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Sribuhom T, Posri P, Khankeaw W, Pornchoo C, Prawan A, Tontapha S, Amornkitbamrung V, Yenjai C. A rare isoflavone-quinone and a new flavanone from the roots of Dalbergia stipulacea Roxb. Nat Prod Res 2022:1-9. [PMID: 35300543 DOI: 10.1080/14786419.2022.2053852] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Two previously undescribed compounds, namely dalpulapans F and G (1 and 2), along with 11 known compounds were isolated from the MeOH crude extract of the roots of Dalbergia stipulacea. Dalpulapan F was found as a rare isoflavone-quinone derivative. Their structures and absolute configurations were supported by extensive spectroscopic data analysis, including 1 D and 2 D NMR, HRESIMS data, specific rotation data, and comparison of the experimental and calculated ECD data. Cytotoxicity evaluation of the isolated compounds against HepG2 and KKU-M156 cell lines revealed that isoflavonoid 9 and rotenoid 13 exhibited the most activity against the two cell lines.
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Affiliation(s)
- Thurdpong Sribuhom
- Faculty of Science, Natural Products Research Unit, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Khon Kaen University, Khon Kaen, Thailand
| | - Priyapan Posri
- Faculty of Science, Natural Products Research Unit, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Khon Kaen University, Khon Kaen, Thailand
| | - Wilaiwan Khankeaw
- Faculty of Science, Natural Products Research Unit, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Khon Kaen University, Khon Kaen, Thailand
| | - Chanakan Pornchoo
- Faculty of Medicine, Department of Pharmacology, Khon Kaen University, Khon Kaen, Thailand
| | - Auemduan Prawan
- Faculty of Medicine, Department of Pharmacology, Khon Kaen University, Khon Kaen, Thailand
| | - Sarawut Tontapha
- Faculty of Science, Integrated Nanotechnology Research Centre, Department of Physics, Khon Kaen University, Khon Kaen, Thailand
| | - Vittaya Amornkitbamrung
- Faculty of Science, Integrated Nanotechnology Research Centre, Department of Physics, Khon Kaen University, Khon Kaen, Thailand
| | - Chavi Yenjai
- Faculty of Science, Natural Products Research Unit, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Khon Kaen University, Khon Kaen, Thailand
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Li XM, Pang N, Wang YF, He RJ, Ge L, Yang BY, Yang KD, Huang YL. Two new isoflavones from the barks of Dalbergia hancei Benth. Nat Prod Res 2022:1-7. [PMID: 35300550 DOI: 10.1080/14786419.2022.2048380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Two new isoflavone compounds, Dalhancei A (1) and Dalhancei B (2), along with a known compound epicatechin (3) were isolated from 80% methanol extract of the barks of Dalbergia hancei Benth. The structures of compounds 1-3 were elucidated by comparison with the literature and physical data analysis, including optical rotation, MS, 1D and 2D NMR spectra. Compounds 1 and 2 showed weak inhibitory activity against tyrosinase at 16.22 mmol/L, with inhibition rates of 42.23 ± 0.18% and 45.68 ± 0.17%, respectively; compound 1 exhibited weak inhibitory activity against α-glucosidase with the inhibition rate of 43.72 ± 0.22% at 5.41 mmol/L, compounds 2 and 3 had better α-glucosidase inhibitory activity than compound 1 with IC50 values of 0.90 ± 0.18 and 0.41 ± 0.17 mmol/L, respectively.
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Affiliation(s)
- Xiao-Mei Li
- Medical College of Guangxi University, Nanning, Guangxi, China.,Guangxi Key Laboratory of Functional Phytochemicals Research and Utilization, Guangxi Institute of Botany, China Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, Guilin, Guangxi, China
| | - Nao Pang
- Medical College of Guangxi University, Nanning, Guangxi, China
| | - Ya-Feng Wang
- Guangxi Key Laboratory of Functional Phytochemicals Research and Utilization, Guangxi Institute of Botany, China Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, Guilin, Guangxi, China
| | - Rui-Jie He
- Guangxi Key Laboratory of Functional Phytochemicals Research and Utilization, Guangxi Institute of Botany, China Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, Guilin, Guangxi, China
| | - Li Ge
- Medical College of Guangxi University, Nanning, Guangxi, China
| | - Bing-Yuan Yang
- Guangxi Key Laboratory of Functional Phytochemicals Research and Utilization, Guangxi Institute of Botany, China Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, Guilin, Guangxi, China
| | - Ke-Di Yang
- Medical College of Guangxi University, Nanning, Guangxi, China
| | - Yong-Lin Huang
- Guangxi Key Laboratory of Functional Phytochemicals Research and Utilization, Guangxi Institute of Botany, China Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, Guilin, Guangxi, China
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Yin Z, Park R, Choi BM. Isoparvifuran isolated from Dalbergia odorifera attenuates H 2O 2-induced senescence of BJ cells through SIRT1 activation and AKT/mTOR pathway inhibition. Biochem Biophys Res Commun 2020; 533:925-931. [PMID: 33010892 DOI: 10.1016/j.bbrc.2020.09.096] [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: 09/22/2020] [Accepted: 09/22/2020] [Indexed: 01/08/2023]
Abstract
Isoparvifuran is a benzofuran compound isolated from the heartwood of Dalbergia odorifera. Related research reported that isoparvifuran has antioxidant property. However, it is unclear whether isoparvifuran has anti-aging effects. In this research, we established an aging model, hydrogen peroxide (H2O2)-induced BJ cell senescence, to explore the protective effect of isoparvifuran on cell senescence and its related mechanisms. Our results revealed that isoparvifuran obviously attenuated H2O2-induced cell senescence, increased the cell proliferation rate,and reversed senescence-associated molecular markers expression such as cyclin D1, pRb, caveolin-1, ace-p53, p21 and p16. Moreover, isoparvifuran dose and time dependently increased the expression level of Sirtuin 1 (SIRT1) in BJ cells. The inhibition of SIRT1 obviously reversed the reduction of SA-β-gal activity and the alteration of senescence-associated molecular markers induced by isoparvifuran. Additionally, isoparvifuran also inhibited H2O2-induced AKT and S6 phosphorylation and increase of SA-β-gal activity. In summary, isoparvifuran protects BJ cells from H2O2-induced premature senescence, the anti-senescence effect of isoparvifuran is associated with the activation of SIRT1 and the suppression of AKT/mTOR signaling pathway.
