1
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Wang C, Lin J, Huang H, Ye C, Bao H. Regio- and Diastereoselective Radical Dimerization Reactions for the Construction of Benzo[ f]isoindole Dimers. Org Lett 2024; 26:2580-2584. [PMID: 38526484 DOI: 10.1021/acs.orglett.4c00587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/26/2024]
Abstract
This study presents a novel approach for synthesizing benzo[f]isoindole dimers, which involves cascade cyclization and oxidative radical dimerization. Our method allows for the formation of up to five carbon-carbon bonds in a single reaction, exhibiting remarkable diastereoselectivity and regioselectivity. The mechanism and regioselectivity were investigated through a combination of experiments and calculations.
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Affiliation(s)
- Chuanchuan Wang
- College of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, P. R. of China
- State Key Laboratory of Structural Chemistry, Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, P. R. of China
- Fujian College, University of Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, P. R. of China
| | - Jingyi Lin
- College of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, P. R. of China
- State Key Laboratory of Structural Chemistry, Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, P. R. of China
- Fujian College, University of Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, P. R. of China
| | - Haiyang Huang
- State Key Laboratory of Structural Chemistry, Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, P. R. of China
| | - Changqing Ye
- State Key Laboratory of Structural Chemistry, Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, P. R. of China
| | - Hongli Bao
- State Key Laboratory of Structural Chemistry, Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, P. R. of China
- Fujian College, University of Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, P. R. of China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. of China
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2
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Ma X, Tan M, Li L, Zhong Z, Li P, Liang J, Song Q. Ni-catalysed assembly of axially chiral alkenes from alkynyl tetracoordinate borons via 1,3-metallate shift. Nat Chem 2024; 16:42-53. [PMID: 38182763 DOI: 10.1038/s41557-023-01396-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 11/13/2023] [Indexed: 01/07/2024]
Abstract
Asymmetric synthesis based on a metallate shift of tetracoordinate borons is an intriguing and challenging topic. Despite the construction of central chirality from tetracoordinate boron species via a 1,2-metallate shift, catalytic asymmetric synthesis of axially chiral compounds from such boron 'ate' complexes is an ongoing challenge. Axially chiral alkenes have received great attention due to their unique characteristics and intriguing molecular scaffolds. Here we report an enantioselective nickel-catalysed strategy for the construction of axially chiral alkenes via a 1,3-metallate shift of alkynyl tetracoordinate boron species. The chemoselectivity, regioselectivity and atroposelectivity can be regulated and well-controlled from readily accessible starting materials with a cheap transition-metal catalyst. Downstream transformations indicate the powerful conversion ability of such compounds in this protocol, and late-stage elaborations of bioactive compounds can also be achieved. Mechanistic experiments reveal that regioselective syn-addition of an aryl-Ni complex with a carbon-carbon triple bond and subsequent 1,3-phenyl migration are the two key steps for the synthesis of axially chiral alkenes.
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Affiliation(s)
- Xingxing Ma
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry, Fuzhou University, Fuzhou, Fujian, China
| | - Mengwei Tan
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry, Fuzhou University, Fuzhou, Fujian, China
| | - Luo Li
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry, Fuzhou University, Fuzhou, Fujian, China
| | - Zihao Zhong
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry, Fuzhou University, Fuzhou, Fujian, China
| | - Puhui Li
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry, Fuzhou University, Fuzhou, Fujian, China
| | - Jinchao Liang
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry, Fuzhou University, Fuzhou, Fujian, China
| | - Qiuling Song
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry, Fuzhou University, Fuzhou, Fujian, China.
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3
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Li L, Wang Y, Chen N, Li X, Li H, Jin L, Ou Y, Kong XJ, Cao S, Xu Q, Wu X, Han J, Deng X. Exploring Diversity through Dimerization in Natural Products by a Rational Tandem Mass-Based Molecular Network Strategy. Org Lett 2023; 25:4016-4021. [PMID: 37249258 DOI: 10.1021/acs.orglett.3c01038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The step- and atom-efficient dimerization strategy is frequently used in nature to build structural complexity and diversity. We propose the rationale and structural features of the versatile monomers that are responsible for "diversity through dimerization". Using 5-FAM-maleimide combined with a UHPLC-MS/MS-FBMN workflow, we successfully identified a diverse set of dimeric natural products from fungus Panus rudis F01315, in which all four complex 4'5-ring scaffolds are derived from one monomeric epoxyquinol and endowed with functional diversity.
