1
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Fan M, Zou L, Tian K, Chen G, Cheng K, Li Y. Chemistry, bioactivity, biosynthesis, and total synthesis of stemmadenine alkaloids. Nat Prod Rep 2023; 40:1022-1044. [PMID: 36728407 DOI: 10.1039/d2np00052k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Covering: up to July 2022Stemmadenine alkaloids are a restrictive sub-group of monoterpene indole alkaloids, represented by two congeners: stemmadenine and vallesamine. Their skeleton is defined by the cleavage of the C-3-C-7 bond of the Strychnos group's pentacyclic scaffold in monoterpene indole alkaloids. The parent alkaloid stemmadenine acts as a key intermediate in the biosynthesis of several major monoterpene indole alkaloid families, including regular Strychnos alkaloids, Aspidosperma alkaloids, and Iboga alkaloids. In this review, a complete coverage of the stemmadenine alkaloids, from the early reports till the present day at 2022, are presented, and their diverse biological activities are briefly described. Moreover, the biosynthetic proposal for stemmadenine and the proposed biogenetic conversion of stemmadenine-type alkaloids into vallesamine-type congeners are discussed in detail. Moreover, the successful synthetic strategies to access the strained stemmadenine scaffolds are fully reviewed.
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Affiliation(s)
- Minghui Fan
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process, Shaoxing University, Shaoxing, 312000, People's Republic of China.
| | - Liangbang Zou
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process, Shaoxing University, Shaoxing, 312000, People's Republic of China.
| | - Kaidi Tian
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process, Shaoxing University, Shaoxing, 312000, People's Republic of China.
| | - Guoqing Chen
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process, Shaoxing University, Shaoxing, 312000, People's Republic of China.
| | - Kai Cheng
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process, Shaoxing University, Shaoxing, 312000, People's Republic of China.
| | - Yong Li
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process, Shaoxing University, Shaoxing, 312000, People's Republic of China.
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2
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Lusi RF, Sennari G, Sarpong R. Strategy Evolution in a Skeletal Remodeling and C-H Functionalization-Based Synthesis of the Longiborneol Sesquiterpenoids. J Am Chem Soc 2022; 144:17277-17294. [PMID: 36098550 DOI: 10.1021/jacs.2c08136] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Detailed herein are our synthesis studies of longiborneol and related natural products. Our overarching goals of utilizing a "camphor first" strategy enabled by skeletal remodeling of carvone, and late-stage diversification using C-H functionalizations, led to divergent syntheses of the target natural products. Our initial approach proposed a lithiate addition to unite two fragments followed by a Conia-ene or Pd-mediated cycloalkylation reaction sequence to install the seven-membered ring emblematic of the longibornane core. This approach was unsuccessful and evolved into a revised plan that employed a Wittig coupling and a radical cyclization to establish the core. A reductive radical cyclization, which was explored first, led to a synthesis of copaborneol, a structural isomer of longiborneol. Alternatively, a metal-hydride hydrogen atom transfer-initiated cyclization was effective for a synthesis of longiborneol. Late-stage C-H functionalization of the longibornane core led to a number of hydroxylated longiborneol congeners. The need for significant optimization of the strategies that were employed as well as the methods for C-H functionalization to implement these strategies highlights the ongoing challenges in applying these powerful reactions. Nevertheless, the reported approach enables functionalization of every natural product-relevant C-H bond in the longibornane skeleton.
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Affiliation(s)
- Robert F Lusi
- Department of Chemistry, University of California─Berkeley, Berkeley, California 94720, United States
| | - Goh Sennari
- Department of Chemistry, University of California─Berkeley, Berkeley, California 94720, United States.,O̅mura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Richmond Sarpong
- Department of Chemistry, University of California─Berkeley, Berkeley, California 94720, United States
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3
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Hsu D, Hwang T. Stereoselective Formal Synthesis of Platencin. ChemistrySelect 2022. [DOI: 10.1002/slct.202103794] [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)
- Day‐Shin Hsu
- Department of Chemistry and Biochemistry National Chung Cheng University Minhsiung, Chiayi Taiwan 62102
| | - Tai‐Yun Hwang
- Department of Chemistry and Biochemistry National Chung Cheng University Minhsiung, Chiayi Taiwan 62102
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4
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Michelet V. Gold-Catalyzed Reactions Towards Diversity: From Simple Substrates to Functionalized Carbo- and Heterocycles. CHEM REC 2021; 21:3884-3896. [PMID: 34747571 DOI: 10.1002/tcr.202100253] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Revised: 10/23/2021] [Indexed: 12/29/2022]
Abstract
The field of gold catalysis has been in constant expansion during the last twenty years. Based on the precept of π-activation of unsaturated simple substrates, several new rearrangements have been discovered, implying aryl, alkyne, alkene or keto derivatives as key partners. In this personal account, the main contributions in the field of gold catalysis from our group will be highlighted, emphasizing the recent reports, starting from 1,6- and 1,5-enynes and then moving to keto-ynes derivatives. The gold-catalyzed reactions will be presented starting from classical skeletal rearrangements (cycloisomerization) and then domino processes. In each part, the presentation of asymmetric versions will be highlighted.
