1
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Dong Y, Liu J, Gao X, Pan T, Mao B, Yu S, Wu Y, Zhang C, Guo H. Pd-catalyzed cascade cyclization of allenylethylene carbonates and indandiones: Synthesis of tetracyclic dihydrocyclopentaindenofuranone derivatives. CHINESE CHEM LETT 2023. [DOI: 10.1016/j.cclet.2023.108297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
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2
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Lin X, Huang Y, Min L, Li CC. Synthesis of Spirotricyclic Core of Bonnadiene. Org Lett 2023; 25:1156-1160. [PMID: 36757147 DOI: 10.1021/acs.orglett.3c00142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
We herein describe a new approach for the efficient synthesis of the tricyclic core of diterpene bonnadiene. The synthetically challenging and unusual [6-7-5] spirotricyclic skeleton including the all-carbon quaternary stereocenter, was installed diastereoselectively via a type II [5 + 2] cycloaddition, followed by a unique vinylogous semipinacol rearrangement. The described chemistry demonstrates the feasibility of making the [6-7-5] spirotricyclic skeleton of the final product from the strained bridged [7-8-5] ring system.
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Affiliation(s)
- Xiaohong Lin
- Shenzhen Grubbs Institute, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalytic Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Yu Huang
- Shenzhen Grubbs Institute, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalytic Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Long Min
- Shenzhen Grubbs Institute, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalytic Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Chuang-Chuang Li
- Shenzhen Grubbs Institute, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalytic Chemistry, Southern University of Science and Technology, Shenzhen 518055, China.,Shenzhen Bay Laboratory, Shenzhen 518132, China
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3
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Alves ALV, da Silva LS, Faleiros CA, Silva VAO, Reis RM. The Role of Ingenane Diterpenes in Cancer Therapy: From Bioactive Secondary Compounds to Small Molecules. Nat Prod Commun 2022. [DOI: 10.1177/1934578x221105691] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Diterpenes are a class of critical taxonomic markers of the Euphorbiaceae family, representing small compounds (eg, molecules) with a wide range of biological activities and multi-target therapeutic potential. Diterpenes can exert different activities, including antitumor and multi-drug resistance-reversing activities, and antiviral, immunomodulatory, and anti-inflammatory effects, mainly due to their great structural diversity. In particular, one polycyclic skeleton has been highlighted: ingenane. Besides this natural diterpene, promising polycyclic skeletons may be submitted to chemical modification—by in silico approaches, chemical reactions, or biotransformation—putatively providing more active analogs (eg, ingenol derivatives), which are currently under pre-clinical investigation. This review outlines the current mechanisms of action and potential therapeutic implications of ingenol diterpenes as small cancer molecules.
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Affiliation(s)
- Ana Laura V. Alves
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, Brazil
| | - Luciane S. da Silva
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, Brazil
| | - Camila A. Faleiros
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, Brazil
| | - Viviane A. O. Silva
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, Brazil
| | - Rui M. Reis
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, Brazil
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B’s - PT Government Associate Laboratory, Braga, Portugal
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4
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Zhao C, Khan S, Khan I, Shah BH, Zhang YJ. Pd‐Catalyzed Asymmetric Allylic Cycloaddition of Vinylethylene Carbonates with Nitroalkenes: A Route to Tetrahydrofurans bearing Vicinal Tetrasubstituted Stereocenters. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200313] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Can Zhao
- Shanghai Jiao Tong University School of chemistry and Chemical Engineering CHINA
| | - Sardaraz Khan
- Shanghai Jiao Tong University School of chemistry and Chemical Engineering CHINA
| | - Ijaz Khan
- Shanghai Jiao Tong University School of chemistry and Chemical Engineering CHINA
| | - Babar Hussain Shah
- Shanghai Jiao Tong University School of chemistry and Chemical Engineering CHINA
| | - Yong Jian Zhang
- Shanghai Jiao Tong University School of Chemistry and Chemical Engineering 800 Dongchuan Road 200240 Shanghai CHINA
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5
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Wang YQ, Xu K, Min L, Li CC. Asymmetric Total Syntheses of Hypoestin A, Albolic Acid, and Ceroplastol II. J Am Chem Soc 2022; 144:10162-10167. [PMID: 35657330 DOI: 10.1021/jacs.2c04633] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The first asymmetric total synthesis of bioactive diterpenoid hypoestin A with an unprecedented [5-8-5-3] tetracyclic skeleton is accomplished in 15 steps from commercially available (R)-limonene. Furthermore, the second asymmetric total syntheses of sesterterpenoids albolic acid and ceroplastol II in 21 steps are also reported. The synthetically challenging and highly functionalized [X-8-5] (X = 5 or 7) tricarbocyclic ring systems found in hypoestin A, albolic acid, ceroplastol II, and schindilactone A, as well as other natural products, are efficiently and directly constructed via a unique intramolecular Pauson-Khand reaction of an allene-yne. This work represents the first reported use of the Pauson-Khand reaction to access synthetically challenging eight-membered-ring systems in natural product synthesis.
