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Su X, Dohle W, Mills SJ, Watt JM, Rossi AM, Taylor CW, Potter BVL. Inositol Adenophostin: Convergent Synthesis of a Potent Agonist of d- myo-Inositol 1,4,5-Trisphosphate Receptors. ACS OMEGA 2020; 5:28793-28811. [PMID: 33195933 PMCID: PMC7659177 DOI: 10.1021/acsomega.0c04145] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 10/08/2020] [Indexed: 06/11/2023]
Abstract
d-myo-Inositol 1,4,5-trisphosphate receptors (IP3Rs) are Ca2+ channels activated by the intracellular messenger inositol 1,4,5-trisphosphate (IP3, 1). The glyconucleotide adenophostin A (AdA, 2) is a potent agonist of IP3Rs. A recent synthesis of d-chiro-inositol adenophostin (InsAdA, 5) employed suitably protected chiral building blocks and replaced the d-glucose core by d-chiro-inositol. An alternative approach to fully chiral material is now reported using intrinsic sugar chirality to avoid early isomer resolution, involving the coupling of a protected and activated racemic myo-inositol derivative to a d-ribose derivative. Diastereoisomer separation was achieved after trans-isopropylidene group removal and the absolute ribose-inositol conjugate stereochemistry assigned with reference to the earlier synthesis. Optimization of stannylene-mediated regiospecific benzylation was explored using the model 1,2-O-isopropylidene-3,6-di-O-benzyl-myo-inositol and conditions successfully transferred to one conjugate diastereoisomer with 3:1 selectivity. However, only roughly 1:1 regiospecificity was achieved on the required diastereoisomer. The conjugate regioisomers of benzyl derivatives 39 and 40 were successfully separated and 39 was transformed subsequently to InsAdA after amination, pan-phosphorylation, and deprotection. InsAdA from this synthetic route bound with greater affinity than AdA to IP3R1 and was more potent in releasing Ca2+ from intracellular stores through IP3Rs. It is the most potent full agonist of IP3R1 known and .equipotent with material from the fully chiral synthetic route.
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Affiliation(s)
- Xiangdong Su
- Medicinal
Chemistry & Drug Discovery, Department of Pharmacology, University of Oxford, Mansfield Road, Oxford OX1 3QT, U.K.
| | - Wolfgang Dohle
- Medicinal
Chemistry & Drug Discovery, Department of Pharmacology, University of Oxford, Mansfield Road, Oxford OX1 3QT, U.K.
| | - Stephen J. Mills
- Medicinal
Chemistry & Drug Discovery, Department of Pharmacology, University of Oxford, Mansfield Road, Oxford OX1 3QT, U.K.
| | - Joanna M. Watt
- Medicinal
Chemistry & Drug Discovery, Department of Pharmacology, University of Oxford, Mansfield Road, Oxford OX1 3QT, U.K.
- Wolfson
Laboratory of Medicinal Chemistry, Department of Pharmacy and Pharmacology, University of Bath, Claverton Down, Bath BA2 7AY, U.K.
| | - Ana M. Rossi
- Department
of Pharmacology, University of Cambridge, Tennis Court Road, Cambridge CB2 1PD, U.K.
| | - Colin W. Taylor
- Department
of Pharmacology, University of Cambridge, Tennis Court Road, Cambridge CB2 1PD, U.K.
| | - Barry V. L. Potter
- Medicinal
Chemistry & Drug Discovery, Department of Pharmacology, University of Oxford, Mansfield Road, Oxford OX1 3QT, U.K.
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Dohle W, Su X, Mills SJ, Rossi A, Taylor CW, Potter BVL. A synthetic cyclitol-nucleoside conjugate polyphosphate is a highly potent second messenger mimic. Chem Sci 2019; 10:5382-5390. [PMID: 31171961 PMCID: PMC6540904 DOI: 10.1039/c9sc00445a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Accepted: 04/23/2019] [Indexed: 12/11/2022] Open
Abstract
Reactions that form sec-sec ethers are well known, but few lead to compounds with dense functionality around the O-linkage. Replacement of the α-glucopyranosyl unit of adenophostin A, a potent d-myo-inositol 1,4,5-trisphosphate (IP3R) agonist, with a d-chiro-inositol surrogate acting substantially as a pseudosugar, leads to "d-chiro-inositol adenophostin". At its core, this cyclitol-nucleoside trisphosphate comprises a nucleoside sugar linked via an axial d-chiro-inositol 1-hydroxyl-adenosine 3'-ribose ether linkage. A divergent synthesis of d-chiro-inositol adenophostin has been achieved. Key features of the synthetic strategy to produce a triol for phosphorylation include a new selective mono-tosylation of racemic 1,2:4,5-di-O-isopropylidene-myo-inositol using tosyl imidazole; subsequent conversion of the product into separable camphanate ester derivatives, one leading to a chiral myo-inositol triflate used as a synthetic building block and the other to l-5-O-methyl-myo-inositol [l-(+)-bornesitol] to assign the absolute configuration; the nucleophilic coupling of an alkoxide of a ribose pent-4-ene orthoester unit with a structurally rigid chiral myo-inositol triflate derivative, representing the first sec-sec ether formation between a cyclitol and ribose. Reaction of the coupled product with a silylated nucleobase completes the assembly of the core structure. Further protecting group manipulation, mixed O- and N-phosphorylation, and subsequent removal of all protecting groups in a single step achieves the final product, avoiding a separate N6 protection/deprotection strategy. d-chiro-Inositol adenophostin evoked Ca2+ release through IP3Rs at lower concentrations than adenophostin A, hitherto the most potent known agonist of IP3Rs.