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Affiliation(s)
- Zengsheng Yin
- Department of Anesthesiology, Affiliated Hospital of Jiujiang University, Jiujiang, 332000, China; Department of Biochemistry, School of Medicine, Wonkwang University, Iksan, 54538, Republic of Korea
| | - Raekil Park
- Department of Biomedical Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 61005, Republic of Korea.
| | - Byung-Min Choi
- Department of Biochemistry, School of Medicine, Wonkwang University, Iksan, 54538, Republic of Korea.
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Abstract
Introduction: Benzofuran is a fundamental unit in numerous bioactive heterocycles. They have attracted chemists and medical researchers due to their broad range of biological activity, where some of them possess unique anticancer, antitubercular, antidiabetic, anti-Alzheimer and anti-inflammatory properties. The benzofuran nucleus is present in a huge number of bioactive natural and synthetic compounds. Benzofuran derivatives have potent applications in pharmaceuticals, agriculture, and polymers. The recent developments considering the biological activities of benzofuran compounds are reported. They have a vital role as pronounced inhibitors against a number of diseases, viruses, fungus, microbes, and enzymes. Areas covered: This review covers the recent developments of biological activities of benzofurans during the period 2014-2019. The covered areas here comprised antimicrobial, anti-inflammatory, antitumor, antitubercular, antidiabetic, anti-Alzheimer, antioxidant, antiviral, vasorelaxant, anti-osteoporotic and enzyme inhibitory activities. Expert opinion: In addition to the already commercialized 34 benzofurans-based drugs in the market, this chapter outlines several potent benzofuran derivatives that may be useful as potential pro-drugs. It is also focused on providing details of SAR and the effect of certain functional groups on the activity of the benzofuran compounds. The presence of -OH, -OMe, sulfonamide, or halogen contributed greatly to increasing the therapeutic activities comparing with reference drugs.
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Affiliation(s)
- Kamal M Dawood
- Department of Chemistry, Faculty of Science, Cairo University , Giza , Egypt
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Henry MC, Senn HM, Sutherland A. Synthesis of Functionalized Indolines and Dihydrobenzofurans by Iron and Copper Catalyzed Aryl C-N and C-O Bond Formation. J Org Chem 2018; 84:346-364. [PMID: 30520304 DOI: 10.1021/acs.joc.8b02888] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A simple and effective one-pot, two-step intramolecular aryl C-N and C-O bond forming process for the preparation of a wide range of benzo-fused heterocyclic scaffolds using iron and copper catalysis is described. Activated aryl rings were subjected to a highly regioselective, iron(III) triflimide-catalyzed iodination, followed by a copper(I)-catalyzed intramolecular N- or O-arylation step leading to indolines, dihydrobenzofurans, and six-membered analogues. The general applicability and functional group tolerance of this method were exemplified by the total synthesis of the neolignan natural product, (+)-obtusafuran. DFT calculations using Fukui functions were also performed, providing a molecular orbital rationale for the highly regioselective arene iodination process.
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Affiliation(s)
- Martyn C Henry
- WestCHEM, School of Chemistry, The Joseph Black Building , University of Glasgow , Glasgow G12 8QQ , United Kingdom
| | - Hans Martin Senn
- WestCHEM, School of Chemistry, The Joseph Black Building , University of Glasgow , Glasgow G12 8QQ , United Kingdom
| | - Andrew Sutherland
- WestCHEM, School of Chemistry, The Joseph Black Building , University of Glasgow , Glasgow G12 8QQ , United Kingdom
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