1
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Vinaykumar A, Surender B, Rao BV. Chemoselective Nozaki-Hiyama-Takai-Kishi and Grignard reaction: short synthesis of some carbahexopyranoses. RSC Adv 2023; 13:22824-22830. [PMID: 37520087 PMCID: PMC10375257 DOI: 10.1039/d3ra03704e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 07/20/2023] [Indexed: 08/01/2023] Open
Abstract
A common, divergent, efficient, stereoselective and short approach for the total syntheses of some carbahexopyranoses namely, MK7607, (-)-gabosine A, (-)-conduritol E, (-)-conduritol F, 6a-carba-β-d-fructopyranose and other carbasugars using chemoselective Grignard or Nozaki-Hiyama-Takai-Kishi (NHTK) reactions and RCM. Herein, the Grignard and NHTK reactions are able to differentiate the reactivity difference between lactol or lactolacetate and aldehyde of 2 & 6 under given conditions to give the desired skeleton chemoselectivity.
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Affiliation(s)
- Allam Vinaykumar
- Fluoro-Agrochemicals, CSIR-Indian Institute of Chemical Technology Hyderabad India
| | - Banothu Surender
- Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology Hyderabad India
| | - Batchu Venkateswara Rao
- Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology Hyderabad India
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2
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Jia Y, Wang M, Wu F, Wang Y, Chen X. A Synthetic Approach to Several C7-Carbasugars via a Key Intramolecular Morita-Baylis-Hillman Reaction. J Org Chem 2022; 87:14636-14645. [PMID: 36223290 DOI: 10.1021/acs.joc.2c01992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A new synthetic strategy for C7-carbasugars is developed via an intramolecular Morita-Baylis-Hillman reaction, in which a substituted dial precursor prepared from d-mannose cyclizes smoothly in the presence of DMAP to afford polyhydroxylated cyclohex-1-enecarbaldehyde with good yield. By employment of the cyclization products as key intermediates, the first syntheses of carbasugar ester 1 and epicorepoxydon A, as well as practical syntheses of epoxydines B and C, (-)-MK7607, (-)-streptol, and (-)-gabosine E are achieved.
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Affiliation(s)
- Yuanliang Jia
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, PR China
| | - Maolin Wang
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, PR China
| | - Folei Wu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, PR China
| | - Yue Wang
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, PR China
| | - Xiaochuan Chen
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, PR China
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3
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Enantioselective Synthesis of a New Non-Natural Gabosine. Molecules 2021; 26:molecules26051423. [PMID: 33800731 PMCID: PMC7961443 DOI: 10.3390/molecules26051423] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 02/23/2021] [Accepted: 03/03/2021] [Indexed: 11/17/2022] Open
Abstract
The preparation of a new non-natural gabosine is reported, in which the chirality is transferred from the toluene’s biotransformed metabolite (1R,2S)-3-methylcyclohexa-3.5-diene-1,2-diol. Further chemical transformations to introduce additional functionality and chirality to the molecule were also accomplished.
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4
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Zang Y, Gong Y, Gong J, Liu J, Chen C, Gu L, Zhou Y, Wang J, Zhu H, Zhang Y. Fungal Polyketides with Three Distinctive Ring Skeletons from the Fungus Penicillium canescens Uncovered by OSMAC and Molecular Networking Strategies. J Org Chem 2020; 85:4973-4980. [DOI: 10.1021/acs.joc.0c00147] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Yi Zang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Yihua Gong
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Jiaojiao Gong
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Junjun Liu
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Chunmei Chen
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Lianghu Gu
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Yuan Zhou
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Jianping Wang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Hucheng Zhu
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Yonghui Zhang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
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5
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Yang X, Yuan P, Shui F, Zhou Y, Chen X. A divergent strategy to synthesize gabosines featuring a switchable two-way aldol cyclization. Org Biomol Chem 2019; 17:4061-4072. [PMID: 30951069 DOI: 10.1039/c9ob00469f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Gabosines and their natural analogues, belonging to C7 carbasugars, have attracted great attention in synthesis due to their rich structural variety and promising biological activities. A new diversity-oriented approach for the gabosine-type carbasugars based on a tunable regioselective aldol cyclization of flexible precursor 2 is explored. Two cyclization modes (A and B) of the precursor can be well controlled by switching promoters to selectively produce two resulting cyclohexa(e)nones 3 and 10, both of which are versatile intermediates for various C7 carbasugars. After the conversion of 3 to eight natural carbasugars, the utility of intermediate 10 is illustrated by the first synthesis of (-)-gabosine L, as well as the new synthesis of (-)-gabosine A, (-)-gabosine B, (-)-gabosine N and (-)-gabosine O. The chemical structure and the absolute configuration of (-)-gabosine L are confirmed by its total synthesis.