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Affiliation(s)
- Véronique Michelet
- Côte d'Azur University, Institut de Chimie de Nice, UMR 7272 CNRS, Valrose Park, Faculty of Sciences, 06108, Nice Cedex 2, France
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5
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Zhang X, Wang Y, Chen P, Cai X, Jia Y. Protecting‐Group‐Free
Total Synthesis of (–)‐Pallambins A—D. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202100001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Xiwu Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University 38 Xueyuan Road Beijing 100191 China
| | - Yuan Wang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University 38 Xueyuan Road Beijing 100191 China
| | - Peng Chen
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University 38 Xueyuan Road Beijing 100191 China
| | - Xinxian Cai
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University 38 Xueyuan Road Beijing 100191 China
| | - Yanxing Jia
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University 38 Xueyuan Road Beijing 100191 China
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6
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Davenel V, Nisole C, Fontaine-Vive F, Fourquez JM, Chollet AM, Michelet V. Gold-Catalyzed Cycloisomerization of 1,6-Cyclohexenylalkyne: An Efficient Entry to Bicyclo[3.2.1]oct-2-ene and Bicyclo[3.3.1]nonadiene. J Org Chem 2020; 85:12657-12669. [PMID: 32875797 DOI: 10.1021/acs.joc.0c01841] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
An efficient and mild synthetic route for the preparation of functionalized bicyclo[3.2.1]oct-2-ene and bicyclo[3.3.1]nonadiene via gold-mediated cycloisomerization of 1,6-enynes has been developed. This atom-economical catalytic process was optimized and relied on the efficiency of IPrAuNTf2 allowing the formation of functionalized bicyclic adducts in 55-91% isolated yields (18 products). The reliable access to bicyclic derivatives was demonstrated on a 3 g scale with a low catalyst loading. The process occurred on a 5-exo versus 6-endo pathway depending on the substitution of the alkynyl moiety. Density functional theory (DFT) calculations were performed on the stability of intermediates, and this study corroborated the endo/exo ratio and the mechanistic pathway with key intermediates. Reduction of the ester moiety and hydrogenation of the exo-methylene double bond of the bicyclo[3.2.1]oct-2-ene adduct illustrated the potential postfunctionalization of bicyclic derivatives.
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Affiliation(s)
- Vincent Davenel
- PEX Chimie, Institut de Recherches Servier, 125 Chemin de Ronde, 78290 Croissy/Seine, France.,Institut de Chimie de Nice, University Côte d'Azur, University Nice Sophia-Antipolis, Parc Valrose, 28 avenue Valrose, 06100 Nice, France
| | - Christian Nisole
- PEX Chimie, Institut de Recherches Servier, 125 Chemin de Ronde, 78290 Croissy/Seine, France
| | - Fabien Fontaine-Vive
- Institut de Chimie de Nice, University Côte d'Azur, University Nice Sophia-Antipolis, Parc Valrose, 28 avenue Valrose, 06100 Nice, France
| | - Jean-Marie Fourquez
- PEX Chimie, Institut de Recherches Servier, 125 Chemin de Ronde, 78290 Croissy/Seine, France
| | - Anne-Marie Chollet
- PEX Chimie, Institut de Recherches Servier, 125 Chemin de Ronde, 78290 Croissy/Seine, France
| | - Véronique Michelet
- Institut de Chimie de Nice, University Côte d'Azur, University Nice Sophia-Antipolis, Parc Valrose, 28 avenue Valrose, 06100 Nice, France
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7
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Huang E, Zhang Z, Ye S, Chen Y, Luo W, Qian P, Ye L. Copper‐Catalyzed
Carbocyclization of Silyl Enol Ether Tethered Ynamides for Efficient and Practical Synthesis of
2‐Azabicyclo
[3.2.0] Compounds
†. CHINESE J CHEM 2020. [DOI: 10.1002/cjoc.202000218] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- En‐He Huang
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University Xiamen Fujian 361005 China
| | - Zhi‐Xin Zhang
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University Xiamen Fujian 361005 China
| | - Si‐Han Ye
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University Xiamen Fujian 361005 China
| | - Yang‐Bo Chen
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University Xiamen Fujian 361005 China
| | - Wen‐Feng Luo
- Institute of New Materials & Industry Technology, College of Chemistry & Materials Engineering, Wenzhou University Wenzhou, Zhejiang 325035 China
| | - Peng‐Cheng Qian
- Institute of New Materials & Industry Technology, College of Chemistry & Materials Engineering, Wenzhou University Wenzhou, Zhejiang 325035 China
| | - Long‐Wu Ye
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University Xiamen Fujian 361005 China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences Shanghai 200032 China
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8
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Wang J, Hong B, Hu D, Kadonaga Y, Tang R, Lei X. Protecting-Group-Free Syntheses of ent-Kaurane Diterpenoids: [3+2+1] Cycloaddition/Cycloalkenylation Approach. J Am Chem Soc 2020; 142:2238-2243. [DOI: 10.1021/jacs.9b13722] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Jin Wang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
- Department of Chemical Biology, Synthetic and Functional Biomolecules Center, Peking University, Beijing 100871, China
| | - Benke Hong
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
- Department of Chemical Biology, Synthetic and Functional Biomolecules Center, Peking University, Beijing 100871, China
| | - Dachao Hu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
- Department of Chemical Biology, Synthetic and Functional Biomolecules Center, Peking University, Beijing 100871, China
| | - Yuichiro Kadonaga
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
- Department of Chemical Biology, Synthetic and Functional Biomolecules Center, Peking University, Beijing 100871, China
| | - Ruyao Tang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
- Department of Chemical Biology, Synthetic and Functional Biomolecules Center, Peking University, Beijing 100871, China
| | - Xiaoguang Lei
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
- Department of Chemical Biology, Synthetic and Functional Biomolecules Center, Peking University, Beijing 100871, China
- Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China
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9
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Abstract
The first asymmetric total synthesis of (+)-jatrophalactam was reported, which unambiguously determined the absolute configuration of the titled natural product. The key features entail a conformationally controlled cyclopropanation, a Meldrum's acid adduct-engaged macrolactam formation, and a Pd(II)-mediated oxidative cyclization.