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Affiliation(s)
- Li Li
- State Key Laboratory of Cellular Stress Biology, State-province Joint Engineering Laboratory of Targeted Drugs from Natural Products, School of Life Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Yuezhou Wang
- State Key Laboratory of Cellular Stress Biology, State-province Joint Engineering Laboratory of Targeted Drugs from Natural Products, School of Life Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Naixin Chen
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Xiaoyang Li
- State Key Laboratory of Cellular Stress Biology, State-province Joint Engineering Laboratory of Targeted Drugs from Natural Products, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Hanpeng Li
- State Key Laboratory of Cellular Stress Biology, State-province Joint Engineering Laboratory of Targeted Drugs from Natural Products, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Ling Jin
- State Key Laboratory of Cellular Stress Biology, State-province Joint Engineering Laboratory of Targeted Drugs from Natural Products, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Yixin Ou
- State Key Laboratory of Cellular Stress Biology, State-province Joint Engineering Laboratory of Targeted Drugs from Natural Products, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Xiang-Jian Kong
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, China
| | - Shugeng Cao
- Department of Pharmaceutical Sciences, Daniel K. Inouye College of Pharmacy, University of Hawai'i at Hilo, 200 W. Kawili St., Hilo, Hawaii 96720, USA
| | - Qingyan Xu
- State Key Laboratory of Cellular Stress Biology, State-province Joint Engineering Laboratory of Targeted Drugs from Natural Products, School of Life Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Xiaobing Wu
- State Key Laboratory of Cellular Stress Biology, State-province Joint Engineering Laboratory of Targeted Drugs from Natural Products, School of Life Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Jianyong Han
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Xianming Deng
- State Key Laboratory of Cellular Stress Biology, State-province Joint Engineering Laboratory of Targeted Drugs from Natural Products, School of Life Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
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4
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Vieira de Castro T, Huang DM, Sumby CJ, Lawrence AL, George JH. A bioinspired, one-step total synthesis of peshawaraquinone. Chem Sci 2023; 14:950-954. [PMID: 36755725 PMCID: PMC9890946 DOI: 10.1039/d2sc05377b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 12/20/2022] [Indexed: 12/24/2022] Open
Abstract
A concise synthesis of a stereochemically complex meroterpenoid, peshawaraquinone, via the unsymmetrical dimerization of its achiral precursor, dehydro-α-lapachone, is reported. Enabled by reversible oxa-6π-electrocyclizations of 2H-pyran intermediates, the base-catalyzed dimerization sets up an intramolecular (3 + 2) cycloaddition, with the formation of six stereocenters during the cascade. Combining the generation and in situ dimerization of dehydro-α-lapachone allows a one-step total synthesis of peshawaraquinone from lawsone and prenal.
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Affiliation(s)
- Tomás Vieira de Castro
- Department of Chemistry, University of Adelaide Adelaide SA 5000 Australia .,EaStCHEM School of Chemistry, University of Edinburgh Joseph Black Building, David Brewster Road Edinburgh EH9 3FJ UK
| | - David M. Huang
- Department of Chemistry, University of AdelaideAdelaideSA 5000Australia
| | | | - Andrew L. Lawrence
- EaStCHEM School of Chemistry, University of EdinburghJoseph Black Building, David Brewster RoadEdinburghEH9 3FJUK
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5
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Khong QT, Li D, Wilson BAP, Ranguelova K, Dalilian M, Smith EA, Wamiru A, Goncharova EI, Grkovic T, Voeller D, Lipkowitz S, Schnermann MJ, O'Keefe BR, Du L. Photochemical Dimerization of Plakinidine B Leads to Potent Inhibition of the E3 Ubiquitin-Protein Ligase CBL-B. Org Lett 2022; 24:9468-9472. [PMID: 36516994 PMCID: PMC10681237 DOI: 10.1021/acs.orglett.2c03922] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A new dimeric alkaloid plakoramine A [(±)-1] was identified from a marine sponge Plakortis sp. Chiral-phase HPLC separation of (±)-1 led to the purified enantiomers (+)-1 and (-)-1 which both potently inhibited CBL-B E3 ubiquitin ligase activities. The absolute configurations of the enantiomers were determined by quantum chemical calculations. Scrutinization of the purification conditions revealed a previously undescribed, nonenzymatic route to form (±)-1 via photochemical conversion of its naturally occurring monomeric counterpart, plakinidine B (2).