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Affiliation(s)
- Xing Yang
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, PR China.
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6
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Asymmetric total synthesis of (+)-gabosine C and (+)-4-epi-gabosine J using acetate migration and RCM reaction. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.04.048] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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7
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Yuan P, Liu X, Yang X, Zhang Y, Chen X. Total Syntheses of (+)-Gabosine P, (+)-Gabosine Q, (+)-Gabosine E, (-)-Gabosine G, (-)-Gabosine I, (-)-Gabosine K, (+)-Streptol, and (-)-Uvamalol A by a Diversity-Oriented Approach Featuring Tunable Deprotection Manipulation. J Org Chem 2017; 82:3692-3701. [PMID: 28276688 DOI: 10.1021/acs.joc.7b00181] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A new diversity-oriented approach to C7-cyclitols, which possess a broad spectrum of biological activities, is developed. The key polyoxygenated intermediates with different O-protecting groups were accessed by an intramolecular aldol-cyclization of a diketone derived from δ-d-gluconolactone. The versatile intermediates can be easily transformed into structurally different carbasugars based on control of deprotection manipulation. The utility of the robust approach is illustrated by the first syntheses of (+)-gabosines P and Q, as well as the syntheses of several other gabosines and related analogues viz. (+)-gabosine E, (-)-gabosine G, (-)-gabosine I, (-)-gabosine K, (+)-streptol, and (-)-uvamalol A. In addition, the absolute configuration of (-)-uvamalol A is assigned by its total synthesis.
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Affiliation(s)
- Po Yuan
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University , Chengdu 610064, PR China
| | - Xiaojing Liu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University , Chengdu 610064, PR China
| | - Xing Yang
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University , Chengdu 610064, PR China
| | - Yanli Zhang
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University , Chengdu 610064, PR China
| | - Xiaochuan Chen
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University , Chengdu 610064, PR China
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8
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9
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Mondal S, Sureshan KM. Carbasugar Synthesis via Vinylogous Ketal: Total Syntheses of (+)-MK7607, (-)-MK7607, (-)-Gabosine A, (-)-Epoxydine B, (-)-Epoxydine C, epi-(+)-Gabosine E and epi-(+)-MK7607. J Org Chem 2016; 81:11635-11645. [PMID: 27808513 DOI: 10.1021/acs.joc.6b01876] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Carbasugars, the carbocyclic analogues of sugars, constitute an important class of natural products with more than 140 members known and have attracted much attention due to their diverse biological activities like anticancer, antibacterial, herbicidal, and various enzyme inhibitory activities. As many carbohydrates are involved in various cellular signaling pathways, there is great interest in synthesis and biological exploration of carbasugars. Herein, we have developed a methodology to install an α,β-unsaturated aldehyde functionality on different inositols and derivatives by vinylogous elimination of the O-protecting group under mildly acidic condition. We have illustrated the versatility and utility of our methodology by the total syntheses of seven carbasugars viz. (-)-MK7607, (-)-gabosine A, (-)-epoxydine B, (-)-epoxydine C, (+)-MK7607, 1-epi-(+)-MK7607 and 1-epi-(+)-gabosine E.