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Affiliation(s)
- Jianhong Gao
- Department of Chemistry , Zhejiang University , Hangzhou 310058 , China
| | - Dongyu Sun
- Department of Chemistry , Zhejiang University , Hangzhou 310058 , China
| | - Kuan Yu
- Department of Chemistry , Zhejiang University , Hangzhou 310058 , China
| | - Hujun Xie
- Department of Applied Chemistry , Zhejiang Gongshang University , Hangzhou 310018 , China
| | - Hanfeng Ding
- Department of Chemistry , Zhejiang University , Hangzhou 310058 , China
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10
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Chen G, Wang C, Zou L, Zhu J, Li Y, Qi C. Six-Step Total Synthesis of (±)-Conolidine. JOURNAL OF NATURAL PRODUCTS 2019; 82:2972-2978. [PMID: 31686504 DOI: 10.1021/acs.jnatprod.9b00302] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A concise total synthesis of (±)-conolidine, a potent nonopioid analgesic, in 19% overall yield is described here. A gold(I)-catalyzed Conia-ene reaction (Toste cyclization) and a Pictet-Spengler reaction served as key transformations for assembling the 1-azabicyclo[4.2.2]decane core and defining the geometry of the exocyclic double bond. The activation energies of formation of the vinyl-gold intermediates were calculated and revealed a silyl enol ether with an unprotected indole moiety as a suitable precursor for the Toste cyclization. This six-step synthesis did not involve any nonstrategic redox manipulations.
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Affiliation(s)
- Guoqing Chen
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process , Shaoxing University , Shaoxing , 312000 , People's Republic of China
| | - Chen Wang
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process , Shaoxing University , Shaoxing , 312000 , People's Republic of China
| | - Liangbang Zou
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process , Shaoxing University , Shaoxing , 312000 , People's Republic of China
| | - Jiahao Zhu
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process , Shaoxing University , Shaoxing , 312000 , People's Republic of China
| | - Yong Li
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process , Shaoxing University , Shaoxing , 312000 , People's Republic of China
| | - Chenze Qi
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process , Shaoxing University , Shaoxing , 312000 , People's Republic of China
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11
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Xu Y, Sun Q, Tan T, Yang M, Yuan P, Wu S, Lu X, Hong X, Ye L. Organocatalytic Enantioselective Conia‐Ene‐Type Carbocyclization of Ynamide Cyclohexanones: Regiodivergent Synthesis of Morphans and Normorphans. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201908495] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Yin Xu
- State Key Laboratory of Physical Chemistry of Solid SurfacesKey Laboratory for Chemical Biology of Fujian Province, and College of Chemistry and Chemical EngineeringXiamen University Xiamen 361005 China
| | - Qing Sun
- State Key Laboratory of Physical Chemistry of Solid SurfacesKey Laboratory for Theoretical and Computational Chemistry of Fujian Province, and College of Chemistry and Chemical EngineeringXiamen University Xiamen 361005 China
| | - Tong‐De Tan
- State Key Laboratory of Physical Chemistry of Solid SurfacesKey Laboratory for Chemical Biology of Fujian Province, and College of Chemistry and Chemical EngineeringXiamen University Xiamen 361005 China
| | - Ming‐Yang Yang
- State Key Laboratory of Physical Chemistry of Solid SurfacesKey Laboratory for Chemical Biology of Fujian Province, and College of Chemistry and Chemical EngineeringXiamen University Xiamen 361005 China
| | - Peng Yuan
- State Key Laboratory of Physical Chemistry of Solid SurfacesKey Laboratory for Chemical Biology of Fujian Province, and College of Chemistry and Chemical EngineeringXiamen University Xiamen 361005 China
| | - Shao‐Qi Wu
- Department of ChemistryZhejiang University Hangzhou 310027 China
| | - Xin Lu
- State Key Laboratory of Physical Chemistry of Solid SurfacesKey Laboratory for Theoretical and Computational Chemistry of Fujian Province, and College of Chemistry and Chemical EngineeringXiamen University Xiamen 361005 China
| | - Xin Hong
- Department of ChemistryZhejiang University Hangzhou 310027 China
| | - Long‐Wu Ye
- State Key Laboratory of Physical Chemistry of Solid SurfacesKey Laboratory for Chemical Biology of Fujian Province, and College of Chemistry and Chemical EngineeringXiamen University Xiamen 361005 China
- State Key Laboratory of Organometallic ChemistryShanghai Institute of Organic ChemistryChinese Academy of Sciences Shanghai 200032 China
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12
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Xu Y, Sun Q, Tan TD, Yang MY, Yuan P, Wu SQ, Lu X, Hong X, Ye LW. Organocatalytic Enantioselective Conia-Ene-Type Carbocyclization of Ynamide Cyclohexanones: Regiodivergent Synthesis of Morphans and Normorphans. Angew Chem Int Ed Engl 2019; 58:16252-16259. [PMID: 31444882 DOI: 10.1002/anie.201908495] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 08/07/2019] [Indexed: 12/13/2022]
Abstract
Described herein is an organocatalytic enantioselective desymmetrizing cycloisomerization of arylsulfonyl-protected ynamide cyclohexanones, representing the first metal-free asymmetric Conia-ene-type carbocyclization. This method allows the highly efficient and atom-economical construction of a range of valuable morphans with wide substrate scope and excellent enantioselectivity (up to 97 % ee). In addition, such a cycloisomerization of alkylsulfonyl-protected ynamide cyclohexanones can lead to the divergent synthesis of normorphans as the main products with high enantioselectivity (up to 90 % ee). Moreover, theoretical calculations are employed to elucidate the origins of regioselectivity and enantioselectivity.
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Affiliation(s)
- Yin Xu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory for Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Qing Sun
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory for Theoretical and Computational Chemistry of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Tong-De Tan
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory for Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Ming-Yang Yang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory for Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Peng Yuan
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory for Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Shao-Qi Wu
- Department of Chemistry, Zhejiang University, Hangzhou, 310027, China
| | - Xin Lu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory for Theoretical and Computational Chemistry of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Xin Hong
- Department of Chemistry, Zhejiang University, Hangzhou, 310027, China
| | - Long-Wu Ye
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory for Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China.,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, 200032, China
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13
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Abstract
Chiral salen-metal complexes are among the most versatile asymmetric catalysts and have found utility in fields ranging from materials chemistry to organic synthesis. These complexes are capable of inducing chirality in products formed from a wide variety of chemical processes, often with close to perfect stereoinduction. Salen ligands are tunable for steric as well as electronic properties, and their ability to coordinate a large number of metals gives the derived chiral salen-metal complex very broad utility in asymmetric catalysis. This review primarily summarizes developments in chiral salen-metal catalysis over the last two decades with particular emphasis on those applications of importance in asymmetric synthesis.
