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Wei MZ, Zhu YY, Zu WB, Wang H, Bai LY, Zhou ZS, Zhao YL, Wang ZJ, Luo XD. Structure optimizing of flavonoids against both MRSA and VRE. Eur J Med Chem 2024; 271:116401. [PMID: 38640870 DOI: 10.1016/j.ejmech.2024.116401] [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: 02/25/2024] [Revised: 04/02/2024] [Accepted: 04/06/2024] [Indexed: 04/21/2024]
Abstract
Methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant Enterococci (VRE) cause more than 100,000 deaths each year, which need efficient and non-resistant antibacterial agents. SAR analysis of 162 flavonoids from the plant in this paper suggested that lipophilic group at C-3 was crucial, and then 63 novel flavonoid derivatives were designed and total synthesized. Among them, the most promising K15 displayed potent bactericidal activity against clinically isolated MRSA and VRE (MICs = 0.25-1.00 μg/mL) with low toxicity and high membrane selectivity. Moreover, mechanism insights revealed that K15 avoided resistance by disrupting biofilm and targeting the membrane, while vancomycin caused 256 times resistance against MRSA, and ampicillin caused 16 times resistance against VRE by the same 20 generations inducing. K15 eliminated residual bacteria in mice skin MRSA-infected model (>99 %) and abdominal VRE-infected model (>92 %), which was superior to vancomycin and ampicillin.
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Affiliation(s)
- Mei-Zhen Wei
- Yunnan Characteristic Plant Extraction Laboratory, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650500, People's Republic of China
| | - Yan-Yan Zhu
- Yunnan Characteristic Plant Extraction Laboratory, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650500, People's Republic of China
| | - Wen-Biao Zu
- Yunnan Characteristic Plant Extraction Laboratory, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650500, People's Republic of China
| | - Huan Wang
- Yunnan Characteristic Plant Extraction Laboratory, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650500, People's Republic of China
| | - Li-Yu Bai
- Yunnan Characteristic Plant Extraction Laboratory, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650500, People's Republic of China
| | - Zhong-Shun Zhou
- Yunnan Characteristic Plant Extraction Laboratory, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650500, People's Republic of China
| | - Yun-Li Zhao
- Yunnan Characteristic Plant Extraction Laboratory, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650500, People's Republic of China
| | - Zhao-Jie Wang
- Yunnan Characteristic Plant Extraction Laboratory, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650500, People's Republic of China
| | - Xiao-Dong Luo
- Yunnan Characteristic Plant Extraction Laboratory, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650500, People's Republic of China; State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China.
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2
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Ramundo A, Hurtová M, Božek I, Osifová Z, Russo M, Ngoy BP, Křen V, Klán P. Multimodal Carbon Monoxide Photorelease from Flavonoids. Org Lett 2024; 26:708-712. [PMID: 38227978 PMCID: PMC10825817 DOI: 10.1021/acs.orglett.3c04141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 01/05/2024] [Accepted: 01/11/2024] [Indexed: 01/18/2024]
Abstract
Photooxygenation of flavonoids leads to the release of carbon monoxide (CO). Our structure-photoreactivity study, employing several structurally different flavonoids, including their 13C-labeled analogs, revealed that CO can be produced via two completely orthogonal pathways, depending on their hydroxy group substitution pattern and the reaction conditions. While photooxygenation of the enol 3-OH group has previously been established as the CO liberation channel, we show that the catechol-type hydroxy groups of ring B can predominantly participate in photodecarbonylation.