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Affiliation(s)
- Soumik Mondal
- Indian Institute of Science Education and Research , Thiruvananthapuram, Kerala 695016, India
| | - Kana M Sureshan
- Indian Institute of Science Education and Research , Thiruvananthapuram, Kerala 695016, India
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10
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Wei J, Liu LL, Dong S, Li H, Tang D, Zhang Q, Xue QH, Gao JM. Gabosines P and Q, new carbasugars from Streptomyces sp. and their α-glucosidase inhibitory activity. Bioorg Med Chem Lett 2016; 26:4903-4906. [PMID: 27641469 DOI: 10.1016/j.bmcl.2016.09.021] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Revised: 08/20/2016] [Accepted: 09/07/2016] [Indexed: 11/25/2022]
Abstract
Two new polyoxygenated cyclohexenone 'ketocarbasugars', named gabosines P and Q (1 and 2), were isolated from the culture of the actinomycete Streptomycetes strain no. 8, along with two known cyclic dipeptides. The structures and absolute configurations of the new metabolites were determined by spectroscopic data (1D- and 2D-NMR, HR-ESI-MS, and IR), chemical transformation, and electronic circular dichroism (ECD). These compounds were evaluated for α-glucosidase inhibitory activity in vitro. Only compound 1 exhibited IC50 values of 9.07μM, with potency higher than that of the control acarbose. Molecular docking studies revealed the existence of hydrogen bonding and hydrophobic interaction between the enzyme and gabosine P. The results will be useful in designing new anti-diabetes control agents.
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Affiliation(s)
- Jing Wei
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A&F University, Yangling 712100, People's Republic of China
| | - Ling-Li Liu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A&F University, Yangling 712100, People's Republic of China
| | - Shuai Dong
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A&F University, Yangling 712100, People's Republic of China
| | - Hui Li
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A&F University, Yangling 712100, People's Republic of China
| | - Dan Tang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A&F University, Yangling 712100, People's Republic of China
| | - Qiang Zhang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A&F University, Yangling 712100, People's Republic of China
| | - Quan-Hong Xue
- College of Resource and Environment, Northwest A&F University, Yangling 712100, People's Republic of China
| | - Jin-Ming Gao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A&F University, Yangling 712100, People's Republic of China.
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11
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Fresneda MÁ, Alibés R, Bayón P, Figueredo M. Filling Some Blanks in a Divergent Approach to Gabosines: Enantioselective Synthesis of (-)-Epiepoxydon, (+)-Phyllostine, (-)-Gabosine D, and (-)-Gabosine E. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600492] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Ramon Alibés
- Departament de Química; Universitat Autònoma de Barcelona; 08193 Bellaterra Spain
| | - Pau Bayón
- Departament de Química; Universitat Autònoma de Barcelona; 08193 Bellaterra Spain
| | - Marta Figueredo
- Departament de Química; Universitat Autònoma de Barcelona; 08193 Bellaterra Spain
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12
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Du L, King J, Cichewicz RH. Chlorinated polyketide obtained from a Daldinia sp. treated with the epigenetic modifier suberoylanilide hydroxamic acid. JOURNAL OF NATURAL PRODUCTS 2014; 77:2454-8. [PMID: 25338315 PMCID: PMC4251535 DOI: 10.1021/np500522z] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Indexed: 05/20/2023]
Abstract
A new chlorinated pentacyclic polyketide, daldinone E (1), was purified from a Daldinia sp. fungal isolate treated with the epigenetic modifier suberoylanilide hydroxamic acid (SAHA). A biosynthetically related epoxide-containing daldinone analogue, 2, was also purified from the same fungus. The structures of both compounds were established by spectroscopic methods, and the absolute configurations were assigned by analysis of their NMR data (coupling constants and ROESY correlations) and DFT calculations of specific rotations and ECD spectra. During the course of these studies it was determined that metabolite 2 and the previously reported daldinone B shared the same spectroscopic data, leading to a revision of the reported structure. Both compounds 1 and 2 also exhibited DPPH radical scavenging activities with potency comparable to the positive control ascorbic acid.
