1
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Bennett JJ, Murphy PV. Flow Chemistry for Synthesis of 2-(C-Glycosyl)acetates from Pyranoses via Tandem Wittig and Michael Reactions. Org Process Res Dev 2024; 28:1848-1859. [PMID: 38783857 PMCID: PMC11110061 DOI: 10.1021/acs.oprd.3c00414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 02/01/2024] [Accepted: 02/07/2024] [Indexed: 05/25/2024]
Abstract
C-Glycosyl compounds (C-glycosides) are a class of saccharide derivatives with improved stability over their O-linked counterparts. This paper reports the synthesis of several trans-2-(C-glycosyl)acetates via a tandem Wittig-Michael reaction from pyranoses (cyclic hemiacetals) using continuous flow processing, which gave improvements compared to reactions conducted in round-bottom flasks. Products were isolated in yields of >60% from reactions of benzyl-protected xylopyranoses, glucopyranoses, and galactopyranoses at higher temperatures and pressures, which were superior to yields from batch procedures. A two-step procedure involving the Wittig reaction followed by Michael reaction (intramolecular oxa-Michael) of the unsaturated ester obtained in the presence of DBU was developed. Reactions of protected mannopyranose gave low yields in corresponding reactions in flow due to competing C-2 epimerization.
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Affiliation(s)
- Jack J. Bennett
- School
of Biological and Chemical Sciences, University
of Galway, University Road, Galway H91 TK33, Ireland
| | - Paul V. Murphy
- School
of Biological and Chemical Sciences, University
of Galway, University Road, Galway H91 TK33, Ireland
- SSPC
− SFI Research Centre for Pharmaceuticals, University of Galway, University Road, Galway H91 TK33, Ireland
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2
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Kamala Lakshmi MV, Ali I, Perali RS. A Ring Expansion─Stereoselective Cycloaddition of Carbohydrate-Derived Donor-Acceptor Cyclopropanes: Synthesis of Bridged Oxepanone-Indole Hybrids. J Org Chem 2022; 87:12370-12385. [PMID: 36044311 DOI: 10.1021/acs.joc.2c01652] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An efficient method for the construction of sugar-derived chiral oxepanone-indole molecular hybrids is investigated. The reaction condition is optimized by monitoring the progress at various temperatures, with various solvents, and with different Lewis acid catalysts. Under optimized conditions, high stereoselectivity and efficiency are achieved in most of the formed cycloadducts. The accessibility of the strategy is evaluated by utilizing an array of carbohydrate-derived donor-acceptor cyclopropanes and variably substituted indole substrates. Additionally, quick access to the bridged indole-oxepanone framework is described by utilizing a diastereoselective (3+2) cycloaddition of aryl-substituted donor-acceptor cyclopropanes incorporated in a pyran ring.
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Affiliation(s)
- M V Kamala Lakshmi
- School of Chemistry, University of Hyderabad, C. R. Rao Road, Gachibowli, Hyderabad 500 046, India
| | - Intzar Ali
- School of Chemistry, University of Hyderabad, C. R. Rao Road, Gachibowli, Hyderabad 500 046, India
| | - Ramu Sridhar Perali
- School of Chemistry, University of Hyderabad, C. R. Rao Road, Gachibowli, Hyderabad 500 046, India
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3
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Zhao WC, Li RP, Ma C, Liao QY, Wang M, He ZT. Stereoselective gem-C,B-Glycosylation via 1,2-Boronate Migration. J Am Chem Soc 2022; 144:2460-2467. [PMID: 35112837 DOI: 10.1021/jacs.1c11842] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A novel protocol is established for the long-standing challenge of stereoselective geminal bisglycosylations of saccharides. The merger of PPh3 as a traceless glycosidic leaving group and 1,2-boronate migration enables the simultaneous introduction of C-C and C-B bonds at the anomeric stereogenic center of furanoses and pyranoses. The power of this method is showcased by a set of site-selective modifications of glycosylation products for the construction of bioactive conjugates and skeletons. A scarce metal-free 1,1-difunctionalization process of alkenes is also concomitantly demonstrated.
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Affiliation(s)
- Wei-Cheng Zhao
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Shanghai 200032, China
| | - Rui-Peng Li
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Shanghai 200032, China
| | - Chao Ma
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Shanghai 200032, China
| | - Qi-Ying Liao
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Shanghai 200032, China
| | - Miao Wang
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Shanghai 200032, China
| | - Zhi-Tao He
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Shanghai 200032, China
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4
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Perali RS, Boddu UR, Sankar DC. [1,2]- vs [2,3]-Wittig Rearrangement in Carbohydrate Derived Alkenyl Systems. Org Lett 2021; 23:3850-3853. [PMID: 33929209 DOI: 10.1021/acs.orglett.1c00988] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A simple and efficient strategy for the regio- and stereoselective synthesis of carbon-branched sugar derivatives is described. The successful implementation of Wittig rearrangement on substrates derived by Ferrier rearrangement of various glycals and 3-O-alkenyl glycals is studied extensively. A highly selective [1,2]- or [2,3]-Wittig rearrangement is revealed that provides a novel class of stereodefined 3-C-branched glycals and C-glycosides, which are otherwise difficult to obtain.