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Affiliation(s)
- Subrata Shaw
- Center for the Development of Therapeutics , Broad Institute of MIT and Harvard , 415 Main Street , Cambridge , Massachusetts 02142 , United States
| | - James D White
- Department of Chemistry , Oregon State University , Corvallis , Oregon 97331 , United States
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14
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Affiliation(s)
- Ming Yang
- Department of Chemistry, University of Chicago, 5735 South Ellis Avenue, Chicago, Illinois 60637, United States
| | - Fangjie Yin
- Department of Chemistry, University of Chicago, 5735 South Ellis Avenue, Chicago, Illinois 60637, United States
| | - Haruka Fujino
- Department of Chemistry, University of Chicago, 5735 South Ellis Avenue, Chicago, Illinois 60637, United States
| | - Scott A. Snyder
- Department of Chemistry, University of Chicago, 5735 South Ellis Avenue, Chicago, Illinois 60637, United States
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15
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Affiliation(s)
- Day-Shin Hsu
- Department of Chemistry and Biochemistry; National Chung Cheng University; 621 Minhsiung Taiwan
| | - Tai-Yu Hwang
- Department of Chemistry and Biochemistry; National Chung Cheng University; 621 Minhsiung Taiwan
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16
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Defieber C, Mohr JT, Grabovyi GA, Stoltz BM. Short Enantioselective Formal Synthesis of (-)-Platencin. SYNTHESIS-STUTTGART 2018; 50:4359-4368. [PMID: 31061542 DOI: 10.1055/s-0037-1610437] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
A short enantioselective formal synthesis of the antibiotic natural product platencin is reported. Key steps in the synthesis include enantioselective decarboxylation alkylation, aldehyde/olefin radical cyclization, and regioselective aldol cyclization.
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Affiliation(s)
- Christian Defieber
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering California Institute of Technology, 1200 E California Blvd. MC 101-20, Pasadena, CA 91125, USA
| | - Justin T Mohr
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering California Institute of Technology, 1200 E California Blvd. MC 101-20, Pasadena, CA 91125, USA.,Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, IL 60607, USA
| | - Gennadii A Grabovyi
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, IL 60607, USA
| | - Brian M Stoltz
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering California Institute of Technology, 1200 E California Blvd. MC 101-20, Pasadena, CA 91125, USA
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17
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Liu X, Zhou Y, Yang Z, Li Q, Zhao L, Liu P. Iodine-Catalyzed C–H Amidation and Imination at the 2α-Position of 2,3-Disubstituted Indoles with Chloramine Salts. J Org Chem 2018; 83:4665-4673. [DOI: 10.1021/acs.joc.8b00286] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Xiaozu Liu
- Pharmacy School, Zunyi Medical University, Zunyi 563003, P. R. China
| | - Yuxiang Zhou
- Pharmacy School, Zunyi Medical University, Zunyi 563003, P. R. China
| | - Zhongqin Yang
- Pharmacy School, Zunyi Medical University, Zunyi 563003, P. R. China
| | - Qin Li
- Pharmacy School, Zunyi Medical University, Zunyi 563003, P. R. China
| | - Liang Zhao
- Pharmacy School, Zunyi Medical University, Zunyi 563003, P. R. China
| | - Peijun Liu
- Pharmacy School, Zunyi Medical University, Zunyi 563003, P. R. China
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18
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Hung K, Hu X, Maimone TJ. Total synthesis of complex terpenoids employing radical cascade processes. Nat Prod Rep 2018; 35:174-202. [PMID: 29417970 PMCID: PMC5858714 DOI: 10.1039/c7np00065k] [Citation(s) in RCA: 121] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Covering: 2011-2017Radical cyclizations have a rich history in organic chemistry and have been particularly generous to the field of natural product synthesis. Owing to their ability to operate in highly congested molecular quarters, and with significant functional group compatibility, these transformations have enabled the synthesis of numerous polycyclic terpenoid natural products over the past several decades. Moreover, when programmed accordingly into a synthetic plan, radical cascade processes can be used to rapidly assemble molecular complexity, much in the same way nature rapidly constructs terpene frameworks through cationic cyclization pathways. This review highlights recent total syntheses of complex terpenoids (from 2011-2017) employing C-C bond-forming radical cascade sequences.
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Affiliation(s)
- Kevin Hung
- Department of Chemistry, University of California - Berkeley, Berkeley, CA 94720, USA.