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Affiliation(s)
- Yong-Qiang Wang
- Shenzhen Grubbs Institute, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Kunhua Xu
- Shenzhen Grubbs Institute, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Long Min
- Shenzhen Grubbs Institute, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Chuang-Chuang Li
- Shenzhen Grubbs Institute, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
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6
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Liu Z, Ding Z, Chen K, Xu M, Yu T, Tong G, Zhang H, Li P. Balancing skeleton and functional groups in total syntheses of complex natural products: a case study of tigliane, daphnane and ingenane diterpenoids. Nat Prod Rep 2021; 38:1589-1617. [PMID: 33508045 DOI: 10.1039/d0np00086h] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Total synthesis of natural products has greatly contributed to natural product research, organic synthesis and drug discovery and development. However, in most cases, the efficiency of total synthesis is far from sufficient for direct practical industrial application. Thus, designing a concise and efficient synthetic route with balanced efforts between building the complex skeleton and introducing functional groups is highly desirable. In this critical review, we first present an introduction of this issue and a philosophical framework that cover possible synthetic approaches. Next, we have chosen the biogenetically closely related, biologically important and synthetically extremely challenging natural products, tiglianes, daphnanes and ingenanes as the particular case for the discussion, since in the past 40 years many synthetic approaches have been reported. The successes and pitfalls included therefore serve as the basis to draw some conclusions that may inspire future development in this area.
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Affiliation(s)
- Zhi Liu
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an 710049, P. R. China.
| | - Zhengwei Ding
- Department of Medicinal Chemistry, School of Pharmacy, Xi'an Jiaotong University, Xi'an, 710061, China.
| | - Kai Chen
- Department of Medicinal Chemistry, School of Pharmacy, Xi'an Jiaotong University, Xi'an, 710061, China.
| | - Ming Xu
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an 710049, P. R. China.
| | - Tao Yu
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an 710049, P. R. China.
| | - Guanghu Tong
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, LaJolla, California 92037, USA
| | - Hailong Zhang
- Department of Medicinal Chemistry, School of Pharmacy, Xi'an Jiaotong University, Xi'an, 710061, China.
| | - Pengfei Li
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an 710049, P. R. China. and State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China and Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an, 710049, China
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7
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Zhou F, Zhu L, Pan BW, Shi Y, Liu YL, Zhou J. Catalytic enantioselective construction of vicinal quaternary carbon stereocenters. Chem Sci 2020; 11:9341-9365. [PMID: 34094201 PMCID: PMC8162142 DOI: 10.1039/d0sc03249b] [Citation(s) in RCA: 83] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
This review summarizes the advances in the catalytic enantioselective construction of vicinal quaternary carbon stereocenters, introduces major synthetic strategies and discusses their advantages and limitations, highlights the application of known protocols in the total synthesis of natural products, and outlines the synthetic opportunities. This review summarizes the advances in catalytic enantioselective construction of vicinal quaternary carbon stereocenters, introduces major synthetic strategies and discusses their advantages and limitations, and outlines the synthetic opportunities.![]()
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Affiliation(s)
- Feng Zhou
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, East China Normal University Shanghai 200062 P. R. China
| | - Lei Zhu
- School of Chemistry and Materials Science, Hubei Engineering University Hubei 432000 P. R. China
| | - Bo-Wen Pan
- School of Pharmaceutical, Guizhou University of Traditional Chinese Medicine Guiyang 550002 P. R. China
| | - Yang Shi
- School of Pharmaceutical, Guizhou University of Traditional Chinese Medicine Guiyang 550002 P. R. China
| | - Yun-Lin Liu
- School of Chemistry and Chemical Engineering, Guangzhou University Guangzhou 510006 P. R. China