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Affiliation(s)
- Ramu Sridhar Perali
- School of Chemistry, University of Hyderabad, Gachibowli, Hyderabad 500 046, India
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5
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Fadeev AA, Chagarovskiy AO, Makarov AS, Levina II, Ivanova OA, Uchuskin MG, Trushkov IV. Synthesis of (Het)aryl 2-(2-hydroxyaryl)cyclopropyl Ketones. Molecules 2020; 25:molecules25235748. [PMID: 33291488 PMCID: PMC7729819 DOI: 10.3390/molecules25235748] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Revised: 12/02/2020] [Accepted: 12/04/2020] [Indexed: 11/16/2022] Open
Abstract
A simple general method for the synthesis of 1-acyl-2-(ortho-hydroxyaryl)cyclopropanes, which belong to the donor–acceptor cyclopropane family, has been developed. This method, based on the Corey–Chaykovsky cyclopropanation of 2-hydroxychalcones, allows for the preparation of a large diversity of hydroxy-substituted cyclopropanes, which can serve as promising building blocks for the synthesis of various bioactive compounds.
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Affiliation(s)
- Alexander A. Fadeev
- Department of Organic Chemistry, Faculty of Science, Charles University, Hlavova 8, 12800 Prague 2, Czech Republic;
- Department of Chemistry, Perm State University, Bukireva 15, Perm 614990, Russia;
| | - Alexey O. Chagarovskiy
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky pr. 47, Moscow 119991, Russia; (A.O.C.); (O.A.I.)
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Samory Mashela 1, Moscow 117997, Russia
| | - Anton S. Makarov
- Department of Chemistry, Perm State University, Bukireva 15, Perm 614990, Russia;
| | - Irina I. Levina
- N. M. Emanuel Institute of Biochemical Physcis Russian Academy of Sciences, Kosygina 4, Moscow 117198, Russia;
| | - Olga A. Ivanova
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky pr. 47, Moscow 119991, Russia; (A.O.C.); (O.A.I.)
- Department of Chemistry, M. V. Lomonosov Moscow State University, Leninskie gory 1-3, Moscow 119991, Russia
| | - Maxim G. Uchuskin
- Department of Chemistry, Perm State University, Bukireva 15, Perm 614990, Russia;
- Correspondence: (M.G.U.); (I.V.T.); Tel.: +7-916-645-9951 (I.V.T.)
| | - Igor V. Trushkov
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky pr. 47, Moscow 119991, Russia; (A.O.C.); (O.A.I.)
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Samory Mashela 1, Moscow 117997, Russia
- Correspondence: (M.G.U.); (I.V.T.); Tel.: +7-916-645-9951 (I.V.T.)
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6
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Mai-Linde Y, Linker T. Radical Clock Probes to Determine Carbohydrate Radical Stabilities. Org Lett 2020; 22:1525-1529. [PMID: 32009406 DOI: 10.1021/acs.orglett.0c00111] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Carbohydrate radical stabilities in the 1- and 2-position have been determined by a radical clock approach, starting from cyclopropanated sugars with xanthates as precursors. Various hexoses and pentoses afforded 1-deoxy sugars as main products, indicating that anomeric radicals are more stable than radicals in the 2-position. An additional influence of the configurations on radical stabilities has been observed. Our results should be interesting for the understanding of 1,2-radical rearrangements in carbohydrate chemistry and offer an easy access to deoxy-vinyl sugars.
