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Yu W, Song J, Yu SY, Kim J. Cyclocarbonylation of Allenyl Glyoxylate Strategy to Build the Tricyclic Core of Cyclocalopin A. Org Lett 2022; 24:2242-2247. [PMID: 35297249 DOI: 10.1021/acs.orglett.2c00625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An approach for the construction of the tricyclic framework of naturally occurring cyclocalopin A is described. The establishment of the crucial intermediate α-methylene bis-γ,δ-lactone involves a [2 + 2 + 1]-cyclocarbonylation of newly introduced allenyl glyoxylate via direct methods using Mo(CO)6 or sequential reaction pathways. The sequential reaction route involved a stannylative cyclization by Pd(0) catalyst, bromination of an vinyl stannane moiety, and final cyclocarbonylation by palladium catalysis to provide the bis-γ,δ-lactone. The feasibility of forming the spiro-system by an exo-selective [4 + 2]-cycloaddition was accomplished.
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Affiliation(s)
- Weonju Yu
- Department of Chemistry, Chonnam National University, Gwangju 61186, Korea
| | - Jieun Song
- Department of Chemistry, Chonnam National University, Gwangju 61186, Korea
| | - Suh Young Yu
- Department of Chemistry, Chonnam National University, Gwangju 61186, Korea
| | - Jimin Kim
- Department of Chemistry, Chonnam National University, Gwangju 61186, Korea
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2
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Sakauchi K, Taira W, Otaki JM. Metabolomic Response of the Creeping Wood Sorrel Oxalis corniculata to Low-Dose Radiation Exposure from Fukushima's Contaminated Soil. Life (Basel) 2021; 11:990. [PMID: 34575139 PMCID: PMC8472241 DOI: 10.3390/life11090990] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 09/15/2021] [Accepted: 09/17/2021] [Indexed: 12/25/2022] Open
Abstract
The biological consequences of the Fukushima nuclear accident have been intensively studied using the pale grass blue butterfly Zizeeria maha and its host plant, the creeping wood sorrel Oxalis corniculata. Here, we performed metabolomic analyses of Oxalis leaves from Okinawa to examine the plant metabolites that were upregulated or downregulated in response to low-dose radiation exposure from Fukushima's contaminated soil. The cumulative dose of radiation to the plants was 5.7 mGy (34 μGy/h for 7 days). The GC-MS analysis revealed a systematic tendency of downregulation among the metabolites, some of which were annotated as caproic acid, nonanoic acid, azelaic acid, and oleic acid. Others were annotated as fructose, glucose, and citric acid, involved in the carbohydrate metabolic pathways. Notably, the peak annotated as lauric acid was upregulated. In contrast, the LC-MS analysis detected many upregulated metabolites, some of which were annotated as either antioxidants or stress-related chemicals involved in defense pathways. Among them, only three metabolite peaks had a single annotation, one of which was alfuzosin, an antagonist of the α1-adrenergic receptor. We conclude that this Oxalis plant responded metabolically to low-dose radiation exposure from Fukushima's contaminated soil, which may mediate the ecological "field effects" of the developmental deterioration of butterflies in Fukushima.
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Affiliation(s)
- Ko Sakauchi
- The BCPH Unit of Molecular Physiology, Department of Chemistry, Biology and Marine Science, Faculty of Science, University of the Ryukyus, Okinawa 903-0213, Japan; (K.S.); (W.T.)
| | - Wataru Taira
- The BCPH Unit of Molecular Physiology, Department of Chemistry, Biology and Marine Science, Faculty of Science, University of the Ryukyus, Okinawa 903-0213, Japan; (K.S.); (W.T.)
- Center for Research Advancement and Collaboration, University of the Ryukyus, Okinawa 903-0213, Japan
| | - Joji M. Otaki
- The BCPH Unit of Molecular Physiology, Department of Chemistry, Biology and Marine Science, Faculty of Science, University of the Ryukyus, Okinawa 903-0213, Japan; (K.S.); (W.T.)