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Affiliation(s)
- Lin Du
- Institute for Natural
Products Applications and Research Technologies,
Natural Products Discovery Group, and Department of Chemistry and Biochemistry, Stephenson Life Sciences Research Center, University
of Oklahoma, 101 Stephenson
Parkway, Norman, Oklahoma 73019-5251, United States
| | - Jarrod
B. King
- Institute for Natural
Products Applications and Research Technologies,
Natural Products Discovery Group, and Department of Chemistry and Biochemistry, Stephenson Life Sciences Research Center, University
of Oklahoma, 101 Stephenson
Parkway, Norman, Oklahoma 73019-5251, United States
| | - Robert H. Cichewicz
- Institute for Natural
Products Applications and Research Technologies,
Natural Products Discovery Group, and Department of Chemistry and Biochemistry, Stephenson Life Sciences Research Center, University
of Oklahoma, 101 Stephenson
Parkway, Norman, Oklahoma 73019-5251, United States
- E-mail: . Tel: 405-325-6969. Fax: 405-325-6111
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13
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Vidyasagar A, Sureshan KM. Total Synthesis and Glycosidase Inhibition Studies of (-)-Gabosine J and Its Derivatives. European J Org Chem 2014. [DOI: 10.1002/ejoc.201301782] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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14
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Meister AC, Sauter PF, Bräse S. A Stereoselective Approach to Functionalized Cyclohexenones. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300752] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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15
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Fresneda MÁ, Alibés R, Font J, Bayón P, Figueredo M. How a diversity-oriented approach has inspired a new hypothesis for the gabosine biosynthetic pathway. A new synthesis of (+)-gabosine C. Org Biomol Chem 2013; 11:6562-8. [PMID: 23982632 DOI: 10.1039/c3ob41183d] [Citation(s) in RCA: 8] [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 synthesis of (+)-gabosine C has been accomplished as part of a general diversity-oriented approach that also delivered the previously unknown (-)-4-epi-gabosine C. The identification of the unexpected intermediate (+)-8, together with the isolation of ketones 9 and 10 in previous investigations, prompted us to formulate a new hypothesis for the biosynthesis of gabosines, based on a keto-enol equilibrium cascade pathway starting from 2-epi-5-epi-valiolone, along which the necessary precursors for all the different types of gabosines are generated.
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16
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Mondal S, Prathap A, Sureshan KM. Vinylogy in Orthoester Hydrolysis: Total Syntheses of Cyclophellitol, Valienamine, Gabosine K, Valienone, Gabosine G, 1-epi-Streptol, Streptol, and Uvamalol A. J Org Chem 2013; 78:7690-700. [DOI: 10.1021/jo401272j] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Soumik Mondal
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Thiruvananthapuram, Kerala 695016, India
| | - Annamalai Prathap
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Thiruvananthapuram, Kerala 695016, India
| | - Kana M. Sureshan
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Thiruvananthapuram, Kerala 695016, India
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17
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Bayón P, Figueredo M. The gabosine and anhydrogabosine family of secondary metabolites. Chem Rev 2013; 113:4680-707. [PMID: 23597176 DOI: 10.1021/cr300150w] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Pau Bayón
- Departament de Química, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
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Fresneda MÁ, Alibés R, Font J, Bayón P, Figueredo M. Stereoselective synthesis and relative configuration assignment of gabosine J. J Org Chem 2012; 77:5030-5. [PMID: 22607108 DOI: 10.1021/jo300456q] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The first total synthesis of (+)-gabosine J and that of the epimer at C4 of its enantiomer have been accomplished through an enantioselective approach from a common intermediate 1. These syntheses have allowed us to establish the correct relative configuration of the natural metabolite, which was originally misassigned. This work, together with our former syntheses of other gabosines and related compounds, validates enone 1 as a general synthetic precursor for this kind of carbasugars.