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Affiliation(s)
- Quan T Khong
- Molecular Targets Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland 21702-1201, United States
| | - Donghao Li
- Chemical Biology Laboratory, Center for Cancer Research, National Cancer Institute, Frederick, Maryland 20850, United States
| | - Brice A P Wilson
- Molecular Targets Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland 21702-1201, United States
| | | | - Masoumeh Dalilian
- Molecular Targets Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland 21702-1201, United States
- Basic Science Program, Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, Frederick, Maryland 21702-1201, United States
| | - Emily A Smith
- Molecular Targets Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland 21702-1201, United States
- Basic Science Program, Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, Frederick, Maryland 21702-1201, United States
| | - Antony Wamiru
- Molecular Targets Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland 21702-1201, United States
- Basic Science Program, Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, Frederick, Maryland 21702-1201, United States
| | - Ekaterina I Goncharova
- Molecular Targets Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland 21702-1201, United States
- Advanced Biomedical Computational Science, Frederick National Laboratory for Cancer Research, Frederick, Maryland 21702-1201, United States
| | - Tanja Grkovic
- Molecular Targets Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland 21702-1201, United States
- Natural Products Branch, Developmental Therapeutics Program, Division of Cancer Treatment and Diagnosis, National Cancer Institute, Frederick, Maryland 21701-1201, United States
| | - Donna Voeller
- Women's Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892-1578, United States
| | - Stanley Lipkowitz
- Women's Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892-1578, United States
| | - Martin J Schnermann
- Chemical Biology Laboratory, Center for Cancer Research, National Cancer Institute, Frederick, Maryland 20850, United States
| | - Barry R O'Keefe
- Molecular Targets Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland 21702-1201, United States
- Natural Products Branch, Developmental Therapeutics Program, Division of Cancer Treatment and Diagnosis, National Cancer Institute, Frederick, Maryland 21701-1201, United States
| | - Lin Du
- Molecular Targets Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland 21702-1201, United States
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6
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Lyu J, Claraz A, Retailleau P, Masson G. Divergent cyclodimerizations of styrylnaphthols under aerobic visible-light irradiation and Brønsted acid catalysis. Org Biomol Chem 2022; 20:9593-9599. [PMID: 36412533 DOI: 10.1039/d2ob01509a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Dimeric cyclization reactions show great potential to rapidly form highly substituted complex cyclic molecules from simple starting materials. However, such an appealing process is often hampered by the lack of selectivity. Herein we report two divergent cyclodimerization reactions of 1-styrylnaphthalen-2-ol derivatives under simple and very mild reaction conditions. A stereoselective visible light-induced oxidative (1 + 1 + 4 + 4) homodimerization gave rise to highly substituted 1,5-dioxocanes in moderate yields. This transformation harnessed singlet oxygen as a safe and mild oxidant under photocatalyst-free reaction conditions. Additionally, we demonstrated that the same substrates undergo a (4 + 2) heterodimerization under Brønsted-acid catalysis to produce chromane derivatives featuring 3 contiguous tertiary stereocenters in good to high yields with excellent diastereoselectivities.
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Affiliation(s)
- Jiyuan Lyu
- Institut de Chimie des Substances Naturelles, CNRS, Univ. Paris-Saclay, 1 Avenue de la Terrasse, 91198 Gif-sur-Yvette Cedex, France.
| | - Aurélie Claraz
- Institut de Chimie des Substances Naturelles, CNRS, Univ. Paris-Saclay, 1 Avenue de la Terrasse, 91198 Gif-sur-Yvette Cedex, France.
| | - Pascal Retailleau
- Institut de Chimie des Substances Naturelles, CNRS, Univ. Paris-Saclay, 1 Avenue de la Terrasse, 91198 Gif-sur-Yvette Cedex, France.