| | - Jian Zhou
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, East China Normal University Shanghai 200062 P. R. China .,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences Shanghai 200032 P. R. China
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8
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Bhat BA, Rashid S, Sengupta S, Mehta G. Recent Advances in Total Synthesis of Bioactive Furo[3,2‐
b
]furanone Natural Products. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.201900714] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Bilal A. Bhat
- CSIR-Medicinal Chemistry DivisionIndian Institute of Integrative Medicine Sanatnagar-Srinagar 190005 India
- Academy of Scientific and Innovative Research India
| | - Showkat Rashid
- CSIR-Medicinal Chemistry DivisionIndian Institute of Integrative Medicine Sanatnagar-Srinagar 190005 India
- Academy of Scientific and Innovative Research India
| | | | - Goverdhan Mehta
- School of ChemistryUniversity of Hyderabad Hyderabad 500046 India
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9
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An overview of microtubule targeting agents for cancer therapy. Arh Hig Rada Toksikol 2019; 70:160-172. [DOI: 10.2478/aiht-2019-70-3258] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2019] [Accepted: 09/01/2019] [Indexed: 12/27/2022] Open
Abstract
Abstract
The entire world is looking for effective cancer therapies whose benefits would outweigh their toxicity. One way to reduce resistance to chemotherapy and its adverse effects is the so called targeted therapy, which targets specific molecules (“molecular targets”) that play a critical role in cancer growth, progression, and metastasis. One such specific target are microtubules. In this review we address the current knowledge about microtubule-targeting agents or drugs (MTAs/MTDs) used in cancer therapy from their synthesis to toxicities. Synthetic and natural MTAs exhibit antitumor activity, and preclinical and clinical studies have shown that their anticancer effectiveness is higher than that of traditional drug therapies. Furthermore, MTAs involve a lower risk of adverse effects such as neurotoxicity and haemotoxicity. Several new generation MTAs are currently being evaluated for clinical use. This review brings updated information on the benefits of MTAs, therapeutic approaches, advantages, and challenges in their research.
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10
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Rubaiy HN. Treasure troves of pharmacological tools to study transient receptor potential canonical 1/4/5 channels. Br J Pharmacol 2019; 176:832-846. [PMID: 30656647 PMCID: PMC6433652 DOI: 10.1111/bph.14578] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 11/25/2018] [Accepted: 12/18/2018] [Indexed: 12/13/2022] Open
Abstract
Canonical or classical transient receptor potential 4 and 5 proteins (TRPC4 and TRPC5) assemble as homomers or heteromerize with TRPC1 protein to form functional nonselective cationic channels with high calcium permeability. These channel complexes, TRPC1/4/5, are widely expressed in nervous and cardiovascular systems, also in other human tissues and cell types. It is debatable that TRPC1 protein is able to form a functional ion channel on its own. A recent explosion of molecular information about TRPC1/4/5 has emerged including knowledge of their distribution, function, and regulation suggesting these three members of the TRPC subfamily of TRP channels play crucial roles in human physiology and pathology. Therefore, these ion channels represent potential drug targets for cancer, epilepsy, anxiety, pain, and cardiac remodelling. In recent years, a number of highly selective small-molecule modulators of TRPC1/4/5 channels have been identified as being potent with improved pharmacological properties. This review will focus on recent remarkable small-molecule agonists: (-)-englerin A and tonantzitlolone and antagonists: Pico145 and HC7090, of TPRC1/4/5 channels. In addition, this work highlights other recently identified modulators of these channels such as the benzothiadiazine derivative, riluzole, ML204, clemizole, and AC1903. Together, these treasure troves of agonists and antagonists of TRPC1/4/5 channels provide valuable hints to comprehend the functional importance of these ion channels in native cells and in vivo animal models. Importantly, human diseases and disorders mediated by these proteins can be studied using these compounds to perhaps initiate drug discovery efforts to develop novel therapeutic agents.