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20
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Baylis–Hillman reaction based flexible strategy for the synthesis of gabosine I, gabosine G, epi-gabosine I and carba l-pentose. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2011.11.134] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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21
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22
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Labora M, Schapiro V, Pandolfi E. Concise chemoenzymatic synthesis of gabosine A, ent-epoformin and ent-epiepoformin. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.tetasy.2011.10.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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23
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Shing TK, Chen Y, Ng WL. Carbocyclization of d-glucose: syntheses of gabosine I and streptol. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.06.028] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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24
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Kumar V, Das P, Ghosal P, Shaw AK. Syntheses of (−)-gabosine A, (+)-4-epi-gabosine A, (−)-gabosine E, and (+)-4-epi-gabosine E. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.04.082] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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25
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Usami Y, Mizuki K. Stereostructure reassignment and determination of the absolute configuration of pericosine D(o) by a synthetic approach. JOURNAL OF NATURAL PRODUCTS 2011; 74:877-81. [PMID: 21391658 DOI: 10.1021/np100843j] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
A combination of chemical synthesis and NMR methods was used to reassign the structure of pericosine D(o) (8), a cytotoxic marine natural product produced by the fungus Periconia byssoides OUPS-N133 that was originally derived from the sea hare Aplysia kurodai. Chemical synthesis was used to prepare pericoisne D(o) (8) from a known chlorohydrin that was in turn derived from (-)-quinic acid. The absolute configuration of natural pericosine D(o) (8) was determined to be methyl (3R,4S,5S,6S)-6-chloro-3,4,5-trihydroxy-1-cyclohexene-1-carboxylate. HPLC analyses using a chiral-phase column indicated that pericosine D(o) (8) exists in an enantiomerically pure form in nature.
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Affiliation(s)
- Yoshihide Usami
- Laboratory of Pharmaceutical Organic Chemistry, Osaka University of Pharmaceutical Sciences, 4-20-1 Nasahara, Takatsuki, Osaka 569-1094, Japan.
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26
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Toribio G, Marjanet G, Alibés R, de March P, Font J, Bayón P, Figueredo M. Divergent Approach to Gabosines and Anhydrogabosines: Enantioselective Syntheses of (+)-Epiepoformin, (+)-EpoKformin, (+)-Gabosine A, and Gabosines B and F. European J Org Chem 2011. [DOI: 10.1002/ejoc.201001527] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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27
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Arthurs CL, Morris GA, Piacenti M, Pritchard RG, Stratford IJ, Tatic T, Whitehead RC, Williams KF, Wind NS. The synthesis of 2-oxyalkyl-cyclohex-2-enones, related to the bioactive natural products COTC and antheminone A, which possess anti-tumour properties. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.08.072] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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28
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Leermann T, Block O, Podeschwa MAL, Pfüller U, Altenbach HJ. De novo synthesis and lectin binding studies of unsaturated carba-pyranoses. Org Biomol Chem 2010; 8:3965-74. [PMID: 20589308 DOI: 10.1039/c003597a] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Starting from branched para-benzoquinones a practical and highly flexible route is described for the preparation of unsaturated carbapyranoses. The potential of the synthesized galactose analogues to act as competitive inhibitors in lectin-carbohydrate interactions is investigated by means of Surface Plasmon Resonance (SPR) Spectroscopy.
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Affiliation(s)
- Timo Leermann
- Bergische University Wuppertal, Gaussstrasse 20, 42097, Wuppertal, Germany.
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29
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Rao JP, Rao BV. A common strategy for the synthesis of (+)-gabosine N, (+)-gabosine O, and some carbapyranoses using a Nozaki–Hiyama–Kishi reaction and RCM. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.tetasy.2010.05.041] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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30
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Shing TKM, So KH, Kwok WS. Carbocyclization of carbohydrates: diastereoselective synthesis of (+)-gabosine F, (-)-gabosine O, and (+)-4-epi-gabosine O. Org Lett 2009; 11:5070-3. [PMID: 19803475 DOI: 10.1021/ol902071e] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Exploitation of silica gel/chloramine T mediated intramolecular nitrile oxide-alkene cycloaddition (INOC) of sugar-derived oximes to carbocycles furnished the first synthesis of gabosine F from l-arabinose in 12 steps with 23% overall yield, thereby confirming its absolute configuration. Similarly, efficient syntheses of gabosine O and 4-epi-gabosine O were accomplished from D-mannose in 9 and 11 steps with 41% and 38% overall yields, respectively, involving INOC, regioselective dehydration, and diastereoselective hydrogenation as the key steps.