| | - Géraldine Masson
- Institut de Chimie des Substances Naturelles, CNRS, Univ. Paris-Saclay, 1 Avenue de la Terrasse, 91198 Gif-sur-Yvette Cedex, France. .,HitCat, Seqens-CNRS Joint Laboratory, Seqens'Lab, Porcheville, France
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7
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Cao PR, Li M, Zhang JS, Zheng YL, Chen J, Zhao YQ, Qi XD, Zhu PH, Gu YC, Kong LY, Yang MH. Epicoccanes A-D, Four Oxidative Dimers of Pyrogallol Analogues from Epicoccum nigrum. Org Lett 2022; 24:6789-6793. [PMID: 36094854 DOI: 10.1021/acs.orglett.2c02666] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Epicoccanes A-D (1-4) are four novel metabolites of an endophytic fungus Epicoccum nigrum. Their distinct unprecedented structures are hypothesized as oxidative dimers of pyrogallol analogues. Compounds 1 and 2 possess a novel spirobicyclo[3.2.1]octane-6,1'-cyclopentane or -cyclohexane core skeleton. Compound 3 is of a unique cage-like pentacyclic system, which unusually contained three continuous spiro-carbons. Compound 4 is a highly rearranged dimer with five contiguous chiral centers. The absolute structures of 1 and 2 were deduced by electronic circular dichroism (ECD) calculations, and those of 3 and 4 were determined by X-ray crystallography. Compounds 1 and 4 showed potential antiliver fibrosis activity.
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Affiliation(s)
- Peng-Ran Cao
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, People's Republic of China
| | - Min Li
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, People's Republic of China
| | - Jing-Shu Zhang
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, People's Republic of China
| | - Yi-Lei Zheng
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, People's Republic of China
| | - Jie Chen
- The Third People's Hospital of Kunming, 357 Wujing Road, Guandu District, Kunming 650000, People's Republic of China
| | - Yong-Qin Zhao
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, People's Republic of China
| | - Xiao-Dong Qi
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, People's Republic of China
| | - Pan-Hu Zhu
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, People's Republic of China
| | - Yu-Cheng Gu
- Syngenta, Jealott's Hill International Research Centre, Bracknell, Berkshire RG42 6EY, United Kingdom
| | - Ling-Yi Kong
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, People's Republic of China
| | - Ming-Hua Yang
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, People's Republic of China
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8
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Chang Y, Sun C, Wang C, Huo X, Zhao W, Ma X. Biogenetic and biomimetic synthesis of natural bisditerpenoids: hypothesis and practices. Nat Prod Rep 2022; 39:2030-2056. [PMID: 35983892 DOI: 10.1039/d2np00039c] [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
Covering: up to March 2022Bisditerpenoids, or diterpenoid dimers, are a group of natural products with high structural variance, deriving from homo- or hetero-dimeric coupling of two diterpenoid units. They usually possess complex architectures resulting from the diversity of monomeric diterpenoids as building blocks and the dimerization processes. These compounds have attracted the attention of synthetic and biological scientists owing to the rarity of their natural origin and their significant biological activities. Herein, we provide a review highlighting some of the interesting bisditerpenoids reported since 1961 and showcase the chemical diversity in both their structures and biosynthesis, as well as their biological functions. This review focuses on the biosynthetic dimerization pathways of interesting molecules and their biomimetic synthesis, which may act as useful inspiration for the discovery and synthesis of more bisditerpenoids and further pharmacological investigations.
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Affiliation(s)
- Yibo Chang
- College of Integrative Medicine, College of Pharmacy, Dalian Medical University, Dalian 116044, China. .,Second Affiliated Hospital, Dalian Medical University, Dalian 116023, China.
| | - Chengpeng Sun
- College of Integrative Medicine, College of Pharmacy, Dalian Medical University, Dalian 116044, China.
| | - Chao Wang
- College of Integrative Medicine, College of Pharmacy, Dalian Medical University, Dalian 116044, China.
| | - Xiaokui Huo
- Second Affiliated Hospital, Dalian Medical University, Dalian 116023, China.
| | - Wenyu Zhao
- College of Integrative Medicine, College of Pharmacy, Dalian Medical University, Dalian 116044, China.
| | - Xiaochi Ma
- College of Integrative Medicine, College of Pharmacy, Dalian Medical University, Dalian 116044, China. .,Second Affiliated Hospital, Dalian Medical University, Dalian 116023, China.
