1
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Zhang ZY, Gao XH, Huang Y, Fan YY, Yue JM. Drymariamides A-J, Antiadipogenic Cyclopeptides Incorporating Noncanonical Amino Acids from Drymaria cordata. JOURNAL OF NATURAL PRODUCTS 2024; 87:1441-1453. [PMID: 38722764 DOI: 10.1021/acs.jnatprod.4c00246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
Herein, we report an extensive phytochemical study on the whole plant of Drymaria cordata, which led to the isolation of ten new orbitides, named drymariamides A-J (1-10). Compounds 2, 3, and 5 incorporate rare residues of noncanonical amino acids of kynurenine (Kyn) or 3a-hydroxypyrroloindoline (HPI). Their structures with absolute configurations were elucidated by a combination of spectroscopic analysis, advanced Marfey's method, X-ray diffraction, and electronic circular dichroism analysis. Compounds 1-10 exhibited antiadipogenic effects in 3T3-L1 adipocytes, and the most potent compound 7 showed an EC50 value of 1.17 ± 0.19 μM.
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Affiliation(s)
- Zong-Yi Zhang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, People's Republic of China
- University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, People's Republic of China
| | - Xin-Hua Gao
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, People's Republic of China
| | - Yi Huang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, People's Republic of China
- University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, People's Republic of China
| | - Yao-Yue Fan
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, People's Republic of China
- Shandong Laboratory of Yantai Drug Discovery, Bohai Rim Advanced Research Institute for Drug Discovery, 198 East Binhai Road, Yantai, Shandong 264117, People's Republic of China
| | - Jian-Min Yue
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, People's Republic of China
- University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, People's Republic of China
- Shandong Laboratory of Yantai Drug Discovery, Bohai Rim Advanced Research Institute for Drug Discovery, 198 East Binhai Road, Yantai, Shandong 264117, People's Republic of China
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2
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Wennrich JP, Ebada SS, Sepanian E, Holzenkamp C, Khalid SJ, Schrey H, Maier W, Mándi A, Kurtán T, Ashrafi S, Stadler M. Omnipolyphilins A and B: Chlorinated Cyclotetrapeptides and Naphtho-α-pyranones from the Plant Nematode-Derived Fungus Polyphilus sieberi. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:6998-7009. [PMID: 38507729 PMCID: PMC10995996 DOI: 10.1021/acs.jafc.4c00572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 02/29/2024] [Accepted: 03/05/2024] [Indexed: 03/22/2024]
Abstract
Chemical exploration for two isolates of the recently described ascomycete species Polyphilus sieberi, derived from the eggs of the plant parasitic nematode Heterodera filipjevi, afforded the identification of many compounds that belong to various metabolite families: two previously undescribed chlorinated cyclotetrapeptides, omnipolyphilins A (1) and B (2), one new pyranonaphthoquinone, ventiloquinone P (3), a 6,6'-binaphto-α-pyranone dimer, talaroderxine D (4) in addition to nine known metabolites (5-13) were isolated from this biocontrol candidate. All isolated compounds were characterized by comprehensive 1D, 2D NMR, and HR-ESI-MS analyses. The absolute configurations of the cyclotetrapeptides were determined by a combination of advanced Marfey's method, ROE correlation aided by conformational analysis, and TDDFT-ECD calculations, while ECD calculations, Mosher's method, and experimental ECD spectra were used for ventiloquinone P (3) and talaroderxine D (4). Among the isolated compounds, talaroderxine D (4) showed potent antimicrobial activities against Bacillus subtilis and Staphylococcus aureus with MIC values of 2.1 and 8.3 μg mL-1, respectively. Additionally, promising inhibitory effects on talaroderxine D (4) against the formation of S. aureus biofilms were observed up to a concentration of 0.25 μg mL-1. Moreover, ophiocordylongiiside A (10) showed activity against the free-living nematode Caenorhabditis elegans.