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3
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Siewert B. Does the chemistry of fungal pigments demand the existence of photoactivated defense strategies in basidiomycetes? Photochem Photobiol Sci 2021; 20:475-488. [PMID: 33738747 DOI: 10.1007/s43630-021-00034-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 03/04/2021] [Indexed: 12/20/2022]
Abstract
The well-known photosensitizers hypericin, harmane, and emodin are typical pigments of certain mushroom species-is this a coincidence or an indication towards a photoactivated defense mechanism in the phylum Basidiomycota? This perspective article explores this hypothesis by cross-linking the chemistry of fungal pigments with structural requirements from known photosensitizers and insights from photoactivated strategies in the kingdom Plantae. Thereby, light is shed on a yet unexplored playground dealing with ecological questions, photopharmaceutical opportunities, and biotechnological potentials.
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Affiliation(s)
- Bianka Siewert
- Institute of Pharmacy/Pharmacognosy and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innsbruck, Austria.
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4
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Oba Y, Urai M, Wu J, Tomizawa M, Kawagishi H, Hashimoto K. Bitter compounds in two Tricholoma species, T. aestuans and T. virgatum. J Antibiot (Tokyo) 2020; 73:697-701. [PMID: 32576949 DOI: 10.1038/s41429-020-0338-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 05/10/2020] [Accepted: 06/01/2020] [Indexed: 11/09/2022]
Abstract
Lascivol was identified as the bitter compound in two Tricholoma species, T. aestuans and T. virgatum, and was previously isolated from the European mushroom T. lascivum. The structure of lascivol was previously solved by X-ray crystallographical analysis but its stereochemistry at C3 remained ambiguous. We thus re-examined the absolute configuration of C3 bearing a hydroxy group using the modified Mosher's method.
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Affiliation(s)
- Yumiko Oba
- Graduate School of Science and Technology, Shizuoka University, Shizuoka, Japan
| | - Makoto Urai
- Department of Chemistry for Life Sciences and Agriculture, Faculty of Life Sciences, Tokyo University of Agriculture, Tokyo, Japan
| | - Jing Wu
- Research Institute of Green Science and Technology, Shizuoka University, Shizuoka, Japan
| | - Motohiro Tomizawa
- Department of Chemistry for Life Sciences and Agriculture, Faculty of Life Sciences, Tokyo University of Agriculture, Tokyo, Japan
| | - Hirokazu Kawagishi
- Graduate School of Science and Technology, Shizuoka University, Shizuoka, Japan.,Research Institute of Green Science and Technology, Shizuoka University, Shizuoka, Japan
| | - Kimiko Hashimoto
- Department of Chemistry for Life Sciences and Agriculture, Faculty of Life Sciences, Tokyo University of Agriculture, Tokyo, Japan.
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5
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Nagaraju S, Liu S, Liu J, Yang S, Liu R, Chen Z, Paplal B, Fang X. Regioselectivity-Switchable Catalytic Annulations of Alkynyl α-Diketones and α-Cyanoketones. Org Lett 2019; 21:10075-10080. [DOI: 10.1021/acs.orglett.9b04040] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sakkani Nagaraju
- Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Shuhua Liu
- Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Jinggong Liu
- Orthopedics Department, Guangdong Provincial Hospital of Traditional Chinese Medicine, Guangzhou 510120, China
| | - Shuang Yang
- State Key Laboratory of Structural Chemistry, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Fuzhou 350100, China
| | - Rui Liu
- State Key Laboratory of Structural Chemistry, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Fuzhou 350100, China
| | - Zhizhou Chen
- State Key Laboratory of Structural Chemistry, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Fuzhou 350100, China
| | - Banoth Paplal
- Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Xinqiang Fang
- State Key Laboratory of Structural Chemistry, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Fuzhou 350100, China
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6