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9
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Zhao Q, Zhuang Z, Liu T, Yang Q, He QL, Liu W, Lin GQ. Unsymmetrically Regioselective Homodimerization Depends on the Subcellular Colocalization of Laccase/Fasciclin Protein in the Biosynthesis of Phlegmacins. ACS Chem Biol 2022; 17:791-796. [PMID: 35274920 DOI: 10.1021/acschembio.2c00032] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Phlegmacins are homodimeric dihydroanthracenone natural products featuring two torosachrysone monomers unsymmetrically conjugated by 7,10'-coupling. Herein, we report the identification and characterization of the biosynthetic gene cluster of phlegmacins in ascomycete Talaromyces sp. F08Z-0631. On the basis of the heterologous reconstitution of the phlegmacin pathway in Aspergillus oryzae, we demonstrated an unprecedented laccase-involved unsymmetrically regioselective oxidative coupling reaction. The association of laccase PhlC and the fasciclin partner protein PhlB was verified to be indispensable for the coupling activity. Intriguingly, both proteins can be transferred and located independently at the mitochondrial membrane. Notably, only their subcellular colocalization led to the occurrence of oxidative dimerization. These observations add new insights into the poorly understood catalytic mechanisms of various laccases involved in the biosynthesis of secondary metabolites, particularly those functioning with variable partners.
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Affiliation(s)
- Qunfei Zhao
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201203, China
| | - Zheng Zhuang
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201203, China
| | - Tian Liu
- School of Bioengineering, Dalian University of Technology, No. 2 Linggong Road, Dalian 116024, China
| | - Qing Yang
- Guangdong Laboratory for Lingnan Modern Agriculture (Shenzhen Branch), Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, No. 7 Pengfei Road, Shenzhen 518120, China
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, No. 2 West Yuanmingyuan Road, Beijing 100193, China
| | - Qing-Li He
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201203, China
| | - Wen Liu
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Guo-Qiang Lin
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201203, China
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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10
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Niggemeyer G, Knyazeva A, Gasper R, Corkery D, Bodenbinder P, Holstein JJ, Sievers S, Wu Y, Waldmann H. Synthesis of 20‐Membered Macrocyclic Pseudo‐Natural Products Yields Inducers of LC3 Lipidation. Angew Chem Int Ed Engl 2022; 61:e202114328. [PMID: 34978373 PMCID: PMC9303634 DOI: 10.1002/anie.202114328] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Indexed: 01/02/2023]
Abstract
Design and synthesis of pseudo‐natural products (PNPs) through recombination of natural product (NP) fragments in unprecedented arrangements enables the discovery of novel biologically relevant chemical matter. With a view to wider coverage of NP‐inspired chemical and biological space, we describe the combination of this principle with macrocycle formation. PNP‐macrocycles were synthesized efficiently in a stereoselective one‐pot procedure including the 1,3‐dipolar cycloadditions of different dipolarophiles with dimeric cinchona alkaloid‐derived azomethine ylides formed in situ. The 20‐membered bis‐cycloadducts embody 18 stereocenters and an additional fragment‐sized NP‐structure. After further functionalization, a collection of 163 macrocyclic PNPs was obtained. Biological investigation revealed potent inducers of the lipidation of the microtubule associated protein 1 light chain 3 (LC3) protein, which plays a prominent role in various autophagy‐related processes.
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Affiliation(s)
- Georg Niggemeyer
- Max Planck Institute of Molecular Physiology Department of Chemical Biology Otto-Hahn-Strasse 11 44227 Dortmund Germany
- Technical University Dortmund Faculty of Chemistry, Chemical Biology Otto-Hahn-Strasse 6 44221 Dortmund Germany
| | - Anastasia Knyazeva
- Umeå University Department of Chemistry 90187 Umeå Sweden
- Umeå University Umeå Center for Microbial Research 90187 Umeå Sweden
| | - Raphael Gasper
- Max Planck Institute of Molecular Physiology Crystallography and Biophysics Unit Otto-Hahn-Strasse 11 44227 Dortmund Germany
| | - Dale Corkery
- Umeå University Department of Chemistry 90187 Umeå Sweden