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Affiliation(s)
- Andrea Ramundo
- Department
of Chemistry, Faculty of Science, Masaryk
University, Kamenice 5, 625 00 Brno, Czech Republic
- RECETOX,
Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech
Republic
| | - Martina Hurtová
- Laboratory
of Biotransformation, Institute of Microbiology
of the Czech Academy of Sciences, Vídeňská 1083, 142 00 Prague, Czech Republic
| | - Igor Božek
- Department
of Chemistry, Faculty of Science, Masaryk
University, Kamenice 5, 625 00 Brno, Czech Republic
- RECETOX,
Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech
Republic
| | - Zuzana Osifová
- Institute
of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo nám. 542, 166 00 Prague, Czech Republic
| | - Marina Russo
- Department
of Chemistry, Faculty of Science, Masaryk
University, Kamenice 5, 625 00 Brno, Czech Republic
- RECETOX,
Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech
Republic
| | - Bokolombe Pitchou Ngoy
- Department
of Chemistry, Faculty of Science, Masaryk
University, Kamenice 5, 625 00 Brno, Czech Republic
- RECETOX,
Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech
Republic
| | - Vladimír Křen
- Laboratory
of Biotransformation, Institute of Microbiology
of the Czech Academy of Sciences, Vídeňská 1083, 142 00 Prague, Czech Republic
| | - Petr Klán
- Department
of Chemistry, Faculty of Science, Masaryk
University, Kamenice 5, 625 00 Brno, Czech Republic
- RECETOX,
Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech
Republic
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3
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Dong H, Yu P, Long B, Peng T, He Y, Xu B, Liao L, Lu L. Total Synthesis of Kuwanons A and B and Discovery of Their Antibacterial Mechanism. JOURNAL OF NATURAL PRODUCTS 2023; 86:2022-2030. [PMID: 37499116 DOI: 10.1021/acs.jnatprod.3c00466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Abstract
Kuwanons A (1) and B (2) are two natural prenylated flavones isolated from the root bark of Morus alba L. In this study, the first total syntheses of kuwanons A (1) and B (2) were achieved from a common intermediate with overall yields of 6.6% and 11.6%, respectively. Kuwanon B (2) exhibited antibacterial activity against Gram-positive bacteria and concentration-dependent bactericidal activity against Staphylococcus aureus bacteria. Preliminary mechanism of action studies suggested that this compound killed bacteria rapidly by disrupting bacterial membrane integrity.
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Affiliation(s)
- Hongbo Dong
- Engineering Research Center for Pharmaceuticals and Equipment of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, People's Republic of China
- Anti-infective Agent Creation Engineering Research Centre of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, People's Republic of China
| | - Pei Yu
- Engineering Research Center for Pharmaceuticals and Equipment of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, People's Republic of China
| | - Bin Long
- Engineering Research Center for Pharmaceuticals and Equipment of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, People's Republic of China
| | - Ting Peng
- Anti-infective Agent Creation Engineering Research Centre of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, People's Republic of China
| | - Yujiao He
- Anti-infective Agent Creation Engineering Research Centre of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, People's Republic of China
| | - Bing Xu
- Department of Pediatric Surgery, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu 610072, People's Republic of China
| | - Li Liao
- Anti-infective Agent Creation Engineering Research Centre of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, People's Republic of China
| | - Lan Lu
- Anti-infective Agent Creation Engineering Research Centre of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, People's Republic of China
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Dong H, Wu M, Xiang S, Song T, Li Y, Long B, Feng C, Shi Z. Total Syntheses and Antibacterial Evaluations of Neocyclomorusin and Related Flavones. JOURNAL OF NATURAL PRODUCTS 2022; 85:2217-2225. [PMID: 36062892 DOI: 10.1021/acs.jnatprod.2c00658] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Neocyclomorusin (1), a natural bioactive pyranoflavone mainly isolated from plants of the Moraceae family, was synthesized for the first time using a Friedel-Crafts reaction, a Baker-Venkataraman (BK-VK) rearrangement, a selective epoxidation, and a novel SN2-type cyclization as the key steps. The present protocol was also successfully applied for the total synthesis of oxyisocyclointegrin (2). Structurally related natural products morusin (23) and cudraflavone B (24) were also prepared. We investigated the antibacterial activities of these natural compounds against both Gram-negative and Gram-positive strains. The prenylated flavones, morusin (23) and cudraflavone B (24), showed comparable activity to ampicillin and kanacycin A against Staphylococcus aureus. Both morusin (23) and cudraflavone B (24) showed better antibacterial activities than ampicillin against the Gram-positive bacteria Staphylococcus epidermidis and Bacillus subtilis. Both neocyclomorusin (1) and oxyisocyclointegrin (2) displayed disappointing antimicrobial activities against Escherichia coli, Staphylococcus aureus, Staphylococcus epidermidis, and Bacillus subtilis strains.