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Affiliation(s)
- Hussein N. Rubaiy
- Centre for Atherothrombosis and Metabolic Disease, Hull York Medical SchoolUniversity of HullHullUK
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11
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Rubaiy HN, Ludlow MJ, Siems K, Norman K, Foster R, Wolf D, Beutler JA, Beech DJ. Tonantzitlolone is a nanomolar potency activator of transient receptor potential canonical 1/4/5 channels. Br J Pharmacol 2018; 175:3361-3368. [PMID: 29859013 DOI: 10.1111/bph.14379] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Accepted: 05/24/2018] [Indexed: 01/16/2023] Open
Abstract
BACKGROUND AND PURPOSE The diterpene ester tonantzitlolone (TZL) is a natural product, which displays cytotoxicity towards certain types of cancer cell such as renal cell carcinoma cells. The effect is similar to that of (-)-englerin A, and so, although it is chemically distinct, we investigated whether TZL also targets transient receptor potential canonical (TRPC) channels of the 1, 4 and 5 type (TRPC1/4/5 channels). EXPERIMENTAL APPROACH The effects of TZL on renal cell carcinoma A498 cells natively expressing TRPC1 and TRPC4, modified HEK293 cells overexpressing TRPC4, TRPC5, TRPC4-TRPC1 or TRPC5-TRPC1 concatemer, TRPC3 or TRPM2, or CHO cells overexpressing TRPV4 were studied by determining changes in intracellular Ca2+ , or whole-cell or excised membrane patch-clamp electrophysiology. KEY RESULTS TZL induced an elevation of intracellular Ca2+ in A498 cells, similar to that evoked by englerin A. TZL activated overexpressed channels with EC50 values of 123 nM (TRPC4), 83 nM (TRPC5), 140 nM (TRPC4-TRPC1) and 61 nM (TRPC5-TRPC1). These effects of TZL were reversible on wash-out and potently inhibited by the TRPC1/4/5 inhibitor Pico145. TZL activated TRPC5 channels when bath-applied to excised outside-out but not inside-out patches. TZL failed to activate endogenous store-operated Ca2+ entry or overexpressed TRPC3, TRPV4 or TRPM2 channels in HEK 293 cells. CONCLUSIONS AND IMPLICATIONS TZL is a novel potent agonist for TRPC1/4/5 channels, which should be useful for testing the functionality of this type of ion channel and understanding how TRPC1/4/5 agonists achieve selective cytotoxicity against certain types of cancer cell.
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Affiliation(s)
| | | | | | | | | | | | - John A Beutler
- Molecular Targets Program, Center for Cancer Research, National Cancer Institute, Frederick, MD, USA
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12
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Brill ZG, Condakes ML, Ting CP, Maimone TJ. Navigating the Chiral Pool in the Total Synthesis of Complex Terpene Natural Products. Chem Rev 2017; 117:11753-11795. [PMID: 28293944 PMCID: PMC5638449 DOI: 10.1021/acs.chemrev.6b00834] [Citation(s) in RCA: 186] [Impact Index Per Article: 26.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The pool of abundant chiral terpene building blocks (i.e., "chiral pool terpenes") has long served as a starting point for the chemical synthesis of complex natural products, including many terpenes themselves. As inexpensive and versatile starting materials, such compounds continue to influence modern synthetic chemistry. This review highlights 21st century terpene total syntheses which themselves use small, terpene-derived materials as building blocks. An outlook to the future of research in this area is highlighted as well.
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Affiliation(s)
- Zachary G. Brill
- Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720
| | - Matthew L. Condakes
- Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720
| | - Chi P. Ting
- Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720
| | - Thomas J. Maimone
- Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720
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13
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Kärkäs M, Porco JA, Stephenson CRJ. Photochemical Approaches to Complex Chemotypes: Applications in Natural Product Synthesis. Chem Rev 2016; 116:9683-747. [PMID: 27120289 PMCID: PMC5025835 DOI: 10.1021/acs.chemrev.5b00760] [Citation(s) in RCA: 671] [Impact Index Per Article: 83.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2015] [Indexed: 01/29/2023]
Abstract
The use of photochemical transformations is a powerful strategy that allows for the formation of a high degree of molecular complexity from relatively simple building blocks in a single step. A central feature of all light-promoted transformations is the involvement of electronically excited states, generated upon absorption of photons. This produces transient reactive intermediates and significantly alters the reactivity of a chemical compound. The input of energy provided by light thus offers a means to produce strained and unique target compounds that cannot be assembled using thermal protocols. This review aims at highlighting photochemical transformations as a tool for rapidly accessing structurally and stereochemically diverse scaffolds. Synthetic designs based on photochemical transformations have the potential to afford complex polycyclic carbon skeletons with impressive efficiency, which are of high value in total synthesis.