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Affiliation(s)
- Tony K M Shing
- Department of Chemistry and Center of Novel Functional Molecules, The Chinese Univeristy of Hong Kong, Shatin, Hong Kong, China.
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31
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Stathakis CI, Athanatou MN, Gallos JK. Synthesis of ent-gabosine E from d-mannose by intramolecular nitrone–olefin cycloaddition. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.09.154] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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32
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Abstract
(+)-Gabosines A (12), D (4), and E (5), which share the same trihydroxycyclohexenone skeleton, were synthesized from enone 11 as the common intermediate. The key building block 11 was accessed by an intramolecular aldol cyclization of a diketone derived from D-glucose (8).
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Affiliation(s)
- Tony K M Shing
- Department of Chemistry and Center of Novel Functional Molecules, The Chinese University of Hong Kong, Shatin NT, Hong Kong, China.
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33
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Ghosh P, Cusick JR, Inghrim J, Williams LJ. Silyl-substituted spirodiepoxides: stereoselective formation and regioselective opening. Org Lett 2009; 11:4672-5. [PMID: 19810767 PMCID: PMC3047402 DOI: 10.1021/ol901948d] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A short synthesis of the natural product epi-citreodiol and the method developed to gain access to this target are described. Key advances focus on silyl substituted allenes. Upon exposure to dimethyldioxirane, spirodiepoxides form with high face selectivity and subsequently react at the silyl terminus.
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Affiliation(s)
| | | | - Jennifer Inghrim
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, New Brunswick, New Jersey 08903
| | - Lawrence J. Williams
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, New Brunswick, New Jersey 08903
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Sedmera P, Halada P, Pospísil S. New carbasugars from Streptomyces lincolnensis. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2009; 47:519-522. [PMID: 19224545 DOI: 10.1002/mrc.2408] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Two new carbasugars (9 and 10) were isolated from Streptomyces lincolnensis DSM 40355 along with streptol (valienol, 8), gabosine I (valienone, 14), and glucosylglycerate. The reported (1)H and (13)C assignments are based on 1D ((1)H, (13)C, 1D-TOCSY, homodecoupling) and 2D (gCOSY, J-resolved, TOCSY, ROESY, gHSQC, gHMBC) NMR techniques and electrospray ionization FT mass spectrometry (ESI FTMS).
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Affiliation(s)
- Petr Sedmera
- Institute of Microbiology, Academy of Sciences of the Czech Republic, Vídenská 1083, 142 20 Prague, Czech Republic.
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35
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Monrad RN, Fanefjord M, Hansen FG, Jensen NME, Madsen R. Synthesis of Gabosine A and N from Ribose by the Use of Ring-Closing Metathesis. European J Org Chem 2009. [DOI: 10.1002/ejoc.200800983] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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36
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Bayón P, Marjanet G, Toribio G, Alibés R, de March P, Figueredo M, Font J. An Efficient Protocol for the Enantioselective Preparation of a Key Polyfunctionalized Cyclohexane. New Access to (R)- and (S)-4-Hydroxy-2-cyclohexenone and (R)- and (S)-trans-Cyclohex-2-ene-1,4-diol. J Org Chem 2008; 73:3486-91. [DOI: 10.1021/jo800107h] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Pau Bayón
- Universitat Autònoma de Barcelona, Departament de Química, 08193 Bellaterra, Spain
| | - Georgina Marjanet
- Universitat Autònoma de Barcelona, Departament de Química, 08193 Bellaterra, Spain
| | - Gladis Toribio
- Universitat Autònoma de Barcelona, Departament de Química, 08193 Bellaterra, Spain
| | - Ramon Alibés
- Universitat Autònoma de Barcelona, Departament de Química, 08193 Bellaterra, Spain
| | - Pere de March
- Universitat Autònoma de Barcelona, Departament de Química, 08193 Bellaterra, Spain
| | - Marta Figueredo
- Universitat Autònoma de Barcelona, Departament de Química, 08193 Bellaterra, Spain
| | - Josep Font
- Universitat Autònoma de Barcelona, Departament de Química, 08193 Bellaterra, Spain
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37