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19
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Lee Y, Rochette EM, Kim J, Chen DYK. An Asymmetric Pathway to Dendrobine by a Transition-Metal-Catalyzed Cascade Process. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201705713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yujin Lee
- Department of Chemistry; Seoul National University; Gwanak-1 Gwanak-ro, Gwanak-gu Seoul 151-742 South Korea
| | - Elise M. Rochette
- Department of Chemistry; Seoul National University; Gwanak-1 Gwanak-ro, Gwanak-gu Seoul 151-742 South Korea
| | - Junyong Kim
- Department of Chemistry; Seoul National University; Gwanak-1 Gwanak-ro, Gwanak-gu Seoul 151-742 South Korea
| | - David Y.-K. Chen
- Department of Chemistry; Seoul National University; Gwanak-1 Gwanak-ro, Gwanak-gu Seoul 151-742 South Korea
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20
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Lee Y, Rochette EM, Kim J, Chen DYK. An Asymmetric Pathway to Dendrobine by a Transition-Metal-Catalyzed Cascade Process. Angew Chem Int Ed Engl 2017; 56:12250-12254. [DOI: 10.1002/anie.201705713] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Yujin Lee
- Department of Chemistry; Seoul National University; Gwanak-1 Gwanak-ro, Gwanak-gu Seoul 151-742 South Korea
| | - Elise M. Rochette
- Department of Chemistry; Seoul National University; Gwanak-1 Gwanak-ro, Gwanak-gu Seoul 151-742 South Korea
| | - Junyong Kim
- Department of Chemistry; Seoul National University; Gwanak-1 Gwanak-ro, Gwanak-gu Seoul 151-742 South Korea
| | - David Y.-K. Chen
- Department of Chemistry; Seoul National University; Gwanak-1 Gwanak-ro, Gwanak-gu Seoul 151-742 South Korea
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21
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A brief history of antibiotics and select advances in their synthesis. J Antibiot (Tokyo) 2017; 71:153-184. [DOI: 10.1038/ja.2017.62] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 04/17/2017] [Accepted: 04/23/2017] [Indexed: 12/20/2022]
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22
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Bacterial fatty acid metabolism in modern antibiotic discovery. Biochim Biophys Acta Mol Cell Biol Lipids 2016; 1862:1300-1309. [PMID: 27668701 DOI: 10.1016/j.bbalip.2016.09.014] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 09/12/2016] [Accepted: 09/19/2016] [Indexed: 12/28/2022]
Abstract
Bacterial fatty acid synthesis is essential for many pathogens and different from the mammalian counterpart. These features make bacterial fatty acid synthesis a desirable target for antibiotic discovery. The structural divergence of the conserved enzymes and the presence of different isozymes catalyzing the same reactions in the pathway make bacterial fatty acid synthesis a narrow spectrum target rather than the traditional broad spectrum target. Furthermore, bacterial fatty acid synthesis inhibitors are single-targeting, rather than multi-targeting like traditional monotherapeutic, broad-spectrum antibiotics. The single-targeting nature of bacterial fatty acid synthesis inhibitors makes overcoming fast-developing, target-based resistance a necessary consideration for antibiotic development. Target-based resistance can be overcome through multi-targeting inhibitors, a cocktail of single-targeting inhibitors, or by making the single targeting inhibitor sufficiently high affinity through a pathogen selective approach such that target-based mutants are still susceptible to therapeutic concentrations of drug. Many of the pathogens requiring new antibiotic treatment options encode for essential bacterial fatty acid synthesis enzymes. This review will evaluate the most promising targets in bacterial fatty acid metabolism for antibiotic therapeutics development and review the potential and challenges in advancing each of these targets to the clinic and circumventing target-based resistance. This article is part of a Special Issue entitled: Bacterial Lipids edited by Russell E. Bishop.
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23
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Holmbo SD, Godfrey NA, Hirner JJ, Pronin SV. A Catalytic Intermolecular Formal Ene Reaction between Ketone-Derived Silyl Enol Ethers and Alkynes. J Am Chem Soc 2016; 138:12316-9. [PMID: 27626462 DOI: 10.1021/jacs.6b06847] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A catalytic formal ene reaction between ketone-derived silyl enol ethers and terminal alkynes is described. This transformation is uniquely capable of bimolecular assembly of 2-siloxy-1,4-dienes and can be used to access β,γ-unsaturated ketones containing quaternary carbons in the α-position.
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Affiliation(s)
- Stephen D Holmbo
- Department of Chemistry, University of California , Irvine, California 92697-2025, United States
| | - Nicole A Godfrey
- Department of Chemistry, University of California , Irvine, California 92697-2025, United States
| | - Joshua J Hirner
- Department of Chemistry, University of California , Irvine, California 92697-2025, United States
| | - Sergey V Pronin
- Department of Chemistry, University of California , Irvine, California 92697-2025, United States
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24
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Roest PC, Michel NWM, Batey RA. DABO Boronate Promoted Conjugate Allylation of α,β-Unsaturated Aldehydes Using Copper(II) Catalysis. J Org Chem 2016; 81:6774-8. [DOI: 10.1021/acs.joc.6b00782] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Pjotr C. Roest
- Davenport
Research Laboratories,
Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON, Canada M5S 3H6
| | - Nicholas W. M. Michel
- Davenport
Research Laboratories,
Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON, Canada M5S 3H6
| | - Robert A. Batey
- Davenport
Research Laboratories,
Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON, Canada M5S 3H6
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25
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Carrër A, Péan C, Perron-Sierra F, Mirguet O, Michelet V. Gold-Catalyzed Cyclizations of Alkynyl Silyl Enol Ethers: An Easy Access to Bicyclo[3.2.1]octanone Derivatives. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201501135] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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26
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Li Y, Zhu S, Li J, Li A. Asymmetric Total Syntheses of Aspidodasycarpine, Lonicerine, and the Proposed Structure of Lanciferine. J Am Chem Soc 2016; 138:3982-5. [PMID: 26961469 DOI: 10.1021/jacs.6b00764] [Citation(s) in RCA: 79] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Aspidodasycarpine and lonicerine are a pair of epimeric aspidophylline-type alkaloids bearing vicinal quaternary C7 and C16. The first and enantioselective total syntheses of these molecules are described here. A Ru-catalyzed asymmetric transfer hydrogenation established the first stereocenter. An Au-promoted Toste cyclization was exploited to assemble the bridged tetracyclic core and define the geometry of the exocyclic olefin; electron deficient (p-CF3C6H4)3P was a suitable ligand for this transformation. An aldol condensation followed by an intramolecular indole C3 alkylation constructed the adjacent quaternary C7 and C16 diastereoselectively, leading to a pentacyclic lactol as an advanced common intermediate for synthesizing both alkaloids. The proposed structure of lanciferine, a highly oxidized congener of aspidodasycarpine, was synthesized from the lactol by tuning the oxidation states of various carbons.