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Affiliation(s)
- Wolfgang Dohle
- Medicinal Chemistry & Drug Discovery
, Department of Pharmacology
, University of Oxford
,
Mansfield Road
, Oxford
, OX1 3QT
, UK
.
; Tel: +44-1865-271945
| | - Xiangdong Su
- Medicinal Chemistry & Drug Discovery
, Department of Pharmacology
, University of Oxford
,
Mansfield Road
, Oxford
, OX1 3QT
, UK
.
; Tel: +44-1865-271945
| | - Stephen J. Mills
- Medicinal Chemistry & Drug Discovery
, Department of Pharmacology
, University of Oxford
,
Mansfield Road
, Oxford
, OX1 3QT
, UK
.
; Tel: +44-1865-271945
| | - Ana M. Rossi
- Department of Pharmacology
, University of Cambridge
,
Tennis Court Road
, Cambridge
, CB2 1PD
, UK
| | - Colin W. Taylor
- Department of Pharmacology
, University of Cambridge
,
Tennis Court Road
, Cambridge
, CB2 1PD
, UK
| | - Barry V. L. Potter
- Medicinal Chemistry & Drug Discovery
, Department of Pharmacology
, University of Oxford
,
Mansfield Road
, Oxford
, OX1 3QT
, UK
.
; Tel: +44-1865-271945
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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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Thomas MP, Mills SJ, Potter BVL. The "Other" Inositols and Their Phosphates: Synthesis, Biology, and Medicine (with Recent Advances in myo-Inositol Chemistry). Angew Chem Int Ed Engl 2016; 55:1614-50. [PMID: 26694856 PMCID: PMC5156312 DOI: 10.1002/anie.201502227] [Citation(s) in RCA: 112] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Indexed: 12/24/2022]
Abstract
Cell signaling via inositol phosphates, in particular via the second messenger myo-inositol 1,4,5-trisphosphate, and phosphoinositides comprises a huge field of biology. Of the nine 1,2,3,4,5,6-cyclohexanehexol isomers, myo-inositol is pre-eminent, with "other" inositols (cis-, epi-, allo-, muco-, neo-, L-chiro-, D-chiro-, and scyllo-) and derivatives rarer or thought not to exist in nature. However, neo- and d-chiro-inositol hexakisphosphates were recently revealed in both terrestrial and aquatic ecosystems, thus highlighting the paucity of knowledge of the origins and potential biological functions of such stereoisomers, a prevalent group of environmental organic phosphates, and their parent inositols. Some "other" inositols are medically relevant, for example, scyllo-inositol (neurodegenerative diseases) and d-chiro-inositol (diabetes). It is timely to consider exploration of the roles and applications of the "other" isomers and their derivatives, likely by exploiting techniques now well developed for the myo series.
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Affiliation(s)
- Mark P Thomas
- Department of Pharmacy & Pharmacology, University of Bath, Claverton Down, Bath, BA2 7AY, UK
| | - Stephen J Mills
- Department of Pharmacy & Pharmacology, University of Bath, Claverton Down, Bath, BA2 7AY, UK
| | - Barry V L Potter
- Department of Pharmacology, University of Oxford, Mansfield Road, Oxford, OX1 3QT, UK.
