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Takagi A, Usuguchi K, Takashima I, Okuda K. Total Synthesis of Antiausterity Agent (±)-Uvaridacol L by Regioselective Axial Diacylation of a myo-Inositol Orthoester. Org Lett 2021; 23:4083-4087. [PMID: 33596082 DOI: 10.1021/acs.orglett.1c00079] [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
The antiausterity natural product (±)-uvaridacol L was synthesized for the first time in seven steps from myo-inositol. The key reaction of this synthesis, axial selective dibenzoylation of myo-inositol orthoformate, was achieved using a catalytic amount of tetrabutylammonium fluoride (TBAF). The preferential cytotoxicity of racemic uvaridacol L against cancer cell lines able to adapt to nutrient deprivation was also evaluated under nutrient deprived conditions. Morphological evaluation was also carried out.
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Affiliation(s)
- Akira Takagi
- Laboratory of Bioorganic & Natural Products Chemistry, Kobe Pharmaceutical University, 4-19-1 Motoyamakita, Higashinada, Kobe, Hyogo 658-8558, Japan
| | - Kazuki Usuguchi
- Laboratory of Bioorganic & Natural Products Chemistry, Kobe Pharmaceutical University, 4-19-1 Motoyamakita, Higashinada, Kobe, Hyogo 658-8558, Japan
| | - Ippei Takashima
- Laboratory of Bioorganic & Natural Products Chemistry, Kobe Pharmaceutical University, 4-19-1 Motoyamakita, Higashinada, Kobe, Hyogo 658-8558, Japan
| | - Kensuke Okuda
- Laboratory of Bioorganic & Natural Products Chemistry, Kobe Pharmaceutical University, 4-19-1 Motoyamakita, Higashinada, Kobe, Hyogo 658-8558, Japan
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2
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Sarkar N, Sardessai RS, Shashidhar MS, Tamboli MI, Gonnade RG. Lithium hydride as an efficient reagent for the preparation of 1,2-anhydro inositols: Does the reaction proceed through 'axial rich' conformation? Carbohydr Res 2018; 463:32-36. [PMID: 29751207 DOI: 10.1016/j.carres.2018.04.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Revised: 04/20/2018] [Accepted: 04/25/2018] [Indexed: 11/16/2022]
Abstract
scyllo-Inositol derived 1,2-trans-diequatorial halohydrins can be efficiently converted to the corresponding epoxides in the presence of lithium hydride. The structure of one of the epoxides was determined by single crystal X-ray diffraction analysis. This provides a potential route for the preparation of ring modified inositol derivatives. DFT calculations suggest that this epoxide formation could be proceeding through the intermediacy of the cyclohexane ring-inverted axial-rich conformer (1,2-trans-diaxial halohydrin). This is supported by the results of DFT calculations on the formation of inositol orthoformate, where the product is locked in the axial-rich conformation, while the starting inositol has the equatorial-rich conformation.
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Affiliation(s)
- Nitai Sarkar
- Academy of Scientific and Innovative Research (AcSIR), India; The Division of Organic Chemistry, CSIR-National Chemical Laboratory, Pashan Road, Pune 411 008, India.
| | - Richa S Sardessai
- The Division of Organic Chemistry, CSIR-National Chemical Laboratory, Pashan Road, Pune 411 008, India.
| | - Mysore S Shashidhar
- Academy of Scientific and Innovative Research (AcSIR), India; The Division of Organic Chemistry, CSIR-National Chemical Laboratory, Pashan Road, Pune 411 008, India.
| | - Majid I Tamboli
- The Division of Organic Chemistry, CSIR-National Chemical Laboratory, Pashan Road, Pune 411 008, India.
| | - Rajesh G Gonnade
- Academy of Scientific and Innovative Research (AcSIR), India; Center for Materials Characterization, CSIR- National Chemical Laboratory, Pashan Road, Pune 411008, India.
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3
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Krishnaswamy S, Shashidhar MS. Correlation of Intermolecular Acyl Transfer Reactivity with Noncovalent Lattice Interactions in Molecular Crystals: Toward Prediction of Reactivity of Organic Molecules in the Solid State. J Org Chem 2018. [DOI: 10.1021/acs.joc.8b00293] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shobhana Krishnaswamy
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Pune 411008, India
| | - Mysore S. Shashidhar
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Pune 411008, India
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4
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Silva S, Ascenso OS, Lourenço EC, Archer M, Maycock CD, Ventura MR. Syntheses of the plant auxin conjugate 2-O-(indole-3-acetyl)-myo-inositol IAInos. Org Biomol Chem 2018; 16:6860-6864. [DOI: 10.1039/c8ob02096e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The two first chemical syntheses of IAInos (2-O-(indole-3-acetyl)-myo-inositol), an important plant hormone, are described.