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Synthetic efforts for stereo structure determination of cytotoxic marine natural product pericosines as metabolites of Periconia sp. from sea hare. Int J Mol Sci 2008; 9:401-421. [PMID: 19325758 PMCID: PMC2635666 DOI: 10.3390/ijms9030401] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2008] [Revised: 03/18/2008] [Accepted: 03/19/2008] [Indexed: 12/03/2022] Open
Abstract
Pericosines are unique C7 cyclohexenoid metabolites of Periconia byssoides OUPS-N133 fungus that was originally isolated from the sea hare, Aplysia kurodai. Pericosines show significant in vitro cytotoxicity against P388 lymphocytic leukemia cells. Pericosine A, in particular, shows the most potent activity and significant in vivo antitumor activity against P388 cells. Thus, pericosines are promising candidates for seed compounds of anticancer drugs. However, before the total syntheses of pericosines were accomplished, their stereo structures could not be determined by spectral analyses because they have multi-functionalized cyclohexenoid structures with torsional strain. In this review, synthetic efforts for pericosines in this decade are surveyed.
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Arthurs CL, Raftery J, Whitby HL, Whitehead RC, Wind NS, Stratford IJ. Arene cis-dihydrodiols: Useful precursors for the preparation of analogues of the anti-tumour agent, 2-crotonyloxymethyl-(4R,5R,6R)-4,5,6-trihydroxycyclohex-2-enone (COTC). Bioorg Med Chem Lett 2007; 17:5974-7. [PMID: 17870533 DOI: 10.1016/j.bmcl.2007.07.070] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2007] [Revised: 07/18/2007] [Accepted: 07/18/2007] [Indexed: 11/28/2022]
Abstract
The synthesis of 6-epi-COTC, a diastereoisomer of Streptomyces metabolite 2-crotonyloxymethyl-(4R,5R,6R)-4,5,6-trihydroxycyclohex-2-enone (COTC), is described. The anti-cancer activities of the novel analogue, in racemic and enantiomerically pure forms, are presented.
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Affiliation(s)
- Claire L Arthurs
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, UK
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40
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Arjona O, Gómez AM, López JC, Plumet J. Synthesis and Conformational and Biological Aspects of Carbasugars. Chem Rev 2007; 107:1919-2036. [PMID: 17488060 DOI: 10.1021/cr0203701] [Citation(s) in RCA: 277] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Odón Arjona
- Departamento de Química Orgánica, Facultad de Química, Universidad Complutense, 28040 Madrid, Spain
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41
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Carreño MC, Merino E, Ribagorda M, Somoza A, Urbano A. Enantioselective Synthesis of Natural Polyoxygenated Cyclohexanes and Cyclohexenes from [(p-Tolylsulfinyl)methyl]-p-quinols. Chemistry 2007; 13:1064-77. [PMID: 17171737 DOI: 10.1002/chem.200601330] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Exploitation of the beta-hydroxysulfoxide fragment present in a number of enantiomerically pure (SR)- and (SS)-[(p-tolylsulfinyl)methyl]-p-quinols allowed chemo- and stereocontrolled conjugate additions of different organoaluminium reagents to the cyclohexadienone moiety. The same fragment was also shown to act as an efficient chiral masking carbonyl group, after oxidation to sulfone and retroaddition in basic medium, with elimination of methyl p-tolyl sulfone. Through the use of both transformations as key steps, enantiocontrolled syntheses of different natural products-such as the two enantiomers of dihydroepiepoformin, (-)-gabosine O, (+)-epiepoformin, (-)-theobroxide and (+)-4-epigabosine A (an epimer of the natural product gabosine A)-has been achieved. The presence of the beta-hydroxy sulfone moiety makes the cyclic structures rigid, allowing a number of stereoselective transformations such as carbonyl reductions, enone epoxidations or cis-dihydroxylations, en route to the natural structures. The observed selectivities were dependent on the particular substitution in each substrate, providing evidence of a strong influence of remote groups on the preferred approach of the reactants to the reactive conformations. An advanced precursor of natural (+)-harveynone was also synthesized, but the isolation of the natural product was not possible because of the instability of the corresponding enone, containing a triple bond, under the basic conditions necessary to eliminate the beta-hydroxy sulfone. This demonstrated that the limitations of the use of the beta-hydroxy sulfoxide as a chiral protecting carbonyl group were dependent on the relative stabilities of the final targets in the presence of the required base.