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Affiliation(s)
- Hongbo Dong
- Clinical Medical College & Affiliated Hospital, Chengdu University, Chengdu 610106, China
- School of Pharmacy, Chengdu University, Chengdu 610106, China
| | - Min Wu
- School of Pharmacy, Chengdu University, Chengdu 610106, China
- School of Food and Biological Engineering, Chengdu University, Chengdu 610106, China
| | - Shengwei Xiang
- School of Pharmacy, Chengdu University, Chengdu 610106, China
- School of Food and Biological Engineering, Chengdu University, Chengdu 610106, China
| | - Tao Song
- School of Pharmacy, Chengdu University, Chengdu 610106, China
| | - Ying Li
- School of Pharmacy, Chengdu University, Chengdu 610106, China
| | - Bin Long
- School of Pharmacy, Chengdu University, Chengdu 610106, China
| | - Chuanling Feng
- School of Pharmacy, Chengdu University, Chengdu 610106, China
| | - Zheng Shi
- Clinical Medical College & Affiliated Hospital, Chengdu University, Chengdu 610106, China
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Li C, Li M, Xie Y, Yu Y, Huang F. Progress in the Synthesis of Pyrrole-2-carboxylate Catalyzed by Transition Metals. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202006048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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6
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Dallman J, Lansakara A, Nguyen T, Weeramange C, Hulangamuwa W, Rafferty RJ. The winding road of the uvaretin class of natural products: from total synthesis to bioactive agent discovery. MEDCHEMCOMM 2019; 10:1420-1431. [PMID: 31673309 DOI: 10.1039/c9md00052f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 06/06/2019] [Indexed: 12/25/2022]
Abstract
Herein, we disclose the development of a synthetic route to gain access to the uvaretin class of chalcone natural products. In this, the construction of a small library was achieved, and the collection was evaluated for cytotoxicity and other biological properties. Uvaretin (1) was accessed via a seven-step route in an overall yield of 15.1%. Within this route, the unsaturated enone variant of uvaretin (2), also a natural product, was accessed in a 16.7% yield over six steps. This route provides a nearly three-fold increase in yields of 1 and 2 in comparison to the previous synthetic route accessing them in 5.8% and 3.0% overall yields, respectively. Evaluation of 1 and 2 revealed IC50 values between 2.0 and 5.1 μM in the cancerous cell lines HeLa, U937, A549, and MIA PaCa-2. Screening of the whole chalcone library set led to the discovery of over 30 compounds, within six cancerous cell lines, possessing single digit μM IC50 activity as sole agents. Furthermore, multiple library members were found to possess promising potentiating properties with known chemotherapeutic agents.
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Affiliation(s)
- Johnathan Dallman
- Department of Chemistry , Kansas State University , 1212 Mid-Campus Drive North , Manhattan , KS 66506 , USA .
| | - Ashabha Lansakara
- Department of Chemistry , Kansas State University , 1212 Mid-Campus Drive North , Manhattan , KS 66506 , USA .
| | - Thi Nguyen
- Department of Chemistry , Kansas State University , 1212 Mid-Campus Drive North , Manhattan , KS 66506 , USA .
| | - Chamitha Weeramange
- Department of Chemistry , Kansas State University , 1212 Mid-Campus Drive North , Manhattan , KS 66506 , USA .
| | - Wasundara Hulangamuwa
- Department of Chemistry , Kansas State University , 1212 Mid-Campus Drive North , Manhattan , KS 66506 , USA .
| | - Ryan J Rafferty
- Department of Chemistry , Kansas State University , 1212 Mid-Campus Drive North , Manhattan , KS 66506 , USA .
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Heravi MM, Zadsirjan V, Saedi P, Momeni T. Applications of Friedel-Crafts reactions in total synthesis of natural products. RSC Adv 2018; 8:40061-40163. [PMID: 35558228 PMCID: PMC9091380 DOI: 10.1039/c8ra07325b] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Accepted: 11/03/2018] [Indexed: 12/17/2022] Open
Abstract
Over the years, Friedel-Crafts (FC) reactions have been acknowledged as the most useful and powerful synthetic tools for the construction of a special kind of carbon-carbon bond involving an aromatic moiety. Its stoichiometric and, more recently, its catalytic procedures have extensively been studied. This reaction in recent years has frequently been used as a key step (steps) in the total synthesis of natural products and targeted complex bioactive molecules. In this review, we try to underscore the applications of intermolecular and intramolecular FC reactions in the total syntheses of natural products and complex molecules, exhibiting diverse biological properties.
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Affiliation(s)
- Majid M Heravi
- Department of Chemistry, School of Science, Alzahra University Vanak Tehran Iran +98 2188041344 +98 9121329147
| | - Vahideh Zadsirjan
- Department of Chemistry, School of Science, Alzahra University Vanak Tehran Iran +98 2188041344 +98 9121329147
| | - Pegah Saedi
- Department of Chemistry, School of Science, Alzahra University Vanak Tehran Iran +98 2188041344 +98 9121329147
| | - Tayebeh Momeni
- Department of Chemistry, School of Science, Alzahra University Vanak Tehran Iran +98 2188041344 +98 9121329147
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9
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Boonyaketgoson S, Rukachaisirikul V, Phongpaichit S, Trisuwan K. Cytotoxic arylbenzofuran and stilbene derivatives from the twigs of Artocarpus heterophyllus. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.03.020] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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