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Affiliation(s)
- Yasemin Mai-Linde
- Department of Chemistry , University of Potsdam , Karl-Liebknecht-Str. 24-25 , 14476 Golm , Germany
| | - Torsten Linker
- Department of Chemistry , University of Potsdam , Karl-Liebknecht-Str. 24-25 , 14476 Golm , Germany
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7
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Tardieu D, Desnoyers M, Laye C, Hazelard D, Kern N, Compain P. Stereoselective Synthesis of C,C-Glycosides from exo-Glycals Enabled by Iron-Mediated Hydrogen Atom Transfer. Org Lett 2019; 21:7262-7267. [DOI: 10.1021/acs.orglett.9b02496] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Damien Tardieu
- Laboratoire d’Innovation Moléculaire et Applications (LIMA), Université de Strasbourg/Université de Haute-Alsace/CNRS (UMR 7042), Equipe de Synthèse Organique et Molécules Bioactives (SYBIO), ECPM, 25 rue Becquerel, 67087 Strasbourg, France
| | - Marine Desnoyers
- Laboratoire d’Innovation Moléculaire et Applications (LIMA), Université de Strasbourg/Université de Haute-Alsace/CNRS (UMR 7042), Equipe de Synthèse Organique et Molécules Bioactives (SYBIO), ECPM, 25 rue Becquerel, 67087 Strasbourg, France
| | - Claire Laye
- Laboratoire d’Innovation Moléculaire et Applications (LIMA), Université de Strasbourg/Université de Haute-Alsace/CNRS (UMR 7042), Equipe de Synthèse Organique et Molécules Bioactives (SYBIO), ECPM, 25 rue Becquerel, 67087 Strasbourg, France
| | - Damien Hazelard
- Laboratoire d’Innovation Moléculaire et Applications (LIMA), Université de Strasbourg/Université de Haute-Alsace/CNRS (UMR 7042), Equipe de Synthèse Organique et Molécules Bioactives (SYBIO), ECPM, 25 rue Becquerel, 67087 Strasbourg, France
| | - Nicolas Kern
- Laboratoire d’Innovation Moléculaire et Applications (LIMA), Université de Strasbourg/Université de Haute-Alsace/CNRS (UMR 7042), Equipe de Synthèse Organique et Molécules Bioactives (SYBIO), ECPM, 25 rue Becquerel, 67087 Strasbourg, France
| | - Philippe Compain
- Laboratoire d’Innovation Moléculaire et Applications (LIMA), Université de Strasbourg/Université de Haute-Alsace/CNRS (UMR 7042), Equipe de Synthèse Organique et Molécules Bioactives (SYBIO), ECPM, 25 rue Becquerel, 67087 Strasbourg, France
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8
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Nayak S, Panda P, Raiguru BP, Mohapatra S, Purohit CS. Base mediated green synthesis of enantiopure 2-C-spiro-glycosyl-3-nitrochromenes. Org Biomol Chem 2018; 17:74-82. [PMID: 30478467 DOI: 10.1039/c8ob02278j] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A novel green synthetic methodology has been developed to obtain enantiopure (2S)-2-C-spiro-glycosyl-3-nitrochromenes following the oxa-Michael-aldol condensation reaction of sugar derived 3-C-vinyl nitro olefins with substituted salicylaldehydes using Et3N as a base under neat conditions at rt-40 °C. The stereochemistry of the product is confirmed by a single crystal X-ray study. Several advantages are associated with this protocol such as cost effectiveness, easy accessibility, short reaction time, high yields, wide substrate scope and high enantiopurity.
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Affiliation(s)
- Sabita Nayak
- Department of Chemistry, Ravenshaw University, Cuttack, Odisha, India.
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9
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Affiliation(s)
- You Yang
- Shanghai
Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Biao Yu
- State
Key Laboratory of Bio-organic and Natural Products Chemistry, Shanghai
Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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10
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Ganesh V, Sridhar PR, Chandrasekaran S. Synthetic Applications of Carbohydrate-derived Donor-Acceptor Cyclopropanes. Isr J Chem 2016. [DOI: 10.1002/ijch.201500086] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Venkataraman Ganesh
- Department of Organic Chemistry; Indian Institute of Science; Bangalore- 560012 Karnataka India
| | - Perali Ramu Sridhar
- School of Chemistry; University of Hyderabad, Gachibowli; Hyderabad- 500046 Telangana India), Tel.: (+91) 40-6679-4823, Fax: (+91) 40-2301-2460
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11
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Bera S, Chatterjee B, Mondal D. Construction of quaternary stereocentres on carbohydrate scaffolds. RSC Adv 2016. [DOI: 10.1039/c6ra13898e] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
This review describes a glimpse of the various strategies for constructing stereo-defined quaternary centres in densely functionalised carbohydrates moiety of structurally intriguing and biologically potent natural products and building blocks.
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Affiliation(s)
- Smritilekha Bera
- School of Chemical Sciences
- Central University of Gujarat
- Gandhinagar-382030
- India
| | | | - Dhananjoy Mondal
- School of Chemical Sciences
- Central University of Gujarat
- Gandhinagar-382030
- India
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12
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Vankar YD, Linker T. Recent Developments in the Synthesis of 2-C-Branched and 1,2-Annulated Carbohydrates. European J Org Chem 2015. [DOI: 10.1002/ejoc.201501176] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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13
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Ramakrishna B, Sridhar PR. Stereoselective synthesis of 1,6-dioxaspirolactones from spiro-cyclopropanecarboxylated sugars: total synthesis of dihydro-pyrenolide D. RSC Adv 2015. [DOI: 10.1039/c4ra16753h] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A one-pot protocol for the stereoselective construction of γ-spiroketal γ-lactone frameworks from sugar derived spiro-cyclopropanecarboxylic acids involving a ring enlargement and cyclization reaction is revealed.