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Affiliation(s)
- Yong Li
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Collaborative Innovation Center of Chemistry for Life Sciences, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Road, Shanghai 200032, China.,Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process, Shaoxing University , Shaoxing 312000, China
| | - Shugao Zhu
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Collaborative Innovation Center of Chemistry for Life Sciences, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Road, Shanghai 200032, China
| | - Jian Li
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Collaborative Innovation Center of Chemistry for Life Sciences, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Road, Shanghai 200032, China
| | - Ang Li
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Collaborative Innovation Center of Chemistry for Life Sciences, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Road, Shanghai 200032, China
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27
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A Review on Platensimycin: A Selective FabF Inhibitor. INTERNATIONAL JOURNAL OF MEDICINAL CHEMISTRY 2016; 2016:9706753. [PMID: 26942008 PMCID: PMC4749828 DOI: 10.1155/2016/9706753] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Revised: 12/25/2015] [Accepted: 12/31/2015] [Indexed: 11/17/2022]
Abstract
Emerging resistance to existing antibiotics is an inevitable matter of concern in the treatment of bacterial infection. Naturally occurring unique class of natural antibiotic, platensimycin, a secondary metabolite from Streptomyces platensis, is an excellent breakthrough in recent antibiotic research with unique structural pattern and significant antibacterial activity. β-Ketoacyl-(acyl-carrier-protein (ACP)) synthase (FabF) whose Gram-positive bacteria need to biosynthesize cell membranes is the target of inhibition of platensimycin. So, isolation, retrosynthetic analysis, synthesis of platensimycin, and analogues of platensimycin synthesized till today are the objectives of this review which may be helpful to further investigate and to reveal untouched area on this molecule and to obtain a potential antibacterial lead with enhanced significant antibacterial activity.
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28
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Yoshimitsu T. Radical Cyclization Strategies in Total Syntheses of Bioactive Fused Cyclic Natural Products. J SYN ORG CHEM JPN 2016. [DOI: 10.5059/yukigoseikyokaishi.74.350] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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29
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Takanashi N, Suzuki K, Kitajima M, Takayama H. Total synthesis of conolidine and apparicine. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2015.12.029] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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30
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Le Bras J, Muzart J. Base-free palladium-mediated cycloalkenylations of olefinic enolic systems. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.09.060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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31
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Huang B, Guo L, Jia Y. Protecting-Group-Free Enantioselective Synthesis of (−)-Pallavicinin and (+)-Neopallavicinin. Angew Chem Int Ed Engl 2015; 54:13599-603. [DOI: 10.1002/anie.201506575] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Indexed: 12/17/2022]
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32
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Huang B, Guo L, Jia Y. Protecting-Group-Free Enantioselective Synthesis of (−)-Pallavicinin and (+)-Neopallavicinin. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201506575] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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33
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Dhambri S, Mohammad S, Van Buu ON, Galvani G, Meyer Y, Lannou MI, Sorin G, Ardisson J. Recent advances in the synthesis of natural multifunctionalized decalins. Nat Prod Rep 2015; 32:841-64. [PMID: 25891138 DOI: 10.1039/c4np00142g] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
This review highlights recent innovative synthetic strategies developed for the stereoselective construction of natural complex decalin systems. It offers an insight into various synthetic targets and approaches and provides information for developments within the area of natural products as well as synthetic methodology.
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Affiliation(s)
- S Dhambri
- Paris Descartes University, Sorbonne Paris Cité, Faculté des Sciences Pharmaceutiques et Biologiques, Unité CNRS UMR 8638 COMÈTE, 4 avenue de l'observatoire, 75270 PARIS Cedex 06.
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34
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Li X, Peng S, Li L, Huang Y. Synthesis of tetrasubstituted 1-silyloxy-3-aminobutadienes and chemistry beyond Diels-Alder reactions. Nat Commun 2015; 6:6913. [PMID: 25898310 PMCID: PMC4411301 DOI: 10.1038/ncomms7913] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2015] [Accepted: 03/12/2015] [Indexed: 01/20/2023] Open
Abstract
Electron-rich dienes have revolutionized the synthesis of complex compounds since the discovery of the legendary Diels–Alder cycloaddition reaction. This highly efficient bond-forming process has served as a fundamental strategy to assemble many structurally formidable molecules. Amino silyloxy butadienes are arguably the most reactive diene species that are isolable and bottleable. Since the pioneering discovery by Rawal, 1-amino-3-silyloxybutadienes have been found to undergo cycloaddition reactions with unparalleled mildness, leading to significant advances in both asymmetric catalysis and total synthesis of biologically active natural products. In sharp contrast, this class of highly electron-rich conjugated olefins has not been studied in non-cycloaddition reactions. Here we report a simple synthesis of tetrasubstituted 1-silyloxy-3-aminobutadienes, a complementarily substituted Rawal's diene. This family of molecules is found to undergo a series of intriguing chemical transformations orthogonal to cycloaddition reactions. Structurally diverse polysubstituted ring architectures are established in one step from these dienes. Electron-rich dienes have been shown to have multiple uses in synthesis by means of cycloaddition reactions. Here, the authors report a series of non-cycloaddition-based reactions of these compounds, giving access to 4-, 5-, 6- and 7-membered ring systems.
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Affiliation(s)
- Xijian Li
- Key Laboratory of Chemical Genomics, Peking University, Shenzhen Graduate School, Shenzhen 518055, China
| | - Siyu Peng
- Key Laboratory of Chemical Genomics, Peking University, Shenzhen Graduate School, Shenzhen 518055, China
| | - Li Li
- Key Laboratory of Chemical Genomics, Peking University, Shenzhen Graduate School, Shenzhen 518055, China
| | - Yong Huang
- Key Laboratory of Chemical Genomics, Peking University, Shenzhen Graduate School, Shenzhen 518055, China
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35
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Wang J, Sun WB, Li YZ, Wang X, Sun BF, Lin GQ, Zou JP. A concise formal synthesis of platencin. Org Chem Front 2015. [DOI: 10.1039/c5qo00065c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A formal synthesis of platencin features an organocatalytic approach to the [2.2.2] bicycle, a radical reductive elimination, a Au-catalyzed rearrangement and a Rh-catalyzed hydrosilylation.
