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Dong H, Liao L, Yu P, Long B, Che Y, Lu L, Xu B. Total syntheses and antibacterial evaluations of cudraflavones A-C and related Flavones. Bioorg Chem 2023; 140:106764. [PMID: 37573609 DOI: 10.1016/j.bioorg.2023.106764] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Revised: 07/15/2023] [Accepted: 08/02/2023] [Indexed: 08/15/2023]
Abstract
The total syntheses of the natural prenylated flavones cudraflavones A-C (1-3), artoheterophyllin D (28) and artelasticin (29) are reported, along with the evaluations of their antibacterial activities. The key steps of the synthesis involved a Baker-Venkataraman rearrangement and an intramolecular cyclization for the construction of the flavone core and the regioselective formation of the pyran and isopentenyl scaffolds. The tested natural flavones 1-3 and 27-29 exhibited potent activity against S. aureus ATCC 29213, S. epidermidis ATCC 14990, E. faecalis ATCC 29212 and B. subtilis ATCC 6633 with MIC values ranging from 0.125 μg/mL to 16 μg/mL. Compound 3 displayed the strongest potency, with MIC values in the range between 0.125 and 1 μg/mL, as a potential candidate to combat G+ bacterial infections. Preliminary mechanism of action studies suggested that this compound killed bacteria 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, PR China; Anti-infective Agent Creation Engineering Research Centre of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, PR China
| | - Li Liao
- Engineering Research Center for Pharmaceuticals and Equipment of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, PR China; Anti-infective Agent Creation Engineering Research Centre of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, PR China
| | - Pei Yu
- Engineering Research Center for Pharmaceuticals and Equipment of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, PR China
| | - Bin Long
- Engineering Research Center for Pharmaceuticals and Equipment of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, PR China
| | - Yufei Che
- Engineering Research Center for Pharmaceuticals and Equipment of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, PR China
| | - Lan Lu
- Anti-infective Agent Creation Engineering Research Centre of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, PR China
| | - Bing Xu
- Department of Pediatric Surgery, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu 610072, PR China.
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Wang R, Fu Y, Ma R, Jin H, Zhao W. Total Synthesis of Lineaflavones A, C, D, and Analogues. Molecules 2023; 28:molecules28052373. [PMID: 36903616 PMCID: PMC10005778 DOI: 10.3390/molecules28052373] [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: 02/14/2023] [Revised: 02/27/2023] [Accepted: 03/01/2023] [Indexed: 03/08/2023] Open
Abstract
The first total synthesis of lineaflavones A, C, D, and their analogues has been accomplished. The key synthetic steps include aldol/oxa-Michael/dehydration sequence reactions to assemble the tricyclic core, Claisen rearrangement and Schenck ene reaction to construct the key intermediate, and selective substitution or elimination of tertiary allylic alcohol to obtain natural compounds. In addition, we also explored five new routes to synthesize fifty-three natural product analogues, which can contribute to a systematic structure-activity relationship during biological evaluation.
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Affiliation(s)
- Rui Wang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Key Laboratory of Molecular Drug Research and KLMDASR of Tianjin, Nankai University, Tongyan Road, Haihe Education Park, Tianjin 300350, China
| | - Yu Fu
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Key Laboratory of Molecular Drug Research and KLMDASR of Tianjin, Nankai University, Tongyan Road, Haihe Education Park, Tianjin 300350, China
- Tianjin International Joint Academy of Biomedicine, Tianjin 300457, China
| | - Ran Ma
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Key Laboratory of Molecular Drug Research and KLMDASR of Tianjin, Nankai University, Tongyan Road, Haihe Education Park, Tianjin 300350, China
- Tianjin International Joint Academy of Biomedicine, Tianjin 300457, China
| | - Hongzhen Jin
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Key Laboratory of Molecular Drug Research and KLMDASR of Tianjin, Nankai University, Tongyan Road, Haihe Education Park, Tianjin 300350, China
- Correspondence: (H.J.); (W.Z.)
| | - Wei Zhao
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Key Laboratory of Molecular Drug Research and KLMDASR of Tianjin, Nankai University, Tongyan Road, Haihe Education Park, Tianjin 300350, China
- Correspondence: (H.J.); (W.Z.)