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Affiliation(s)
- Jan-Peer Wennrich
- Department
of Microbial Drugs, Helmholtz Centre for
Infection Research GmbH (HZI) and German Centre for Infection Research
(DZIF), Inhoffenstraße 7, 38124 Braunschweig, Germany
- Institute
of Microbiology, Technische Universität
Braunschweig, Spielmannstraße
7, 38106 Braunschweig, Germany
| | - Sherif S. Ebada
- Department
of Microbial Drugs, Helmholtz Centre for
Infection Research GmbH (HZI) and German Centre for Infection Research
(DZIF), Inhoffenstraße 7, 38124 Braunschweig, Germany
- Department
of Pharmacognosy, Faculty of Pharmacy, Ain
Shams University, 11566 Cairo, Egypt
| | - Ellen Sepanian
- Department
of Microbial Drugs, Helmholtz Centre for
Infection Research GmbH (HZI) and German Centre for Infection Research
(DZIF), Inhoffenstraße 7, 38124 Braunschweig, Germany
| | - Caren Holzenkamp
- Department
of Microbial Drugs, Helmholtz Centre for
Infection Research GmbH (HZI) and German Centre for Infection Research
(DZIF), Inhoffenstraße 7, 38124 Braunschweig, Germany
- Institute
of Microbiology, Technische Universität
Braunschweig, Spielmannstraße
7, 38106 Braunschweig, Germany
| | - Syeda J. Khalid
- Department
of Microbial Drugs, Helmholtz Centre for
Infection Research GmbH (HZI) and German Centre for Infection Research
(DZIF), Inhoffenstraße 7, 38124 Braunschweig, Germany
- Institute
of Microbiology, Technische Universität
Braunschweig, Spielmannstraße
7, 38106 Braunschweig, Germany
| | - Hedda Schrey
- Department
of Microbial Drugs, Helmholtz Centre for
Infection Research GmbH (HZI) and German Centre for Infection Research
(DZIF), Inhoffenstraße 7, 38124 Braunschweig, Germany
- Institute
of Microbiology, Technische Universität
Braunschweig, Spielmannstraße
7, 38106 Braunschweig, Germany
| | - Wolfgang Maier
- Institute
for Epidemiology and Pathogen Diagonstics, Julius Kühn Institut (JKI) - Federal Research Center for Cultivated
Plants, Messeweg 11-12, 38104 Braunschweig, Germany
| | - Attila Mándi
- Department
of Organic Chemistry, University of Debrecen, P.O. Box 400, 4002 Debrecen, Hungary
| | - Tibor Kurtán
- Department
of Organic Chemistry, University of Debrecen, P.O. Box 400, 4002 Debrecen, Hungary
| | - Samad Ashrafi
- Institute
for Epidemiology and Pathogen Diagonstics, Julius Kühn Institut (JKI) - Federal Research Center for Cultivated
Plants, Messeweg 11-12, 38104 Braunschweig, Germany
- Institute
for Crop and Soil Science, Julius Kühn
Institute (JKI) − Federal Research Centre for Cultivated Plants, Bundesallee 58, 38116 Braunschweig, Germany
| | - Marc Stadler
- Department
of Microbial Drugs, Helmholtz Centre for
Infection Research GmbH (HZI) and German Centre for Infection Research
(DZIF), Inhoffenstraße 7, 38124 Braunschweig, Germany
- Institute
of Microbiology, Technische Universität
Braunschweig, Spielmannstraße
7, 38106 Braunschweig, Germany
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3
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Jiang X, Gao L, Li Z, Shen Y, Lin ZH. Development and Challenges of Cyclic Peptides for Immunomodulation. Curr Protein Pept Sci 2024; 25:353-375. [PMID: 37990433 DOI: 10.2174/0113892037272528231030074158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Revised: 09/12/2023] [Accepted: 09/15/2023] [Indexed: 11/23/2023]
Abstract
Cyclic peptides are polypeptide chains formed by cyclic sequences of amide bonds between protein-derived or non-protein-derived amino acids. Compared to linear peptides, cyclic peptides offer several unique advantages, such as increased stability, stronger affinity, improved selectivity, and reduced toxicity. Cyclic peptide has been proved to have a promising application prospect in the medical field. In addition, this paper mainly describes that cyclic peptides play an important role in anti-cancer, anti-inflammatory, anti-virus, treatment of multiple sclerosis and membranous nephropathy through immunomodulation. In order to know more useful information about cyclic peptides in clinical research and drug application, this paper also summarizes cyclic peptides currently in the clinical trial stage and cyclic peptide drugs approved for marketing in the recent five years. Cyclic peptides have many advantages and great potential in treating various diseases, but there are still many challenges to be solved in the development process of cyclic peptides.