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Affiliation(s)
- Jie Wang
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances
- Shanghai Institute of Organic Chemistry
- Shanghai 200032
- China
| | - Wang-Bin Sun
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances
- Shanghai Institute of Organic Chemistry
- Shanghai 200032
- China
- Key Laboratory of Organic Synthesis of Jiangsu Province
| | - Ying-Zi Li
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances
- Shanghai Institute of Organic Chemistry
- Shanghai 200032
- China
| | - Xuan Wang
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances
- Shanghai Institute of Organic Chemistry
- Shanghai 200032
- China
| | - Bing-Feng Sun
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances
- Shanghai Institute of Organic Chemistry
- Shanghai 200032
- China
| | - Guo-Qiang Lin
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances
- Shanghai Institute of Organic Chemistry
- Shanghai 200032
- China
| | - Jian-Ping Zou
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry and Chemical Engineering
- Soochow University
- Suzhou
- China
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36
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Li YZ, Wang J, Sun WB, Shan YF, Sun BF, Lin GQ, Zou JP. Enantioselective synthesis of bicyclo[2.2.2]octane-1-carboxylates under metal free conditions. Org Chem Front 2015. [DOI: 10.1039/c4qo00311j] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A new tandem reaction permits rapid access to bicyclo[2.2.2]octane-1-carboxylates with excellent enantioselectivities under metal free, mild, and operationally simple conditions.
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Affiliation(s)
- Ying-Zi Li
- Key Laboratory of Synthetic Chemistry of Natural Substances
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- China
| | - Jie Wang
- Key Laboratory of Synthetic Chemistry of Natural Substances
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- China
| | - Wang-Bin Sun
- Key Laboratory of Synthetic Chemistry of Natural Substances
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- China
| | - Yi-Fan Shan
- Key Laboratory of Synthetic Chemistry of Natural Substances
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- China
| | - Bing-Feng Sun
- Key Laboratory of Synthetic Chemistry of Natural Substances
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- China
| | - Guo-Qiang Lin
- Key Laboratory of Synthetic Chemistry of Natural Substances
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- China
| | - Jian-Ping Zou
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry and Chemical Engineering
- Soochow University
- Suzhou
- China
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37
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Chang EL, Schwartz BD, Draffan AG, Banwell MG, Willis AC. A Chemoenzymatic and Fully Stereocontrolled Total Synthesis of the Antibacterial Natural Product (−)-Platencin. Chem Asian J 2014; 10:427-39. [DOI: 10.1002/asia.201403069] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Indexed: 12/25/2022]
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38
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Moustafa GAI, Saku Y, Aoyama H, Yoshimitsu T. A new route to platencin via decarboxylative radical cyclization. Chem Commun (Camb) 2014; 50:15706-9. [PMID: 25361063 DOI: 10.1039/c4cc07316a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new approach to platencin, a potent antibiotic isolated from Streptomyces platensis, has been established. The highly congested tricyclic core of the natural product was successfully constructed by decarboxylative radical cyclization of an alkynyl silyl ester with Pb(OAc)4 in the presence of pyridine in refluxing 1,4-dioxane. The key decarboxylation, which likely takes place via lead(IV) esterification followed by carbon-centered radical generation and subsequent capture of the radical with a triple bond, allows the rapid construction of the twisted polycyclic system.
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Affiliation(s)
- Gamal A I Moustafa
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871, Japan.
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39
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A unified strategy for the synthesis of (−)-maoecrystal Z, (−)-trichorabdal A, and (−)-longikaurin E. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.03.071] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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40
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Yoshimitsu T. Endeavors to access molecular complexity: strategic use of free radicals in natural product synthesis. CHEM REC 2014; 14:268-79. [PMID: 24677484 DOI: 10.1002/tcr.201300024] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2013] [Indexed: 01/16/2023]
Abstract
Free radicals, which in the past were considered unruly chemical species, have become manageable and indispensable for synthetic organic chemistry. The unique nature of free radicals has allowed practitioners in organic synthesis to design flexible approaches to produce various materials ranging from small molecules to polymers. The present Personal Account describes the author's endeavors to create molecular complexity by the strategic use of free radicals, with an emphasis on the synthesis of bioactive natural products.
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Affiliation(s)
- Takehiko Yoshimitsu
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka, 565-0871, Japan.