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Chai H, Liang ZQ, Xue R, Jiang S, Luo SH, Wang Y, Wu LL, Tang LP, Chen Y, Hong D, Zeng NK. New and noteworthy boletes from subtropical and tropical China. MycoKeys 2019:55-96. [PMID: 30846903 PMCID: PMC6401544 DOI: 10.3897/mycokeys.46.31470] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Accepted: 01/09/2019] [Indexed: 01/05/2023] Open
Abstract
The morphology, ecology, and phylogenetic relationships of specimens of the family Boletaceae from subtropical and tropical China were investigated. Four species, Butyriboletushuangnianlaii, Lanmaoamacrocarpa, Neoboletusmultipunctatus, and Sutoriussubrufus, are new to science. Chalciporusradiatus and Caloboletusxiangtoushanensis are redescribed. Caloboletusguanyui is proposed to replace Boletusquercinus Hongo, an illegitimate later homonym. The recently described Tylopiluscallainus is synonymized with the Japanese Boletusvirescens, and the new combination T.virescens (Har. Takah. & Taneyama) N.K. Zeng et al. is proposed. Moreover, Neoboletus is treated as an independent genus based on evidence from morphology and molecular phylogenetic data in the present study, and many previously described taxa of Sutorius are recombined into Neoboletus: N.ferrugineus (G. Wu et al.) N.K. Zeng et al., N.flavidus (G. Wu & Zhu L. Yang) N.K. Zeng et al., N.hainanensis (T.H. Li & M. Zang) N.K. Zeng et al., N.obscureumbrinus (Hongo) N.K. Zeng et al., N.rubriporus (G. Wu & Zhu L. Yang) N.K. Zeng et al., N.sanguineoides (G. Wu & Zhu L. Yang) N.K. Zeng et al. , N.sanguineus (G. Wu & Zhu L. Yang) N.K. Zeng et al., and N.tomentulosus (M. Zang et al.) N.K. Zeng et al.
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Affiliation(s)
- Hui Chai
- College of Pharmacy-Transgenic Laboratory, Hainan Medical University, Haikou 571199, China Hainan Medical University Haikou China
| | - Zhi-Qun Liang
- College of Materials and Chemistry Engineering, Hainan University, Haikou 570228, China Hainan University Haikou China
| | - Rou Xue
- College of Pharmacy-Transgenic Laboratory, Hainan Medical University, Haikou 571199, China Hainan Medical University Haikou China
| | - Shuai Jiang
- Hainan Yinggeling National Nature Reserve, Baisha, 572800, China Hainan Yinggeling National Nature Reserve Baisha China
| | - Shi-Hong Luo
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang 110866, China Shenyang Agricultural University Shenyang China
| | - Yong Wang
- College of Pharmacy-Transgenic Laboratory, Hainan Medical University, Haikou 571199, China Hainan Medical University Haikou China
| | - Lu-Ling Wu
- College of Pharmacy-Transgenic Laboratory, Hainan Medical University, Haikou 571199, China Hainan Medical University Haikou China
| | - Li-Ping Tang
- School of Pharmaceutical Sciences and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, 650500, China Kunming Medical University Kunming China
| | - Yun Chen
- Hainan Yinggeling National Nature Reserve, Baisha, 572800, China Hainan Yinggeling National Nature Reserve Baisha China
| | - Deng Hong
- College of Pharmacy-Transgenic Laboratory, Hainan Medical University, Haikou 571199, China Hainan Medical University Haikou China
| | - Nian-Kai Zeng
- College of Pharmacy-Transgenic Laboratory, Hainan Medical University, Haikou 571199, China Hainan Medical University Haikou China
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Li K, Li ML, Zhang Q, Zhu SF, Zhou QL. Highly Enantioselective Nickel-Catalyzed Intramolecular Hydroalkenylation of N- and O-Tethered 1,6-Dienes To Form Six-Membered Heterocycles. J Am Chem Soc 2018; 140:7458-7461. [PMID: 29863857 DOI: 10.1021/jacs.8b04703] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A highly enantioselective nickel-catalyzed intramolecular hydroalkenylation of N- or O-tethered 1,6-dienes was developed by using monodentate chiral spiro phosphoramidite ligands. The reaction provides an efficient and straightforward method for preparing very useful six-membered N- and O-heterocycles with high regioselectivity as well as excellent stereoselectivity from easily accessible starting materials under mild reaction conditions. The chiral spiro nickel catalyst developed in this study represents one of the few catalysts for highly enantioselective cyclization of unconjugated dienes.