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Affiliation(s)
- Markus
D. Kärkäs
- Department
of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States
| | - John A. Porco
- Department
of Chemistry, Center for Molecular Discovery (BU-CMD), Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States
| | - Corey R. J. Stephenson
- Department
of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States
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14
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Busch T, Dräger G, Kunst E, Benson H, Sasse F, Siems K, Kirschning A. Synthesis and antiproliferative activity of new tonantzitlolone-derived diterpene derivatives. Org Biomol Chem 2016; 14:9040-5. [PMID: 27604289 DOI: 10.1039/c6ob01697a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The synthesis of the diterpene (+)-tonantzitlolone A and a series of derivatives is reported. The study includes the determination of their antiproliferative activities against selected cancer cell lines.
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Affiliation(s)
- Torsten Busch
- Institut für Organische Chemie and Biomolekulares Wirkstoffzentrum (BMWZ), Leibniz Universität Hannover, Schneiderberg 1b, 30167 Hannover, Germany.
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15
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Newman DJ. Developing natural product drugs: Supply problems and how they have been overcome. Pharmacol Ther 2016; 162:1-9. [DOI: 10.1016/j.pharmthera.2015.12.002] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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16
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The natural diterpene tonantzitlolone A and its synthetic enantiomer inhibit cell proliferation and kinesin-5 function. Eur J Med Chem 2016; 112:164-170. [DOI: 10.1016/j.ejmech.2016.02.022] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Revised: 02/05/2016] [Accepted: 02/07/2016] [Indexed: 01/05/2023]
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17
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Büschleb M, Dorich S, Hanessian S, Tao D, Schenthal KB, Overman LE. Synthetic Strategies toward Natural Products Containing Contiguous Stereogenic Quaternary Carbon Atoms. Angew Chem Int Ed Engl 2016; 55:4156-86. [PMID: 26836448 PMCID: PMC4865016 DOI: 10.1002/anie.201507549] [Citation(s) in RCA: 251] [Impact Index Per Article: 31.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Indexed: 11/06/2022]
Abstract
Strategies for the total synthesis of complex natural products that contain two or more contiguous stereogenic quaternary carbon atoms in their intricate structures are reviewed with 12 representative examples. Emphasis has been put on methods to create quaternary carbon stereocenters, including syntheses of the same natural product by different groups, thereby showcasing the diversity of thought and individual creativity. A compendium of selected natural products containing two or more contiguous stereogenic quaternary carbon atoms and key reactions in their total or partial syntheses is provided in the Supporting Information.
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Affiliation(s)
- Martin Büschleb
- Department of Chemistry, Université de Montréal, Station Centre-Ville, C. P. 6128, Montréal, Qc, H3C 3J7, Canada
| | - Stéphane Dorich
- Department of Chemistry, Université de Montréal, Station Centre-Ville, C. P. 6128, Montréal, Qc, H3C 3J7, Canada
| | - Stephen Hanessian
- Department of Chemistry, Université de Montréal, Station Centre-Ville, C. P. 6128, Montréal, Qc, H3C 3J7, Canada.