- Umeå University Umeå Center for Microbial Research 90187 Umeå Sweden
| | - Pia Bodenbinder
- Max Planck Institute of Molecular Physiology Department of Chemical Biology Otto-Hahn-Strasse 11 44227 Dortmund Germany
- Technical University Dortmund Faculty of Chemistry, Chemical Biology Otto-Hahn-Strasse 6 44221 Dortmund Germany
| | - Julian J. Holstein
- Technical University Dortmund Faculty of Chemistry, Chemical Biology Otto-Hahn-Strasse 6 44221 Dortmund Germany
- Technical University Dortmund Faculty of Chemistry, Inorganic Chemistry Otto-Hahn-Strasse 6 44221 Dortmund Germany
| | - Sonja Sievers
- Compound Management and Screening Center (COMAS) Otto-Hahn-Strasse 11 44221 Dortmund Germany
| | - Yao‐Wen Wu
- Umeå University Department of Chemistry 90187 Umeå Sweden
- Umeå University Umeå Center for Microbial Research 90187 Umeå Sweden
| | - Herbert Waldmann
- Max Planck Institute of Molecular Physiology Department of Chemical Biology Otto-Hahn-Strasse 11 44227 Dortmund Germany
- Technical University Dortmund Faculty of Chemistry, Chemical Biology Otto-Hahn-Strasse 6 44221 Dortmund Germany
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11
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Zeng HT, Yu YH, Zeng X, Li MM, Li X, Xu SS, Tu ZC, Yuan T. Anti-inflammatory Dimeric Benzophenones from an Endophytic Pleosporales Species. JOURNAL OF NATURAL PRODUCTS 2022; 85:162-168. [PMID: 35007071 DOI: 10.1021/acs.jnatprod.1c00900] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Eight new polyketides, including three dimeric benzophenones, named dipleosporones A-C (1-3), three benzophenones (4-6), one xanthone (7), and one phenylbenzoate (8), along with seven known polyketides (9-15) were isolated from the fungus Pleosporales sp. YY-4. The structures of the new compounds were established on the basis of spectroscopic methods, including high-resolution electrospray ionization mass spectrometry and one- and two-dimensional nuclear magnetic resonance. This is the first report of a benzophenone dimer connection via a C bridge from natural sources. An anti-inflammatory assay indicated that the dimeric benzophenones (1-3) inhibited lipopolysaccharide-induced NO production in RAW 264.7 cells, with half-maximal inhibitory concentration (IC50) values ranging from 8.8 to 18.1 μM, being more potent than the positive control, dexamethasone (IC50 = 22.2 μM).
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Affiliation(s)
- Hui-Ting Zeng
- The Laboratory of Effective Substances of Jiangxi Genuine Medicinal Materials, College of Life Sciences, Jiangxi Normal University, Nanchang, Jiangxi330022, People's Republic of China
| | - Yi-Hu Yu
- The Laboratory of Effective Substances of Jiangxi Genuine Medicinal Materials, College of Life Sciences, Jiangxi Normal University, Nanchang, Jiangxi330022, People's Republic of China
| | - Xi Zeng
- The Laboratory of Effective Substances of Jiangxi Genuine Medicinal Materials, College of Life Sciences, Jiangxi Normal University, Nanchang, Jiangxi330022, People's Republic of China
| | - Miao-Miao Li
- The Laboratory of Effective Substances of Jiangxi Genuine Medicinal Materials, College of Life Sciences, Jiangxi Normal University, Nanchang, Jiangxi330022, People's Republic of China
| | - Xia Li
- The Laboratory of Effective Substances of Jiangxi Genuine Medicinal Materials, College of Life Sciences, Jiangxi Normal University, Nanchang, Jiangxi330022, People's Republic of China
| | - Shan-Shan Xu
- The Laboratory of Effective Substances of Jiangxi Genuine Medicinal Materials, College of Life Sciences, Jiangxi Normal University, Nanchang, Jiangxi330022, People's Republic of China
| | - Zong-Cai Tu
- College of Life Sciences, Jiangxi Normal University, Nanchang, Jiangxi330022, People's Republic of China
| | - Tao Yuan
- The Laboratory of Effective Substances of Jiangxi Genuine Medicinal Materials, College of Life Sciences, Jiangxi Normal University, Nanchang, Jiangxi330022, People's Republic of China
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12
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Niggemeyer G, Knyazeva A, Gasper R, Corkery D, Bodenbinder P, Holstein JJ, Sievers S, Wu Y, Waldmann H. Synthesis of 20‐Membered Macrocyclic Pseudo‐Natural Products Yields Inducers of LC3 Lipidation. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202114328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Georg Niggemeyer
- Max Planck Institute of Molecular Physiology Department of Chemical Biology Otto-Hahn-Strasse 11 44227 Dortmund Germany
- Technical University Dortmund Faculty of Chemistry, Chemical Biology Otto-Hahn-Strasse 6 44221 Dortmund Germany