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Affiliation(s)
- Ke Li
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , China
| | - Mao-Lin Li
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , China
| | - Qi Zhang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , China
| | - Shou-Fei Zhu
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , China
| | - Qi-Lin Zhou
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300071 , China
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Tareq FS, Hasan CM, Rahman MM, Hanafi MMM, Colombi Ciacchi L, Michaelis M, Harder T, Tebben J, Islam MT, Spiteller P. Anti-Staphylococcal Calopins from Fruiting Bodies of Caloboletus radicans. JOURNAL OF NATURAL PRODUCTS 2018; 81:400-404. [PMID: 29381357 DOI: 10.1021/acs.jnatprod.7b00525] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Three new and seven known calopins were isolated from Caloboletus radicans. The structures of the new cyclocalopins, 8-deacetylcyclocalopin B (1), cyclocalopin A-15-ol (2), and 12,15-dimethoxycyclocalopin A (3), were mainly elucidated by NMR and MS data analysis. The stereochemistry of 1-3 was assigned based on NOE correlations and coupling constants and by comparison of their CD spectra with those of similar known calopins. While 1-10 were inactive against two cancer cell lines, they displayed anti-staphylococcal activity against methicillin-resistant Staphylococcus aureus strains (MRSA) with MIC values of 16-256 μg/mL. Moreover, some calopins were active against the fish pathogen Enterococcus faecalis F1B1.
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Affiliation(s)
- Fakir Shahidullah Tareq
- Faculty of Biology and Chemistry, Institute for Organic and Analytical Chemistry, University of Bremen , NW2C, Leobener Straße 7, D-28359 Bremen, Germany
- Department of Pharmacy, Manarat International University , Gulshan-2, Dhaka-1212, Bangladesh
| | - Choudhury Mahmood Hasan
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Dhaka , Dhaka-1000, Bangladesh
| | - M Mukhlesur Rahman
- Medicine Research Group, School of Health, Sport and Bioscience, University of East London , Water Lane, London E15 4LZ, United Kingdom
| | - Mohd Mukrish Mohd Hanafi
- School of Pharmacy, University College London , Gower Street, Kings Cross, London WC1E 6BT, United Kingdom
| | - Lucio Colombi Ciacchi
- Faculty of Production Engineering, University of Bremen , Leobener Straße UFT, D-28359 Bremen, Germany
| | - Monika Michaelis
- Faculty of Production Engineering, University of Bremen , Leobener Straße UFT, D-28359 Bremen, Germany
| | - Tilmann Harder
- Faculty of Biology and Chemistry, University of Bremen , Leobener Straße 6, D-28359 Bremen, Germany
- Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research , Am Handelshafen 12, D-27570 Bremerhaven, Germany
| | - Jan Tebben
- Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research , Am Handelshafen 12, D-27570 Bremerhaven, Germany
| | - Md Tofazzal Islam
- Department of Biotechnology, Bangabandhu Sheikh Mujibur Rahman Agricultural University , Gazipur-1706, Bangladesh
| | - Peter Spiteller
- Faculty of Biology and Chemistry, Institute for Organic and Analytical Chemistry, University of Bremen , NW2C, Leobener Straße 7, D-28359 Bremen, Germany
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9
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Ito A, Wu J, Ozawa N, Choi JH, Hirai H, Kawagishi H. Plant growth regulators from the edible mushroom Leccinum extremiorientale. MYCOSCIENCE 2017. [DOI: 10.1016/j.myc.2017.04.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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10
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Ren Q, Li M, Yuan L. Expeditious assembly of fused dihydropyranones via N-heterocyclic carbene-catalyzed tandem Michael addition/lactonization. Org Biomol Chem 2017; 15:1329-1333. [DOI: 10.1039/c6ob02449a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A convergent and efficient NHC-catalyzed enantioselective tandem Michael addition/lactonization sequence of ynals with 1,2-dione is disclosed. This strategy expeditiously assembles the valuable optically active fused dihydropyranones in good to high yields and with excellent enantioselectivities.