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Affiliation(s)
| | | | | | - Margarida Archer
- Instituto de Tecnologia Química e Biológica António Xavier
- Universidade Nova de Lisboa
- 2780-157 Oeiras
- Portugal
| | - Christopher D. Maycock
- Instituto de Tecnologia Química e Biológica António Xavier
- Universidade Nova de Lisboa
- 2780-157 Oeiras
- Portugal
- Faculdade de Ciências da Universidade de Lisboa
| | - M. Rita Ventura
- Instituto de Tecnologia Química e Biológica António Xavier
- Universidade Nova de Lisboa
- 2780-157 Oeiras
- Portugal
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5
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Okauchi T, Nakamura S, Tsubaki K, Asakawa M, Kitamura M. Synthesis of (±)-myo-inositol 4-methylenephosphonate via Rh-Catalyzed hydrogenation of vinylphosphonate. Carbohydr Res 2017; 448:24-27. [DOI: 10.1016/j.carres.2017.05.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 05/25/2017] [Accepted: 05/25/2017] [Indexed: 11/15/2022]
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6
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Forget SM, Jee A, Smithen DA, Jagdhane R, Anjum S, Beaton SA, Palmer DRJ, Syvitski RT, Jakeman DL. Kinetic evaluation of glucose 1-phosphate analogues with a thymidylyltransferase using a continuous coupled enzyme assay. Org Biomol Chem 2015; 13:866-75. [PMID: 25408103 DOI: 10.1039/c4ob02057j] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cps2L, a thymidylytransferase, is the first enzyme in Streptococcus pneumoniae L-rhamnose biosynthesis and an antibacterial target. We herein report the evaluation of six sugar phosphate analogues selected to further probe Cps2L substrate tolerance. A modified continuous spectrophotometric assay was employed for facile detection of pyrophosphate (PPi) released from nucleotidylyltransfase-catalysed condensation of sugar 1-phosphates and nucleoside triphosphates to produce sugar nucleotides. Additionally, experiments using waterLOGSY NMR spectroscopy were investigated as a complimentary method to evaluate binding affinity to Cps2L.
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Affiliation(s)
- S M Forget
- Department of Chemistry, Dalhousie University, 6274 Coburg Rd, PO Box 15, 000, Halifax, Nova Scotia B3H 4R2, Canada.
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7
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Gurale BP, Sardessai RS, Shashidhar MS. myo-Inositol 1,3-acetals as early intermediates during the synthesis of cyclitol derivatives. Carbohydr Res 2014; 399:8-14. [PMID: 25216930 DOI: 10.1016/j.carres.2014.08.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Revised: 08/12/2014] [Accepted: 08/13/2014] [Indexed: 10/24/2022]
Abstract
Synthetic sequences starting from commercially available myo-inositol necessarily involve protection-deprotection strategies of its six hydroxyl groups. Several strategies have been developed/attempted over the last several decades leading to the synthesis of naturally occurring phosphoinositols, their analogs, and cyclitol derivatives. Of late, myo-inositol 1,3-acetals, which can be obtained by the reductive cleavage of myo-inositol orthoesters have emerged as early intermediates for the synthesis of phosphorylated and other inositol derivatives. This mini-review is an attempt to illustrate the economy and convenience of using myo-inositol 1,3-acetals as early intermediates during syntheses from myo-inositol.
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Affiliation(s)
- Bharat P Gurale
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Pashan Road, Pune 411 008, India
| | - Richa S Sardessai
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Pashan Road, Pune 411 008, India
| | - Mysore S Shashidhar
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Pashan Road, Pune 411 008, India.
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8
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Lauber MB, Daniliuc CG, Paradies J. Desymmetrization of 4,6-diprotected myo-inositol. Chem Commun (Camb) 2014; 49:7409-11. [PMID: 23860461 DOI: 10.1039/c3cc43663b] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The asymmetric desymmetrization of 4,6-diprotected myo-inositol derivatives was achieved by using a bifunctional, readily available nucleophilic catalyst. The orthogonally protected products were obtained in 80-99% yield with 90-99% ee. Such structures serve as potential enantiopure building blocks for the synthesis of myo-inositol phosphates.