| | - Anastasia Knyazeva
- Umeå University Department of Chemistry 90187 Umeå Sweden
- Umeå University Umeå Center for Microbial Research 90187 Umeå Sweden
| | - Raphael Gasper
- Max Planck Institute of Molecular Physiology Crystallography and Biophysics Unit Otto-Hahn-Strasse 11 44227 Dortmund Germany
| | - Dale Corkery
- Umeå University Department of Chemistry 90187 Umeå Sweden
- Umeå University Umeå Center for Microbial Research 90187 Umeå Sweden
| | - Pia Bodenbinder
- Max Planck Institute of Molecular Physiology Department of Chemical Biology Otto-Hahn-Strasse 11 44227 Dortmund Germany
- Technical University Dortmund Faculty of Chemistry, Chemical Biology Otto-Hahn-Strasse 6 44221 Dortmund Germany
| | - Julian J. Holstein
- Technical University Dortmund Faculty of Chemistry, Chemical Biology Otto-Hahn-Strasse 6 44221 Dortmund Germany
- Technical University Dortmund Faculty of Chemistry, Inorganic Chemistry Otto-Hahn-Strasse 6 44221 Dortmund Germany
| | - Sonja Sievers
- Compound Management and Screening Center (COMAS) Otto-Hahn-Strasse 11 44221 Dortmund Germany
| | - Yao‐Wen Wu
- Umeå University Department of Chemistry 90187 Umeå Sweden
- Umeå University Umeå Center for Microbial Research 90187 Umeå Sweden
| | - Herbert Waldmann
- Max Planck Institute of Molecular Physiology Department of Chemical Biology Otto-Hahn-Strasse 11 44227 Dortmund Germany
- Technical University Dortmund Faculty of Chemistry, Chemical Biology Otto-Hahn-Strasse 6 44221 Dortmund Germany
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13
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Cuan Y, Li W, Dou Y, Yang G. Facile and scalable synthesis of baphicacanthin A by a two-pot procedure. Nat Prod Res 2021; 37:1439-1443. [PMID: 34852687 DOI: 10.1080/14786419.2021.2011275] [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: 10/19/2022]
Abstract
Facile two-pot total synthesis of baphicacanthin A, a natural phenoxazinone alkaloid isolated from the roots of Baphicacanthus cusia which has been utilized as a traditional chinese medicine to effectively treat disease caused by coronavirus, has been developed from simple and commercially available starting materials. Catalytic aerobic oxidative cross-cyclocondensation of equimolar 2-aminophenol and 3-methoxy-2-hydroxylphenol in water was used to construct the key molecular skeleton 2-hydroxy-3H-phenoxazin-3-one. Gram scale synthesis was realized in 80% overall yield with practical convenience.
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Affiliation(s)
- Yalong Cuan
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou, China
| | - Wenhao Li
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou, China
| | - Yingchao Dou
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou, China
| | - Guanyu Yang
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou, China
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14
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Lim H, Seong S, Kim Y, Seo S, Han S. Biopatterned Reorganization of Alkaloids Enabled by Ring-Opening Functionalization of Tertiary Amines. J Am Chem Soc 2021; 143:19966-19974. [PMID: 34784466 DOI: 10.1021/jacs.1c10205] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Biosynthetic processes often involve reorganization of one family of natural products to another. Chemical emulation of nature's rearrangement-based structural diversification strategy would enable the conversion of readily available natural products to other value-added secondary metabolites. However, the development of a chemical method that can be universally applied to structurally diverse natural products is nontrivial. Key to the successful reorganization of complex molecules is a versatile and mild bond-cleaving method that correctly places desired functionality, facilitating the target synthesis. Here, we report a ring-opening functionalization of a tertiary amine that can introduce desired functionalities in the context of alkaloids reorganization. The semistability of the difluoromethylated ammonium salt, accessed by the reaction of tertiary amine and in situ generated difluorocarbene, enabled the attack at the α-position by various external nucleophiles. The utility and generality of the method is highlighted by its applications in the transformation of securinega, iboga, and sarpagine alkaloids to neosecurinega, chippiine/dippinine, and vobasine-type bisindole alkaloids, respectively. During the course of these biosynthetically inspired reorganizations, we could explore chemical reactivities of biogenetically relevant precursors.