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Affiliation(s)
- M Carmen Carreño
- Departamento de Química Orgánica (C-I) Universidad Autónoma, Cantoblanco, 28049 Madrid, Spain.
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42
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Yardımcı ŞD, Kaya N, Balci M. Regioselectivity in the ene-reaction of singlet oxygen with cyclic alkenes: photooxygenation of methyl-substituted 1,4-cyclohexadiene derivatives. Tetrahedron 2006. [DOI: 10.1016/j.tet.2006.07.103] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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43
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A new method for the synthesis of carba-sugar enones (gabosines) using a mercury(II)-mediated opening of 4,5-cyclopropanated pyranosides as the key-step. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2006.07.023] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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44
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Göhrt A, Grabley S, Thiericke R, Zeeck A. Secondary Metabolites by Chemical Screening, 29. ACTA ACUST UNITED AC 2006. [DOI: 10.1002/jlac.199619960424] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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45
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Ramana GV, Rao BV. Stereoselective synthesis of (−)-gabosine C using a Nozaki–Hiyama–Kishi reaction and RCM. Tetrahedron Lett 2005. [DOI: 10.1016/j.tetlet.2005.03.018] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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46
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Abstract
The studies reported here have established the biosynthetic origin of the mC7N units of acarbose and validamycin from sedo-heptulose 7-phosphate, and have identified 2-epi-5-epi-valiolone as the initial cyclization product. The deoxyhexose moiety of acarbose arises from glucose with deoxythymidyl-diphospho-4-keto-6-deoxy-D-glucose (dTDP-4-keto-6-deoxy-D-glucose) as a proximate intermediate. However, despite the identical origin of the aminocyclitol moieties in acarbose and validamycin A, the pathways of their formation seem to be substantially different. Validamycin A formation involves a number of discrete ketocyclitol intermediates, 5-epi-valiolone, valienone, and validone, whereas no free intermediates have been identified on the pathway from 2-epi-5-epi-valiolone to the pseudodisaccharide moiety of acarbose. The stage is now set for unraveling the mechanism or mechanisms by which the two components of the pseudodisaccharide moieties of acarbose and validamycin are uniquely coupled to each other via a nitrogen bridge.
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Affiliation(s)
- T Mahmud
- Department of Chemistry, University of Washington, Seattle, 98195-1700, USA
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48
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Takahashi T, Yamakoshi Y, Okayama K, Yamada J, Ge WY, Koizumi T. High-Pressure Mediated Asymmetric Diels-Alder Reaction of Chiral Sulfinylacrylate Derivatives and Its Application to Chiral Synthesis of (-)-COTC and (-)-Gabosine C. HETEROCYCLES 2002. [DOI: 10.3987/com-01-s(k)18] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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49
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Grabley S, Thiericke R, Sattler I. Tools for drug discovery: natural product-based libraries. ERNST SCHERING RESEARCH FOUNDATION WORKSHOP 2001:217-52. [PMID: 11077611 DOI: 10.1007/978-3-662-04042-3_8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- S Grabley
- Hans-Knöll-Institut für Naturstoff-Forschung e.V., Jena, Germany
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50
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Hu JF, Wunderlich D, Sattler I, Feng XZ, Grabley S, Thiericke R. Rakicidin C, A New Cyclic Depsipeptide fromStreptomycessp. European J Org Chem 2000. [DOI: 10.1002/1099-0690(200010)2000:19<3353::aid-ejoc3353>3.0.co;2-e] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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