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Affiliation(s)
- Markus B Lauber
- Karlsruhe Institute of Technology, Institute for Organic Chemistry, Fritz-Haber Weg 6, Germany
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9
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Godage H, Riley AM, Woodman TJ, Thomas MP, Mahon MF, Potter BVL. Regioselective opening of myo-inositol orthoesters: mechanism and synthetic utility. J Org Chem 2013; 78:2275-88. [PMID: 23438216 PMCID: PMC3601604 DOI: 10.1021/jo3027774] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2012] [Indexed: 01/06/2023]
Abstract
Acid hydrolysis of myo-inositol 1,3,5-orthoesters, apart from orthoformates, exclusively affords the corresponding 2-O-acyl myo-inositol products via a 1,2-bridged five-membered ring dioxolanylium ion intermediate observed by NMR spectroscopy. These C-2-substituted inositol derivatives provide valuable precursors for rapid and highly efficient routes to 2-O-acyl inositol 1,3,4,5,6-pentakisphosphates and myo-inositol 1,3,4,5,6-pentakisphosphate with biologically interesting and anticancer properties. Deuterium incorporation into the α-methylene group of such alkyl ester products (2-O-C(O)CD2R), when the analogous alkyl orthoester is treated with deuterated acid, is established utilizing the novel orthoester myo-inositol 1,3,5-orthobutyrate as an example. Such deuterated ester products provide intermediates for deuterium-labeled synthetic analogues. Investigation into this selective formation of 2-O-ester products and the deuterium incorporation is presented with proposed mechanisms from NMR experiments.
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Affiliation(s)
- Himali
Y. Godage
- Wolfson
Laboratory of Medicinal Chemistry, Department of Pharmacy
and Pharmacology, X-ray
Crystallographic Suite, Department of Chemistry, University of Bath, Bath BA2 7AY, U.K
| | - Andrew M. Riley
- Wolfson
Laboratory of Medicinal Chemistry, Department of Pharmacy
and Pharmacology, X-ray
Crystallographic Suite, Department of Chemistry, University of Bath, Bath BA2 7AY, U.K
| | - Timothy J. Woodman
- Wolfson
Laboratory of Medicinal Chemistry, Department of Pharmacy
and Pharmacology, X-ray
Crystallographic Suite, Department of Chemistry, University of Bath, Bath BA2 7AY, U.K
| | - Mark P. Thomas
- Wolfson
Laboratory of Medicinal Chemistry, Department of Pharmacy
and Pharmacology, X-ray
Crystallographic Suite, Department of Chemistry, University of Bath, Bath BA2 7AY, U.K
| | - Mary F. Mahon
- Wolfson
Laboratory of Medicinal Chemistry, Department of Pharmacy
and Pharmacology, X-ray
Crystallographic Suite, Department of Chemistry, University of Bath, Bath BA2 7AY, U.K
| | - Barry V. L. Potter
- Wolfson
Laboratory of Medicinal Chemistry, Department of Pharmacy
and Pharmacology, X-ray
Crystallographic Suite, Department of Chemistry, University of Bath, Bath BA2 7AY, U.K
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10
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Mart A, Shashidhar MS. Elaboration of the ether cleaving ability and selectivity of the classical Pearlman's catalyst [Pd(OH)2/C]: concise synthesis of a precursor for a myo-inositol pyrophosphate. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.09.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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11
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Gurale BP, Shashidhar MS, Gonnade RG. Synthesis of the aminocyclitol units of (-)-hygromycin A and methoxyhygromycin from myo-inositol. J Org Chem 2012; 77:5801-7. [PMID: 22663090 DOI: 10.1021/jo300444b] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Concise and efficient syntheses of the aminocyclitol cores of hygromycin A (HMA) and methoxyhygromycin (MHM) have been achieved starting from readily available myo-inositol. Reductive cleavage of myo-inositol orthoformate to the corresponding 1,3-acetal, stereospecific introduction of the amino group via the azide, and resolution of a racemic cyclitol derivative as its diastereomeric mandelate esters are the key steps in the synthesis. Synthesis of the aminocyclitol core of hygromycin A involved chromatography in half of the total number of steps, and the aminocyclitol core of methoxyhygromycin involved only one chromatography.
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Affiliation(s)
- Bharat P Gurale
- Division of Organic Chemistry, National Chemical Laboratory, Dr. Homibhabha Road, Pune-411 008, India
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13
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Nkambule CM, Kwezi NW, Kinfe HH, Nokwequ MG, Gammon DW, Oscarson S, Karlsson E. Efficient regioselective protection of myo-inositol via facile protecting group migration. Tetrahedron 2011. [DOI: 10.1016/j.tet.2010.11.063] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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14
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Swarbrick JM, Gaffney PRJ. Synthesis of 4-C-alkyl inositol 1,4,5-trisphosphates and 1,3,4,5-tetrakisphosphates. J Org Chem 2010; 75:4376-86. [PMID: 20507072 DOI: 10.1021/jo100414e] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The preparation of 2,3,6-O-tribenzyl- and 2,6-O-dibenzyl-myo-inositols with beta-primary, secondary, and tertiary 4-C-alkyl or aryl groups is reported. Five of these novel polyols are elaborated to 4-C-alkyl Ins(1,4,5)P(3) and Ins(1,3,4,5)P(4) analogues. Regio- and stereoselective introduction of 4-C-alkyl or aryl substituents proceeded via a 4-exo-methylene oxide. Subsequent regioselective reduction of an orthobenzoate provided a divergent method to access both InsP(3) and InsP(4) precursors. Previously unreported phosphorylation of the tertiary hydroxyl and global deprotection afforded novel analogues that retain their full complement of polar and charged binding features.