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3
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Sagitova EF, Tomilin DN, Sobenina LN, Ushakov IA, Apartsin KA, Trofimov BA. Acyl-tetrahydroindolyl-capped 1,3-diynes in oxidative [4 + 2]-cycloaddition with benzylamine: a one-pot access to 2-acyl-6-phenyl-5-tetrahydroindolylpyridines. MENDELEEV COMMUNICATIONS 2022. [DOI: 10.1016/j.mencom.2022.11.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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4
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Phang YL, Liu S, Zheng C, Xu H. Recent advances in the synthesis of natural products containing the phloroglucinol motif. Nat Prod Rep 2022; 39:1766-1802. [PMID: 35762867 DOI: 10.1039/d1np00077b] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Covering: June 2009 to 2021Natural products containing a phloroglucinol motif include simple and oligomeric phloroglucinols, polycyclic polyprenylated acylphloroglucinols, phloroglucinol-terpenes, xanthones, flavonoids, and coumarins. These compounds represent a major class of secondary metabolites which exhibit a wide range of biological activities such as antimicrobial, anti-inflammatory, antioxidant and hypoglycaemic properties. A number of these compounds have been authorized for therapeutic use or are currently being studied in clinical trials. Their structural diversity and utility in both traditional and conventional medicine have made them popular synthetic targets over the years. In this review, we compile and summarise the recent synthetic approaches to the natural products bearing a phloroglucinol motif. Focus has been given on ingenious strategies to functionalize the phloroglucinol moiety at multiple positions. The isolation and bioactivities of the compounds are also provided.
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Affiliation(s)
- Yee Lin Phang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China. .,Engineering Research Center of Shanghai Colleges for TCM New Drug Discovery, Shanghai 201203, China
| | - Song Liu
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China. .,Engineering Research Center of Shanghai Colleges for TCM New Drug Discovery, Shanghai 201203, China
| | - Changwu Zheng
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China. .,Engineering Research Center of Shanghai Colleges for TCM New Drug Discovery, Shanghai 201203, China
| | - Hongxi Xu
- Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
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5
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Facile synthesis of coumaronochromones through palladium-catalyzed intramolecular cross dehydrogenative coupling. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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6
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Alizadeh A, Bagherinejad A. A Catalyst‐Free Synthetic Route to Modified Isoflavone
via
Multi‐Component Reaction. ChemistrySelect 2020. [DOI: 10.1002/slct.201904674] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Abdolali Alizadeh
- Department of ChemistryTarbiat Modares University, P.O. Box 14115-175 Tehran Iran
| | - Akram Bagherinejad
- Department of ChemistryTarbiat Modares University, P.O. Box 14115-175 Tehran Iran
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7
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Palladium(II)-Catalyzed Efficient Synthesis of Wedelolactone and Evaluation as Potential Tyrosinase Inhibitor. Molecules 2019; 24:molecules24224130. [PMID: 31731595 PMCID: PMC6891477 DOI: 10.3390/molecules24224130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 11/03/2019] [Accepted: 11/13/2019] [Indexed: 11/17/2022] Open
Abstract
Tyrosinase is an enzyme widely distributed in nature, which has multiple functions, especially in the melanin biosynthesis pathway. Despite the few clinically available tyrosinase inhibitors for whitening, a great demand remains for novel compounds with low side effects in terms of potential carcinogenicity and improved clinical efficacy. A natural product, wedelolactone (WEL), with a polyhydroxyl moiety, attracted our attention as a potential tyrosinase inhibitor. Before we studied the biological activity of the natural product, a synthetic methodological research was firstly carried to obtain enough raw material. WEL could be obtained efficiently through palladium-catalyzed boronation/coupling reactions and 2,3-dicyano-5,6-dichlorobenzoquinone (DDQ)-involved oxidative deprotection/annulation reactions. Immediately after, the natural product was proven to be an efficient tyrosinase inhibitor. In conclusion, we developed a mild and efficient approach for the preparation of WEL, and the natural product was disclosed to have anti-tyrosinase activity, which could be widely used in multiple fields.