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Affiliation(s)
- Xianqiong Jiang
- School of Pharmacy and Bioengineering, Chongqing University of Technology, 405400 Chongqing, China
| | - Li Gao
- School of Pharmacy and Bioengineering, Chongqing University of Technology, 405400 Chongqing, China
| | - Zhilong Li
- School of Pharmacy and Bioengineering, Chongqing University of Technology, 405400 Chongqing, China
| | - Yan Shen
- School of Pharmacy and Bioengineering, Chongqing University of Technology, 405400 Chongqing, China
- Chongqing Key Laboratory of Medicinal Chemistry & Molecular Pharmacology, Chongqing University of Technology, Chongqing 400054, China
- Chongqing Key Laboratory of Target Based Drug Screening and Activity Evaluation, Chongqing University of Technology, Chongqing 400054, China
| | - Zhi-Hua Lin
- School of Pharmacy and Bioengineering, Chongqing University of Technology, 405400 Chongqing, China
- Chongqing College of Traditional Chinese Medicine, 402760
- Chongqing Key Laboratory of Medicinal Chemistry & Molecular Pharmacology, Chongqing University of Technology, Chongqing 400054, China
- Chongqing Key Laboratory of Target Based Drug Screening and Activity Evaluation, Chongqing University of Technology, Chongqing 400054, China
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4
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Yadav Y, Singh K, Sharma S, Mishra VK, Sagar R. Recent Efforts in Identification of Privileged Scaffolds as Antiviral Agents. Chem Biodivers 2023; 20:e202300921. [PMID: 37589569 DOI: 10.1002/cbdv.202300921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 08/08/2023] [Accepted: 08/17/2023] [Indexed: 08/18/2023]
Abstract
Viral infections are the most important health concern nowadays to mankind, which is unexpectedly increasing the health complications and fatality rate worldwide. The recent viral infection outbreak developed a pressing need for small molecules that can be quickly deployed for the control/treatment of re-emerging or new emerging viral infections. Numerous viruses, including the human immunodeficiency virus (HIV), hepatitis, influenza, SARS-CoV-1, SARS-CoV-2, and others, are still challenging due to emerging resistance to known drugs. Therefore, there is always a need to search for new antiviral small molecules that can combat viral infection with new modes of action. This review highlighted recent progress in developing new antiviral molecules based on natural product-inspired scaffolds. Herein, the structure-activity relationship of the FDA-approved drugs along with the molecular docking studies of selected compounds have been discussed against several target proteins. The findings of new small molecules as neuraminidase inhibitors, other than known drug scaffolds, Anti-HIV and SARS-CoV are incorporated in this review paper.
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Affiliation(s)
- Yogesh Yadav
- Glycochemistry Laboratory, School of Physical Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Kavita Singh
- Glycochemistry Laboratory, School of Physical Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Sunil Sharma
- Glycochemistry Laboratory, School of Physical Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Vinay Kumar Mishra
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
| | - Ram Sagar
- Glycochemistry Laboratory, School of Physical Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
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5
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Liu Q, Zhang C, Fang H, Yi L, Li M. Indispensable Biomolecules for Plant Defense Against Pathogens: NBS-LRR and "nitrogen pool" Alkaloids. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2023:111752. [PMID: 37268110 DOI: 10.1016/j.plantsci.2023.111752] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 05/29/2023] [Accepted: 05/30/2023] [Indexed: 06/04/2023]
Abstract
In a complex natural environment, plants have evolved intricate and subtle defense response regulatory mechanisms for survival. Plant specific defenses, including the disease resistance protein nucleotide-binding site leucine-rich repeat (NBS-LRR) protein and metabolite derived alkaloids, are key components of these complex mechanisms. The NBS-LRR protein can specifically recognize the invasion of pathogenic microorganisms to trigger the immune response mechanism. Alkaloids, synthesized from amino acids or their derivatives, can also inhibit pathogens. This study reviews NBS-LRR protein activation, recognition, and downstream signal transduction in plant protection, as well as the synthetic signaling pathways and regulatory defense mechanisms associated with alkaloids. In addition, we clarify the basic regulation mechanism and summarize their current applications and the development of future applications in biotechnology for these plant defense molecules. Studies on the NBS-LRR protein and alkaloid plant disease resistance molecules may provide a theoretical foundation for the cultivation of disease resistant crops and the development of botanical pesticides.