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41
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Affiliation(s)
- Hélène Pellissier
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313 13397, Marseille, France
| | - Hervé Clavier
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313 13397, Marseille, France
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42
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Xiong X, Li Y, Lu Z, Wan M, Deng J, Wu S, Shao H, Li A. Synthesis of the 6,6,5,7-tetracyclic core of daphnilongeranin B. Chem Commun (Camb) 2014; 50:5294-7. [DOI: 10.1039/c3cc47873d] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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43
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Zhu L, Zhou C, Yang W, He S, Cheng GJ, Zhang X, Lee CS. Formal Syntheses of (±)-Platensimycin and (±)-Platencin via a Dual-Mode Lewis Acid Induced Cascade Cyclization Approach. J Org Chem 2013; 78:7912-29. [DOI: 10.1021/jo401105q] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Lizhi Zhu
- Laboratory of Chemical Genomics,
School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen University
Town, Xili, Shenzhen 518055, China
| | - Congshan Zhou
- Laboratory of Chemical Genomics,
School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen University
Town, Xili, Shenzhen 518055, China
- College of Chemistry and Chemical
Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Wei Yang
- Laboratory of Chemical Genomics,
School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen University
Town, Xili, Shenzhen 518055, China
| | - Shuzhong He
- Laboratory of Chemical Genomics,
School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen University
Town, Xili, Shenzhen 518055, China
| | - Gui-Juan Cheng
- Laboratory of Chemical Genomics,
School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen University
Town, Xili, Shenzhen 518055, China
| | - Xinhao Zhang
- Laboratory of Chemical Genomics,
School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen University
Town, Xili, Shenzhen 518055, China
| | - Chi-Sing Lee
- Laboratory of Chemical Genomics,
School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen University
Town, Xili, Shenzhen 518055, China
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44
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Yeoman JTS, Mak VW, Reisman SE. A Unified Strategy to ent-Kauranoid Natural Products: Total Syntheses of (−)-Trichorabdal A and (−)-Longikaurin E. J Am Chem Soc 2013; 135:11764-7. [DOI: 10.1021/ja406599a] [Citation(s) in RCA: 100] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- John T. S. Yeoman
- The Warren and Katharine Schlinger Laboratory for Chemistry
and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California
91125, United States
| | - Victor W. Mak
- The Warren and Katharine Schlinger Laboratory for Chemistry
and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California
91125, United States
| | - Sarah E. Reisman
- The Warren and Katharine Schlinger Laboratory for Chemistry
and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California
91125, United States
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45
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Affiliation(s)
- J. S. Yadav
- Division of Natural Product Chemistry and Laboratory of X-ray Crystallography, CSIR-Indian Institute of Chemical Technology, Hyderabad-500 007, India
| | - Rajendar Goreti
- Division of Natural Product Chemistry and Laboratory of X-ray Crystallography, CSIR-Indian Institute of Chemical Technology, Hyderabad-500 007, India
| | - Srihari Pabbaraja
- Division of Natural Product Chemistry and Laboratory of X-ray Crystallography, CSIR-Indian Institute of Chemical Technology, Hyderabad-500 007, India
| | - B. Sridhar
- Division of Natural Product Chemistry and Laboratory of X-ray Crystallography, CSIR-Indian Institute of Chemical Technology, Hyderabad-500 007, India
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46
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Lu Z, Li Y, Deng J, Li A. Total synthesis of the Daphniphyllum alkaloid daphenylline. Nat Chem 2013; 5:679-84. [DOI: 10.1038/nchem.1694] [Citation(s) in RCA: 202] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2012] [Accepted: 05/03/2013] [Indexed: 02/08/2023]
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Zhu L, Han Y, Du G, Lee CS. A Bifunctional Lewis Acid Induced Cascade Cyclization to the Tricyclic Core of ent-Kaurenoids and Its Application to the Formal Synthesis of (±)-Platensimycin. Org Lett 2013; 15:524-7. [DOI: 10.1021/ol3033412] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Lizhi Zhu
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen University Town, Xili, Shenzhen 518055, China
| | - Yejian Han
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen University Town, Xili, Shenzhen 518055, China
| | - Guangyan Du
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen University Town, Xili, Shenzhen 518055, China
| | - Chi-Sing Lee
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen University Town, Xili, Shenzhen 518055, China
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Nicolaou KC, Hale CRH, Nilewski C, Ioannidou HA. Constructing molecular complexity and diversity: total synthesis of natural products of biological and medicinal importance. Chem Soc Rev 2012; 41:5185-238. [PMID: 22743704 PMCID: PMC3426871 DOI: 10.1039/c2cs35116a] [Citation(s) in RCA: 159] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The advent of organic synthesis and the understanding of the molecule as they occurred in the nineteenth century and were refined in the twentieth century constitute two of the most profound scientific developments of all time. These discoveries set in motion a revolution that shaped the landscape of the molecular sciences and changed the world. Organic synthesis played a major role in this revolution through its ability to construct the molecules of the living world and others like them whose primary element is carbon. Although the early beginnings of organic synthesis came about serendipitously, organic chemists quickly recognized its potential and moved decisively to advance and exploit it in myriad ways for the benefit of mankind. Indeed, from the early days of the synthesis of urea and the construction of the first carbon-carbon bond, the art of organic synthesis improved to impressively high levels of sophistication. Through its practice, today chemists can synthesize organic molecules--natural and designed--of all types of structural motifs and for all intents and purposes. The endeavor of constructing natural products--the organic molecules of nature--is justly called both a creative art and an exact science. Often called simply total synthesis, the replication of nature's molecules in the laboratory reflects and symbolizes the state of the art of synthesis in general. In the last few decades a surge in total synthesis endeavors around the world led to a remarkable collection of achievements that covers a wide ranging landscape of molecular complexity and diversity. In this article, we present highlights of some of our contributions in the field of total synthesis of natural products of biological and medicinal importance. For perspective, we also provide a listing of selected examples of additional natural products synthesized in other laboratories around the world over the last few years.
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Affiliation(s)
- K C Nicolaou
- Department of Chemistry and Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, USA
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Abstract
AbstractSecondary metabolites obtained from Actinomycetales provide a potential source of many novel compounds with antibacterial, antitumour, antifungal, antiviral, antiparasitic and other properties. The majority of these compounds are widely used as medicines for combating multidrug-resistant Gram-positive and Gram-negative bacterial strains. Members of the genus Streptomyces are profile producers of previously-known secondary metabolites. Actinomycetes have been isolated from terrestrial soils, from the rhizospheres of plant roots, and recently from marine sediments. This review demonstrates the diversity of secondary metabolites produced by actinomycete strains with respect to their chemical structure, biological activity and origin. On the basis of this diversity, this review concludes that the discovery of new bioactive compounds will continue to pose a great challenge for scientists.
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Hasegawa Y, Gridnev ID, Ikariya T. Mechanistic Consideration of Asymmetric C–N and C–C Bond Formations with Bifunctional Chiral Ir and Ru Catalysts. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2012. [DOI: 10.1246/bcsj.20110307] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yasuharu Hasegawa
- Department of Applied Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology
| | - Ilya D. Gridnev
- Department of Applied Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology
| | - Takao Ikariya
- Department of Applied Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology
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