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14
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Lambu MR, Hussain A, Sharma DK, Yousuf SK, Singh B, Tripathi AK, Mukherjee D. Synthesis of C-spiro-glycoconjugates from sugar lactones via zinc mediated Barbier reaction. RSC Adv 2014. [DOI: 10.1039/c3ra46796a] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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15
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Chatupheeraphat A, Soorukram D, Kuhakarn C, Tuchinda P, Reutrakul V, Pakawatchai C, Saithong S, Pohmakotr M. Synthesis ofgem-Difluoromethylenated Spiro-γ-butyrolactones by Employing PhSCF2Si(CH3)3as agem-Difluoromethylenating Agent. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300998] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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16
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Ramakrishna B, Sridhar PR. Ring-Contraction vs Ring-Expansion Reactions of Spiro-cyclopropanecarboxylated Sugars. Org Lett 2013; 15:4474-7. [DOI: 10.1021/ol402021e] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Bandi Ramakrishna
- School of Chemistry, University of Hyderabad, Hyderabad-500 046, India
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17
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Wang P, Song S, Miao Z, Yang G, Zhang A. InBr3-Mediated One-Pot Synthesis of 2-(Polyhydroxylatedalkyl)-N-aryl-/-alkylpyrroles from 1,2-Cyclopropa-3-pyranone and Amines. Org Lett 2013; 15:3852-5. [DOI: 10.1021/ol401489x] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Pingyuan Wang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, China, and CAS Key Laboratory of Receptor Research, Synthetic Organic & Medicinal Chemistry Laboratory (SOMCL), and State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica (SIMM), Chinese Academy of Sciences, Shanghai, China
| | - Shanshan Song
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, China, and CAS Key Laboratory of Receptor Research, Synthetic Organic & Medicinal Chemistry Laboratory (SOMCL), and State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica (SIMM), Chinese Academy of Sciences, Shanghai, China
| | - Zehong Miao
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, China, and CAS Key Laboratory of Receptor Research, Synthetic Organic & Medicinal Chemistry Laboratory (SOMCL), and State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica (SIMM), Chinese Academy of Sciences, Shanghai, China
| | - Guangfu Yang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, China, and CAS Key Laboratory of Receptor Research, Synthetic Organic & Medicinal Chemistry Laboratory (SOMCL), and State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica (SIMM), Chinese Academy of Sciences, Shanghai, China
| | - Ao Zhang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, China, and CAS Key Laboratory of Receptor Research, Synthetic Organic & Medicinal Chemistry Laboratory (SOMCL), and State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica (SIMM), Chinese Academy of Sciences, Shanghai, China
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18
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Wu DD, Huang CM, Wu YH, Fun HK, Xu JH, Zhang Y. Acid-mediated transformation of spirocyclopropyl oxetanes: a facile approach to spirocyclopropyl butenolides and γ-butyrolactones. RSC Adv 2013. [DOI: 10.1039/c3ra00178d] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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19
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Sridhar PR, Venukumar P. A Ring Expansion–Glycosylation Strategy toward the Synthesis of Septano-oligosaccharides. Org Lett 2012; 14:5558-61. [DOI: 10.1021/ol302677z] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
| | - Patteti Venukumar
- School of Chemistry, University of Hyderabad, Hyderabad 500046, India
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20
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Sridhar PR, Reddy GM, Seshadri K. Stereoselective Synthesis ofcis-Fused Perhydrofuro[2,3-b]furan Derivatives from Sugar-Derived Allyl Vinyl Ethers. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200898] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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21
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Synthesis of conformationally-constrained thio(seleno)hydantoins and α-triazolyl lactones from d-arabinose as potential glycosidase inhibitors. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.03.087] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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22
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23
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Zhao W, Wang WG, Li XN, Du X, Zhan R, Zou J, Li Y, Zhang HB, He F, Pu JX, Sun HD. Neoadenoloside A, a highly functionalized diterpene C-glycoside, from Isodon adenolomus. Chem Commun (Camb) 2012; 48:7723-5. [DOI: 10.1039/c2cc33656a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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24
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Sridhar PR, Sudharani C. Stereoselective synthesis of C-2-methylene and C-2-methyl-C-glycosides by Claisen rearrangement of 2-vinyloxymethyl glycals. RSC Adv 2012. [DOI: 10.1039/c2ra21505e] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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