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Affiliation(s)
- Hyeonggeun Lim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
| | - Sikwang Seong
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
| | - Youyoung Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea.,Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Korea
| | - Sangwon Seo
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea.,Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Korea
| | - Sunkyu Han
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea.,Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Korea
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15
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De Natale A, Pollio A, De Marco A, Luongo G, Di Fabio G, Zarrelli A. Phenanthrene Dimers: Promising Source of Biologically Active Molecules. Curr Top Med Chem 2021; 22:939-956. [PMID: 34392822 DOI: 10.2174/1568026621666210813113918] [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: 05/17/2021] [Revised: 07/08/2021] [Accepted: 07/15/2021] [Indexed: 11/22/2022]
Abstract
To date, just over a hundred phenanthrenoid dimers have been isolated. Of these, forty-two are completely phenanthrenic in nature. They are isolated from fourteen genera of different plants belonging to only five families, of which Orchidaceae is the most abundant source. Other nine completely acetylated and five methylated dimers were also defined, which were effective in establishing the position of the free hydroxyls of the corresponding natural products, from which they were obtained by semi-synthesis. Structurally, they could be useful chemotaxonomic markers considering that some substituents are typical of a single-family, such as the vinyl group for Juncaceae. From a biogenetic point of view, it is thought that these compounds derive from the radical coupling of the corresponding phenanthrenes or by dehydrogenation of the dihydrophenanthrenoid analogs. Phenanthrenes or dihydroderivatives possess different biological activities, e.g., antiproliferative, antimicrobial, anti-inflammatory, antioxidant, spasmolytic, anxiolytic, and antialgal effects. The aim of this review is to summarize the occurrence of phenanthrene dimers in the different natural sources and give a comprehensive overview their structural characteristics and biological activities.
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Affiliation(s)
- Antonino De Natale
- Department of Biology, University of Napoli, Federico II, Via Cinthia, Napoli I-80126. Italy
| | - Antonino Pollio
- Department of Biology, University of Napoli, Federico II, Via Cinthia, Napoli I-80126. Italy
| | - Anna De Marco
- Department of Pharmacy, University of Napoli, Federico II, Via Montesano, Napoli I-80131. Italy
| | - Giovanni Luongo
- Department of Chemical Sciences, University of Napoli, Federico II, Via Cintia 4, I-80126. Italy
| | - Giovanni Di Fabio
- Department of Chemical Sciences, University of Napoli, Federico II, Via Cintia 4, I-80126. Italy
| | - Armando Zarrelli
- Department of Chemical Sciences, University of Napoli, Federico II, Via Cintia 4, I-80126. Italy
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16
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Miao Y, Chen Y, Chen H, Wang X, Zhao Y. Using steric hindrance to manipulate and stabilize metal halide perovskites for optoelectronics. Chem Sci 2021; 12:7231-7247. [PMID: 34163817 PMCID: PMC8171330 DOI: 10.1039/d1sc01171e] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Accepted: 04/28/2021] [Indexed: 01/04/2023] Open
Abstract
The chemical instability of metal halide perovskite materials can be ascribed to their unique properties of softness, in which the chemical bonding between metal halide octahedral frameworks and cations is the weak ionic and hydrogen bonding as in most perovskite structures. Therefore, various strategies have been developed to stabilize the cations and metal halide frameworks, which include incorporating additives, developing two-dimensional perovskites and perovskite nanocrystals, etc. Recently, the important role of utilizing steric hindrance for stabilizing and passivating perovskites has been demonstrated. In this perspective, we summarize the applications of steric hindrance in manipulating and stabilizing perovskites. We will also discuss how steric hindrance influences the fundamental kinetics of perovskite crystallization and film formation processes. The similarities and differences of the steric hindrance between perovskite solar cells and perovskite light emission diodes are also discussed. In all, utilizing steric hindrance is a promising strategy to manipulate and stabilize metal halide perovskites for optoelectronics.
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Affiliation(s)
- Yanfeng Miao
- School of Environmental Science and Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University Shanghai 200240 China
| | - Yuetian Chen
- School of Environmental Science and Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University Shanghai 200240 China
| | - Haoran Chen
- School of Environmental Science and Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University Shanghai 200240 China
| | - Xingtao Wang
- School of Environmental Science and Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University Shanghai 200240 China
| | - Yixin Zhao
- School of Environmental Science and Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University Shanghai 200240 China
- Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092 China
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