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Xuan B, Du X, Li X, Shen Z. A new potent immunosuppressive isoflavanonol from Campylotropis hirtella. Nat Prod Res 2015. [DOI: 10.1080/14786419.2015.1063053] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Bixia Xuan
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xing Du
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xiaoping Li
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Zhengwu Shen
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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9
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Gram-scale synthesis of anti-pancreatic flavonoids (±)-8-[1-(4′-hydroxy-3′-methoxyphenyl)prop-2-en-1-yl]-chrysin and -galangin. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.05.057] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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10
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Multifunctional tacrine–flavonoid hybrids with cholinergic, β-amyloid-reducing, and metal chelating properties for the treatment of Alzheimer's disease. Eur J Med Chem 2013; 69:632-46. [DOI: 10.1016/j.ejmech.2013.09.024] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2013] [Revised: 09/05/2013] [Accepted: 09/08/2013] [Indexed: 12/17/2022]
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11
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Selepe MA, Van Heerden FR. Application of the Suzuki-Miyaura reaction in the synthesis of flavonoids. Molecules 2013; 18:4739-65. [PMID: 23609624 PMCID: PMC6269869 DOI: 10.3390/molecules18044739] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2013] [Revised: 04/10/2013] [Accepted: 04/19/2013] [Indexed: 11/16/2022] Open
Abstract
The application of the Suzuki-Miyaura reaction in the synthesis of flavonoids, an important class of natural products, is reviewed. This reaction has not only been employed to provide access to flavonoid nuclei, but has also been applied to the synthesis of dimeric flavonoids and in the synthesis of libraries of flavonoid derivatives for biological activity studies. The classes of flavonoids that are discussed are the chalcones, flavones, isoflavones, neoflavones, biflavones and derivatives of flavonoids obtained by C-C bond formation via the Suzuki-Miyaura reaction.
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Affiliation(s)
| | - Fanie R. Van Heerden
- School of Chemistry and Physics, University of KwaZulu-Natal, Private Bag X01, Scottsville 3209, South Africa; E-Mail:
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12
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Zheng SY, Li XP, Tan HS, Yu CH, Zhang JH, Shen ZW. Studies on the Total Synthesis of Hirtellanine A: Regioselective Synthesis of Benzopyran. European J Org Chem 2013. [DOI: 10.1002/ejoc.201201339] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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14
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15
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Zheng S, Fu R, Shen Z. Synthesis of Hirtellanine B, an Isoflavonoid with Potent Antiproliferative Effects in Cancer Cells. CHINESE J CHEM 2012. [DOI: 10.1002/cjoc.201200146] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Shuyan Zheng
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Runzhong Fu
- Departmen of Applied Chemistry, East China University of Sciences and Technology, Shanghai 20000, China
| | - Zhengwu Shen
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
- Basilea Pharmaceutica China Ltd., Haimen, Jiangsu 226100, China
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16
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Palladium-catalyzed oxidative arylation of chromones via a double C–H activation: an expedient approach to flavones. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.03.100] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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17
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Bartlett CJ, Day DP, Chan Y, Allin SM, McKenzie MJ, Slawin AMZ, Page PCB. Enantioselective total synthesis of (+)-scuteflorin A using organocatalytic asymmetric epoxidation. J Org Chem 2011; 77:772-4. [PMID: 22136178 DOI: 10.1021/jo2021407] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We report the first enantioselective total synthesis of (+)-scuteflorin A in 14% overall yield, employing a chiral iminium salt to effect an organocatalytic asymmetric epoxidation of xanthyletin in >99% ee as the key step.
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Affiliation(s)
- Christopher J Bartlett
- School of Chemistry, University of East Anglia , Norwich Research Park, Norwich, Norfolk NR4 7TJ, UK
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18
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Selepe MA, Drewes SE, van Heerden FR. Total synthesis of the pyranocoumaronochromone lupinalbin H. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.09.042] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Selepe MA, Drewes SE, van Heerden FR. Total synthesis of the pyranoisoflavone kraussianone 1 and related isoflavones. JOURNAL OF NATURAL PRODUCTS 2010; 73:1680-1685. [PMID: 20718472 DOI: 10.1021/np100407n] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The first total synthesis of the pyranoisoflavone kraussianone 1 (1) is described. The key steps involved the Suzuki-Miyaura reaction for the construction of the isoflavone core and the regioselective formation of the dimethylpyran scaffolds to the phloroglucinol (ring A) and resorcinol (ring B) moieties of kraussianone 1 (1). This route also provided access to the related isoflavones eriosemaone D (2) and genistein (3) via simple structural modifications.
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Affiliation(s)
- Mamoalosi A Selepe
- School of Chemistry, University of KwaZulu-Natal, Private Bag X01, Scottsville 3209, Pietermaritzburg, South Africa
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