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Affiliation(s)
- Qian Liu
- Inner Mongolia Hospital of Traditional Chinese Medicine, Hohhot, China; Baotou Medical College, Inner Mongolia Key Laboratory of Characteristic Geoherbs Resources Protection and Utilization, Inner Mongolia Engineering Research Center of The Planting and Development of Astragalus membranaceus of the Geoherbs, Baotou, China
| | - Chunhong Zhang
- Baotou Medical College, Inner Mongolia Key Laboratory of Characteristic Geoherbs Resources Protection and Utilization, Inner Mongolia Engineering Research Center of The Planting and Development of Astragalus membranaceus of the Geoherbs, Baotou, China
| | - Huiyong Fang
- Hebei University of Chinese Medicine, Traditional Chinese Medicine Processing Technology Innovation Center of Hebei Province, Shijiazhuang, China.
| | - Letai Yi
- Inner Mongolia Medical University, Hohhot, China.
| | - Minhui Li
- Inner Mongolia Hospital of Traditional Chinese Medicine, Hohhot, China; Baotou Medical College, Inner Mongolia Key Laboratory of Characteristic Geoherbs Resources Protection and Utilization, Inner Mongolia Engineering Research Center of The Planting and Development of Astragalus membranaceus of the Geoherbs, Baotou, China; Inner Mongolia Institute of Traditional Chinese and Mongolian Medicine, Hohhot, China.
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6
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Han YQ, Zhang Q, Xu WF, Hai Y, Chao R, Wang CF, Hou XM, Wei MY, Gu YC, Wang CY, Shao CL. Targeted isolation of antitubercular cycloheptapeptides and an unusual pyrroloindoline-containing new analog, asperpyrroindotide A, using LC-MS/MS-based molecular networking. MARINE LIFE SCIENCE & TECHNOLOGY 2023; 5:85-93. [PMID: 36713278 PMCID: PMC9854410 DOI: 10.1007/s42995-022-00157-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 10/17/2022] [Indexed: 06/02/2023]
Abstract
UNLABELLED Further insights on the secondary metabolites of a soft coral-derived fungus Aspergillus versicolor under the guidance of MS/MS-based molecular networking led to the isolation of seven known cycloheptapeptides, namely, asperversiamides A-C (1-3) and asperheptatides A-D (4-7) and an unusual pyrroloindoline-containing new cycloheptapeptide, asperpyrroindotide A (8). The structure of 8 was elucidated by comprehensive spectroscopic data analysis, and its absolute configuration was determined by advanced Marfey's method. The semisynthetic transformation of 1 into 8 was successfully achieved and the reaction conditions were optimized. Additionally, a series of new derivatives (10-19) of asperversiamide A (1) was semi-synthesized and their anti-tubercular activities were evaluated against Mycobacterium tuberculosis H37Ra. The preliminary structure-activity relationships revealed that the serine hydroxy groups and the tryptophan residue are important to the activity. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s42995-022-00157-8.
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Affiliation(s)
- Yi-Qian Han
- Key Laboratory of Marine Drugs, the Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003 China
| | - Qun Zhang
- Key Laboratory of Marine Drugs, the Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003 China
| | - Wei-Feng Xu
- Key Laboratory of Marine Drugs, the Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003 China
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004 China
| | - Yang Hai
- Key Laboratory of Marine Drugs, the Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003 China
| | - Rong Chao
- Key Laboratory of Marine Drugs, the Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003 China
| | - Cui-Fang Wang
- Key Laboratory of Marine Drugs, the Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003 China
| | - Xue-Mei Hou
- Key Laboratory of Marine Drugs, the Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003 China
| | - Mei-Yan Wei
- Key Laboratory of Marine Drugs, the Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003 China
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266003 China
| | - Yu-Cheng Gu
- Syngenta Jealott’s Hill International Research Centre, Bracknell, Berkshire RG42 6EY UK
| | - Chang-Yun Wang
- Key Laboratory of Marine Drugs, the Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003 China
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237 China
| | - Chang-Lun Shao
- Key Laboratory of Marine Drugs, the Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003 China
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237 China
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7
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Liu YF, Yu SS. Survey of natural products reported by Asian research groups in 2021. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2022; 24:905-924. [PMID: 36111695 DOI: 10.1080/10286020.2022.2117169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 08/21/2022] [Accepted: 08/22/2022] [Indexed: 06/15/2023]
Abstract
The new natural products reported in 2021 in peer-reviewed articles in journals with good reputations were reviewed and analyzed. The advances made by Asian research groups in the field of natural products chemistry in 2021 were summarized. Compounds with unique structural features and/or promising bioactivities originating from Asian natural sources were discussed based on their structural classification.