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Affiliation(s)
- Qiao Ren
- College of Pharmaceutical Science
- Southwest University
- Chongqing 400715
- P. R. China
| | - Muyao Li
- College of Pharmaceutical Science
- Southwest University
- Chongqing 400715
- P. R. China
| | - Lujiang Yuan
- College of Pharmaceutical Science
- Southwest University
- Chongqing 400715
- P. R. China
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Abstract
Fungi are widespread in nature and have conquered nearly every ecological niche. Fungi occur not only in terrestrial but also in freshwater and marine environments. Moreover, fungi are known as a rich source of secondary metabolites. Despite these facts, the ecological role of many of these metabolites is still unknown and the chemical ecology of fungi has not been investigated systematically so far. This review intends to present examples of the various chemical interactions of fungi with other fungi, plants, bacteria and animals and to give an overview of the current knowledge of fungal chemical ecology.
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Affiliation(s)
- Peter Spiteller
- Institut für Organische und Analytische Chemie, Universität Bremen, Leobener Straße NW2C, D-28359 Bremen, Germany.
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13
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Wu G, Zhao K, Li YC, Zeng NK, Feng B, Halling RE, Yang ZL. Four new genera of the fungal family Boletaceae. FUNGAL DIVERS 2015. [DOI: 10.1007/s13225-015-0322-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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14
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Zhao K, Wu G, Feng B, Yang ZL. Molecular phylogeny of Caloboletus (Boletaceae) and a new species in East Asia. Mycol Prog 2014. [DOI: 10.1007/s11557-014-1001-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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15
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Molecular phylogenetic analyses redefine seven major clades and reveal 22 new generic clades in the fungal family Boletaceae. FUNGAL DIVERS 2014. [DOI: 10.1007/s13225-014-0283-8] [Citation(s) in RCA: 116] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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16
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Bresinsky A. Ants, Plants and Fungi: A View on Some Patterns of Interaction and Diversity. ACTA ACUST UNITED AC 2013. [DOI: 10.1007/978-3-642-38797-5_1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
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18
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Affiliation(s)
- Braulio M Fraga
- Instituto de Productos Naturales y Agrobiología, CSIC, Avda. Astrof. F. Sánchez 3, 38206, La Laguna, Tenerife, Canary Islands, Spain.
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Luzung MR, Toste FD. Rhenium-Catalyzed Coupling of Propargyl Alcohols and Allyl Silanes. J Am Chem Soc 2003; 125:15760-1. [PMID: 14677963 DOI: 10.1021/ja039124c] [Citation(s) in RCA: 139] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A mild method for the regioselective coupling of propargyl alcohols and allylsilanes is described. The method employs an air- and moisture-tolerant rhenium-oxo complex ((dppm)ReOCl3) as a catalyst for the formation of sp3-carbon-sp3-carbon bonds without the need for prior activation of the propargyl alcohol as a halide or pseudohalide. The stability of the high oxidation state rhenium complex allows for simple reisolation and reuse of the catalyst. A broad range of functional groups is tolerated including aryl halides, olefins, esters, and acid-labile functional groups such as acetals. Furthermore, displacement of the alcohol occurs preferentially even in the presence of other electrophiles such as primary alkyl halides and conjugated esters. The use of enantiopure crotylsilanes as coupling partners allows for the asymmetric construction of two adjacent stereocenters. The potential of this reaction is demonstrated in an asymmetric synthesis of delta-lactone, di-O-methylcalopin.
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Affiliation(s)
- Michael R Luzung
- Center for New Directions in Organic Synthesis, Department of Chemistry, University of California, Berkeley, California 94720, USA
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21
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Ebel H, Polborn K, Steglich W. Synthesis of (+)-9-Demethyl-7,8-dideoxycalopin as a Model for the Determination of the Absolute Stereochemistry of a New Group of Fungal Metabolites. European J Org Chem 2002. [DOI: 10.1002/1099-0690(200209)2002:17<2905::aid-ejoc2905>3.0.co;2-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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