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Affiliation(s)
- Joanna M Swarbrick
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, UK
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15
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Jagdhane RC, Shashidhar MS. Orthogonally Protected Cyclohexanehexols by a “One Reaction - One Product” Approach: Efficient Access to Cyclitols and Their Analogs. European J Org Chem 2010. [DOI: 10.1002/ejoc.201000009] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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16
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Murali C, Gurale BP, Shashidhar MS. Intramolecular Hydrogen Abstraction in Radicals Derived from Inositol 1,3-Acetals: Efficient Access to Cyclitols. European J Org Chem 2010. [DOI: 10.1002/ejoc.200901156] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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17
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Padiyar LT, Wen YS, Hung SC. Metal trifluoromethanesulfonate-catalyzed regioselective acylation of myo-inositol 1,3,5-orthoformate. Chem Commun (Camb) 2010; 46:5524-6. [DOI: 10.1039/c0cc00236d] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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18
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Devaraj S, Jagdhane RC, Shashidhar MS. Relative reactivity of hydroxyl groups in inositol derivatives: role of metal ion chelation. Carbohydr Res 2009; 344:1159-66. [DOI: 10.1016/j.carres.2009.04.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2009] [Revised: 04/04/2009] [Accepted: 04/09/2009] [Indexed: 10/20/2022]
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Sureshan KM, Devaraj S, Shashidhar MS. Regioselective O-acylation of myo-inositol 1,3,5-orthoesters: dependence of regioselectivity on the stoichiometry of the base. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.01.060] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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20
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Swarbrick JM, Cooper S, Bultynck G, Gaffney PRJ. Regioselective deprotection of orthobenzoates for the synthesis of inositol phosphates. Org Biomol Chem 2009; 7:1709-15. [DOI: 10.1039/b901890e] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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21
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Dixit SS, Shashidhar MS. Inositol derived crown ethers: effect of auxiliary protecting groups and the relative orientation of crown ether oxygen atoms on their metal ion binding ability. Tetrahedron 2008. [DOI: 10.1016/j.tet.2007.12.034] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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22
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Murali C, Shashidhar MS, Gopinath CS. Hydroxyl group deprotection reactions with Pd(OH)2/C: a convenient alternative to hydrogenolysis of benzyl ethers and acid hydrolysis of ketals. Tetrahedron 2007. [DOI: 10.1016/j.tet.2007.02.096] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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23
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Godage HY, Riley AM, Woodman TJ, Potter BVL. Regioselective hydrolysis of myo-inositol 1,3,5-orthobenzoate via a 1,2-bridged 2'-phenyl-1',3'-dioxolan-2'-ylium ion provides a rapid route to the anticancer agent Ins(1,3,4,5,6)P5. Chem Commun (Camb) 2006:2989-91. [PMID: 16832513 DOI: 10.1039/b605392k] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Acid hydrolysis of myo-inositol 1,3,5-orthobenzoate leads regioselectively to 2-O-benzoyl-myo-inositol via a 1,2-bridged 2'-phenyl-1',3'-dioxolan-2'-ylium ion observed by 1H and 13C NMR spectroscopy, providing the precursor for a highly efficient route to the anticancer agent myo-inositol 1,3,4,5,6-pentakisphosphate.
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Affiliation(s)
- Himali Y Godage
- Wolfson Laboratory of Medicinal Chemistry, Department of Pharmacy and Pharmacology, University of Bath, Claverton Down, Bath, BA2 7AY, UK
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Dixit SS, Shashidhar MS, Devaraj S. Cyclitol based metal complexing agents. Preference for the extraction of lithium by myo-inositol based crown-4-ethers depends on the relative orientation of crown ether oxygen atoms. Tetrahedron 2006. [DOI: 10.1016/j.tet.2006.02.075] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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25
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Lee NY, Jang WJ, Yu SH, Im J, Chung SK. Syntheses of glycodendrimers having scyllo-inositol as the scaffold. Tetrahedron Lett 2005. [DOI: 10.1016/j.tetlet.2005.07.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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