| | - Daniel Tao
- Department of Chemistry, University of California, 1102 Natural Sciences II, Irvine, CA, 92697-2025, USA
| | - Kyle B Schenthal
- Department of Chemistry, University of California, 1102 Natural Sciences II, Irvine, CA, 92697-2025, USA
| | - Larry E Overman
- Department of Chemistry, University of California, 1102 Natural Sciences II, Irvine, CA, 92697-2025, USA
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18
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Büschleb M, Dorich S, Hanessian S, Tao D, Schenthal KB, Overman LE. Strategien für die Synthese von Naturstoffen mit benachbarten stereogenen quartären Kohlenstoffatomen. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201507549] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Martin Büschleb
- Department of Chemistry; Université de Montréal, Station Centre-Ville; C. P. 6128 Montréal Qc H3C 3J7 Kanada
| | - Stéphane Dorich
- Department of Chemistry; Université de Montréal, Station Centre-Ville; C. P. 6128 Montréal Qc H3C 3J7 Kanada
| | - Stephen Hanessian
- Department of Chemistry; Université de Montréal, Station Centre-Ville; C. P. 6128 Montréal Qc H3C 3J7 Kanada
| | - Daniel Tao
- Department of Chemistry; University of California; 1102 Natural Sciences II Irvine CA 92697-2025 USA
| | - Kyle B. Schenthal
- Department of Chemistry; University of California; 1102 Natural Sciences II Irvine CA 92697-2025 USA
| | - Larry E. Overman
- Department of Chemistry; University of California; 1102 Natural Sciences II Irvine CA 92697-2025 USA
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19
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Krainz T, Chow S, Korica N, Bernhardt PV, Boyle GM, Parsons PG, Davies HML, Williams CM. Rhodium-Catalyzed [4+3] Cycloaddition to Furans: Direct Access to Functionalized Bicyclo[5.3.0]decane Derivatives. European J Org Chem 2015. [DOI: 10.1002/ejoc.201501271] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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20
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Luo Y, Li BZ, Liu D, Zhang L, Chen Y, Jia B, Zeng BX, Zhao H, Yuan YJ. Engineered biosynthesis of natural products in heterologous hosts. Chem Soc Rev 2015; 44:5265-90. [PMID: 25960127 PMCID: PMC4510016 DOI: 10.1039/c5cs00025d] [Citation(s) in RCA: 126] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Natural products produced by microorganisms and plants are a major resource of antibacterial and anticancer drugs as well as industrially useful compounds. However, the native producers often suffer from low productivity and titers. Here we summarize the recent applications of heterologous biosynthesis for the production of several important classes of natural products such as terpenoids, flavonoids, alkaloids, and polyketides. In addition, we will discuss the new tools and strategies at multi-scale levels including gene, pathway, genome and community levels for highly efficient heterologous biosynthesis of natural products.
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Affiliation(s)
- Yunzi Luo
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin, 300072, P. R. China.
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Li JL, Sahoo B, Daniliuc CG, Glorius F. Konjugierte Umpolung von β,β-disubstituierten Enalen durch duale Katalyse mit N-heterocyclischen Carbenen und Brønsted-Säuren: einfacher Aufbau benachbarter, quartärer Stereozentren. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201405178] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Li JL, Sahoo B, Daniliuc CG, Glorius F. Conjugate Umpolung of β,β-Disubstituted Enals by Dual Catalysis with an N-Heterocyclic Carbene and a Brønsted Acid: Facile Construction of Contiguous Quaternary Stereocenters. Angew Chem Int Ed Engl 2014; 53:10515-9. [DOI: 10.1002/anie.201405178] [Citation(s) in RCA: 117] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2014] [Indexed: 11/09/2022]
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Vasas A, Hohmann J. Euphorbia Diterpenes: Isolation, Structure, Biological Activity, and Synthesis (2008–2012). Chem Rev 2014; 114:8579-612. [DOI: 10.1021/cr400541j] [Citation(s) in RCA: 310] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Andrea Vasas
- Department of Pharmacognosy, University of Szeged, Eötvös u. 6, H-6720 Szeged, Hungary
| | - Judit Hohmann
- Department of Pharmacognosy, University of Szeged, Eötvös u. 6, H-6720 Szeged, Hungary
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Munro KR, Male L, Spencer N, Grainger RS. Diastereotopic group selectivity and chemoselectivity of alkylidene carbene reactions on 8-oxabicyclo[3.2.1]- oct-6-ene ring systems. Org Biomol Chem 2013; 11:6856-62. [PMID: 24175334 DOI: 10.1039/c3ob41390j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
α-Hydroxyalkylidene carbenes, generated from thermolysis of α,β-epoxy-N-aziridinylimines, undergo diastereotopic group selective 1,5 C–H insertion reactions on 2,4-dimethyl-8-oxabicyclo[3.2.1]oct-6-ene ring systems. Protection of a tertiary alcohol at C-3 of the bridged oxabicycle as a trimethylsilyl ether reverses the sense of diastereoselectivity. 1,5 C–H insertion into a methine adjacent to an OBn group, 1,5 O–R insertion into a tertiary alcohol (R = H) or silylether (R = TMS) at C-3 to form spirocyclic dihydrofurans, 1,2-rearrangement to an alkyne and fragmentation to a ketone are competing major pathways for 2-benzyloxy-substituted 8-oxabicyclo[3.2.1]oct-6-ene systems. Dihydrofuran formation is shown to be a result of substitution on the oxabicyclic ring system through comparison with other methods of alkylidene carbene formation.
