± 2.0 μM). The in vitro cytotoxic assay of compounds 9a-o against MCF-7 cell line revealed that only the compounds 9d, 9c, and 9n exhibited cytotoxic activity. Cytotoxic compounds 9d, 9c, and 9n did not show cytotoxic activity against the normal human cell lines HDF. Kinetic study revealed that the most potent compound 9b is a competitive inhibitor with a Ki of 85 μM. Furthermore, the interaction modes of the most potent compounds 9b and 9f with α-glucosidase were evaluated through the molecular docking studies.
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16
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Nguyen NYT, Dang PH, Nguyen VTT, Dang PH, Tran QL. A new lactam 28-norlimonoid from the leaves of Azadirachta indica A. Juss. (Meliaceae). Nat Prod Res 2018; 33:1903-1908. [PMID: 29806497 DOI: 10.1080/14786419.2018.1479700] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
From an EtOAc-soluble fraction of the leaves of Azadirachta indica, one new lactam 28-norlimonoid named nimbandiolactam-21 (1), together with 2 known limonoids (2 and 3) were isolated. Their relative structures were elucidated based on NMR spectroscopic analysis. Nimbandiolactone-23 (2) showed the most potent α-glucosidase inhibitory activity, with an IC50 value of 38.7 μM. Compound 1 represents the first naturally occurring example of a 28-norlimonoid having the lactam moiety. The plausible biosynthetic pathway for the formation of lactam moiety in 1 was proposed.
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Affiliation(s)
- Nhi Y T Nguyen
- a Faculty of Chemistry , VNUHCM-University of Science , Ho Chi Minh City , Vietnam
| | - Phu H Dang
- a Faculty of Chemistry , VNUHCM-University of Science , Ho Chi Minh City , Vietnam
| | - Van T T Nguyen
- a Faculty of Chemistry , VNUHCM-University of Science , Ho Chi Minh City , Vietnam
| | - Phuc H Dang
- b Theoretical Physics Research Group , Advanced Institute of Materials Science, Ton Duc Thang University , Ho Chi Minh City , Vietnam.,c Faculty of Applied Sciences , Ton Duc Thang University , Ho Chi Minh City , Vietnam
| | - Quan L Tran
- a Faculty of Chemistry , VNUHCM-University of Science , Ho Chi Minh City , Vietnam
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Nguyen NT, Dang PH, Vu NXT, Le TH, Nguyen MTT. Quinoliniumolate and 2H-1,2,3-Triazole Derivatives from the Stems of Paramignya trimera and Their α-Glucosidase Inhibitory Activities: In Vitro and in Silico Studies. JOURNAL OF NATURAL PRODUCTS 2017; 80:2151-2155. [PMID: 28726400 DOI: 10.1021/acs.jnatprod.7b00289] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
From a CHCl3-soluble extract of the stems of Paramignya trimera, two new alkaloids, (E)-2-(prop-1-enyl)-N-methylquinolinium-4-olate (1) and (R)-2-ethylhexyl 2H-1,2,3-triazole-4-carboxylate (2), were isolated. Their structures were elucidated based on the spectroscopic data interpretation. Compound 2 possesses α-glucosidase inhibitory activity, with an IC50 value of 137.9 μM. Molecular docking studies of 1 and 2 with human maltase-glucoamylase (MGAM) were performed for the first time; thus, the 2,3-diH+-1H-1,2,3-triazolium cation (2i) showed good interactions with both MGAM-N (2QMJ) and -C (3TOP) terminal subunits.
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Affiliation(s)
- Nhan T Nguyen
- Faculty of Chemistry, VNUHCM-University of Science , 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Vietnam
- Cancer Research Laboratory, Vietnam National University, Ho Chi Minh City , 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Vietnam
| | - Phu H Dang
- Faculty of Chemistry, VNUHCM-University of Science , 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Vietnam
| | - Ngoc X T Vu
- Faculty of Chemistry, VNUHCM-University of Science , 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Vietnam
| | - Tho H Le
- Faculty of Chemistry, VNUHCM-University of Science , 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Vietnam
| | - Mai T T Nguyen
- Faculty of Chemistry, VNUHCM-University of Science , 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Vietnam
- Cancer Research Laboratory, Vietnam National University, Ho Chi Minh City , 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Vietnam
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