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Affiliation(s)
- Yan-Fei Liu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Shi-Shan Yu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
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8
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Kakumu Y, Thi Nguyen MT, Mitsunaga T. Molecular networking-based discovery of anti-inflammatory chromene dimers from Melicope pteleifolia. PHYTOCHEMISTRY 2022; 202:113322. [PMID: 35839858 DOI: 10.1016/j.phytochem.2022.113322] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 06/16/2022] [Accepted: 07/08/2022] [Indexed: 06/15/2023]
Abstract
With the aid of a feature-based molecular networking strategy, five undescribed C2 and C1 symmetric chromene dimers, namely, melptelchromenes A-E, were isolated from the leaves of Melicope pteleifolia. Four asymmetric dimers were found to be racemates and were resolved by chiral phase HPLC analyses. Their structures, including absolute configurations, were elucidated by HRMS, NMR spectroscopy, and quantum mechanical calculations of ECD spectra and NMR chemical shifts. Melptelchromenes A-D possess a unique ethylidene linkage via two 2H-chromene cores, while melptelchromene E represents the first example of a dimeric chromene featuring a 1,3-diarylbutan-1-ol moiety. Of these compounds, 6,6'-linked dimeric chromenes showed nitric oxide inhibitory activities on lipopolysaccharide-induced RAW 264 cells, and (-)- and (+)-melptelchromene E were the two most potent compounds (IC50, 3.0 and 5.1 μM, respectively).
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Affiliation(s)
- Yuya Kakumu
- The United Graduate School of Agricultural Science, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan.
| | - Minh Tu Thi Nguyen
- School of Biotechnology and Food Technology, Hanoi University of Science and Technology, 1 Dai Co Viet Road, Hanoi, 11615, Viet Nam; New Industry Creation Hatchery Center (NICHe), Tohoku University, 6-6-10 Aramaki Aza-Aoba, Aoba-ku, Sendai, 980-8579, Japan
| | - Tohru Mitsunaga
- The United Graduate School of Agricultural Science, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan; Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan.
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9
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Jang J, Lee J, Lee SB, Choi SH, Park EJ, Yoon SJ, An JS, Oh DC, Oh WK, Hong S. Total Synthesis of Melicoptelines C-E: Antiviral Cyclopeptides Containing a Hexahydropyrrolo[2,3- b]indole Moiety. Org Lett 2022; 24:6043-6048. [PMID: 35943240 DOI: 10.1021/acs.orglett.2c02339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Melicoptelines, natural cyclopeptides containing a 3a-hydroxy hexahydropyrrolo[2,3-b]indole (HPI) moiety, exhibit anti-influenza activity. Herein, we report the first total synthesis of melicoptelines C-E (1-3, respectively). The core 3a-hydroxy HPIs were synthesized in a diastereoselective manner from l-tryptophan using dimethyldioxirane-mediated oxidation. Subsequently, sequential peptide couplings and cyclization completed the synthesis of melicoptelines C-E and unnatural melicopteline 4. The synthesized melicoptelines were evaluated for their anti-influenza activity, and melicopteline E showed the most potent inhibition of cytopathic effects.
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Affiliation(s)
- Joonseok Jang
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Jinwoo Lee
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Seok Beom Lee
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Seung Hyun Choi
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Eun Jin Park
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Sang Jun Yoon
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Joon Soo An
- Natural Products Research Institute, College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Dong-Chan Oh
- Natural Products Research Institute, College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Won Keun Oh
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Suckchang Hong
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
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10
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Hu X, Li R, Chen J, Mu Q. Synthesis and anti‐hepatocellular carcinoma activity
in vitro
of cyclic peptide
GG
‐8‐6 analogues. J Heterocycl Chem 2021. [DOI: 10.1002/jhet.4397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Xiao‐Zhi Hu
- School of Pharmacy Fudan University Shanghai China
| | | | - Jie‐Tao Chen
- School of Pharmacy Fudan University Shanghai China
| | - Qing Mu
- School of Pharmacy Fudan University Shanghai China
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11
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Hill RA, Sutherland A. Hot off the Press. Nat Prod Rep 2021. [DOI: 10.1039/d1np90005f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A personal selection of 32 recent papers is presented covering various aspects of current developments in bioorganic chemistry and novel natural products such as pedrolide from Euphorbia pedroi.
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Affiliation(s)
- Robert A. Hill
- School of Chemistry, Glasgow University, Glasgow, G12 8QQ, UK
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