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Vasas A, Rédei D, Csupor D, Molnár J, Hohmann J. Diterpenes from European EuphorbiaSpecies Serving as Prototypes for Natural-Product-Based Drug Discovery. European J Org Chem 2012. [DOI: 10.1002/ejoc.201201411] [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]
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Berrué F, McCulloch MWB, Kerr RG. Marine diterpene glycosides. Bioorg Med Chem 2011; 19:6702-19. [PMID: 21783368 DOI: 10.1016/j.bmc.2011.06.083] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2011] [Revised: 06/16/2011] [Accepted: 06/28/2011] [Indexed: 10/18/2022]
Abstract
Marine diterpene glycosides (MDGs) respresent a small but highly significant group of the much larger class of marine diterpenes. The three well-studied examples of MDGs are eleutherobins, pseudopterosins and fuscosides, all of which exhibit extremely promising biological activity. The eleutherobins are potent anti-mitotic agents, and the pseudopterosins and fuscosides are potent anti-inflammatory agents. This review discusses the structures and biological activities of these compounds, as well as their biosynthesis and synthesis.
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Affiliation(s)
- Fabrice Berrué
- Department of Chemistry, University of Prince Edward Island, Charlottetown, PEI, Canada
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Abstract
Microtubules are dynamic filamentous cytoskeletal proteins composed of tubulin and are an important therapeutic target in tumour cells. Agents that bind to microtubules have been part of the pharmacopoeia of anticancer therapy for decades and until the advent of targeted therapy, microtubules were the only alternative to DNA as a therapeutic target in cancer. The screening of a range of botanical species and marine organisms has yielded promising new antitubulin agents with novel properties. In the current search for novel microtubule-binding agents, enhanced tumour specificity, reduced neurotoxicity and insensitivity to chemoresistance mechanisms are the three main objectives.
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Affiliation(s)
- Charles Dumontet
- INSERM 590, Faculté Rockefeller, 8 Avenue Rockefeller, 69008 Lyon, France and Université Lyon 1, ISPB, Lyon, F-69003, France.
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Cramer B, Takahata Y. QSAR of Clerodane Diterpenoids with Cytotoxic and Antitumoral Activity Against V-79 Cells. ACTA ACUST UNITED AC 2009. [DOI: 10.1002/qsar.200960038] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Frankie Mak S, Chiang GC, Davidson JE, Davies JE, Ayscough A, Pain G, Burton JW, Holmes AB. Synthesis of simplified analogues of eleutherobin via a Claisen rearrangement/RCM strategy. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.tetasy.2009.03.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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van Beek TA, Montoro P. Chemical analysis and quality control of Ginkgo biloba leaves, extracts, and phytopharmaceuticals. J Chromatogr A 2009; 1216:2002-32. [DOI: 10.1016/j.chroma.2009.01.013] [Citation(s) in RCA: 320] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2008] [Revised: 12/31/2008] [Accepted: 01/09/2009] [Indexed: 01/06/2023]
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Wang J, Ma A, Ma D. Organocatalytic Michael Addition of Aldehydes to γ-Keto-α,β-unsaturated Esters. An Efficient Entry to Versatile Chiral Building Blocks. Org Lett 2008; 10:5425-8. [DOI: 10.1021/ol802354u] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jing Wang
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Lu, Shanghai 200032, China
| | - Anqi Ma
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Lu, Shanghai 200032, China
| | - Dawei Ma
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Lu, Shanghai 200032, China
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Busch T, Schuster H, Kirschning A. Determination of the absolute configuration of the diterpene tonantzitlolone B. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2008.06.105] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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