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Thomas MP, Mills SJ, Potter BVL. Die “anderen” Inositole und ihre Phosphate: Synthese, Biologie und Medizin (sowie jüngste Fortschritte in dermyo-Inositolchemie). Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201502227] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Mark P. Thomas
- Department of Pharmacy & Pharmacology; University of Bath; Claverton Down Bath BA2 7AY Vereinigtes Königreich
| | - Stephen J. Mills
- Department of Pharmacy & Pharmacology; University of Bath; Claverton Down Bath BA2 7AY Vereinigtes Königreich
| | - Barry V. L. Potter
- Department of Pharmacology; University of Oxford; Mansfield Road Oxford OX1 3QT Vereinigtes Königreich
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7
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Synthesis and in vitro anticancer activity evaluation of novel bioreversible phosphate inositol derivatives. Eur J Med Chem 2015; 93:172-81. [DOI: 10.1016/j.ejmech.2015.01.064] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Revised: 12/29/2014] [Accepted: 01/31/2015] [Indexed: 01/13/2023]
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8
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Rankin GM, Maxwell-Cameron I, Painter GF, Larsen DS. The Dimethoxyphenylbenzyl Protecting Group: An Alternative to the p-Methoxybenzyl Group for Protection of Carbohydrates. J Org Chem 2013; 78:5264-72. [DOI: 10.1021/jo4004184] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
| | | | - Gavin F. Painter
- Carbohydrate
Chemistry Team, Callaghan Innovation, PO
Box 31-310, Lower Hutt, New
Zealand
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9
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Vidyasagar A, Pathigoolla A, Sureshan KM. Chemoselective alcoholysis/acetolysis of trans-ketals over cis-ketals and its application in the total synthesis of the cellular second messenger, d-myo-inositol-1,4,5-trisphosphate. Org Biomol Chem 2013; 11:5443-53. [DOI: 10.1039/c3ob40789f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Adiyala Vidyasagar
- School of Chemistry, Indian Institute of Science Education and Research, Thiruvananthapuram 695016, India
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10
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Vibhute AM, Sureshan KM. H2SO4-silica: an eco-friendly heterogeneous catalyst for the differential protection of myo-inositol hydroxyl groups. RSC Adv 2013. [DOI: 10.1039/c3ra40506k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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11
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Rankin GM, Compton BJ, Johnston KA, Hayman CM, Painter GF, Larsen DS. Synthesis and Mass Spectral Characterization of Mycobacterial Phosphatidylinositol and Its Dimannosides. J Org Chem 2012; 77:6743-59. [DOI: 10.1021/jo301189y] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | - Benjamin J. Compton
- Carbohydrate Chemistry Team, Industrial Research Limited, P.O. Box 31310, Lower
Hutt, New Zealand
| | - Karen A. Johnston
- Carbohydrate Chemistry Team, Industrial Research Limited, P.O. Box 31310, Lower
Hutt, New Zealand
| | - Colin M. Hayman
- Carbohydrate Chemistry Team, Industrial Research Limited, P.O. Box 31310, Lower
Hutt, New Zealand
| | - Gavin F. Painter
- Carbohydrate Chemistry Team, Industrial Research Limited, P.O. Box 31310, Lower
Hutt, New Zealand
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12
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13
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Sureshan KM, Murakami T, Watanabe Y. Total syntheses of cyclitol based natural products from myo-inositol: brahol and pinpollitol. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.03.024] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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14
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Schoffers E, Gurung SR, Kohler PR, Rossbach S. Chemical synthesis of scyllo-inosamine and catabolism studies in Sinorhizobium meliloti. Bioorg Med Chem 2008; 16:7838-42. [DOI: 10.1016/j.bmc.2008.06.040] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2008] [Revised: 06/14/2008] [Accepted: 06/20/2008] [Indexed: 11/26/2022]
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15
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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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16
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Moon SC, Echeverría GA, Punte G, Ellena J, Bruno-Blanch LE. Crystal structure and anticonvulsant activity of (±)-1,2:4,5-di-O-isopropylidene-3,6-di-O-(2-propylpentanoyl)-myo-inositol. Carbohydr Res 2007; 342:1456-61. [PMID: 17548067 DOI: 10.1016/j.carres.2007.05.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2006] [Revised: 05/01/2007] [Accepted: 05/02/2007] [Indexed: 10/23/2022]
Abstract
The biological activity and crystal structure of (+/-)-1,2:4,5-di-O-isopropylidene-3,6-di-O-(2-propylpentanoyl)-myo-inositol have been investigated. This compound shows better anticonvulsant activity than valproic acid (VPA) in the MES test as measured in mice. Its structure, determined from single-crystal X-ray diffraction measurements, shows that the inositol ring deviates from the ideal chair conformation and that the two 2-propylpentanoyl groups are located on opposite ring positions. This molecular conformation lets carbonyl and hydroxyl oxygen atoms to be available for hydrogen-bonding interactions, hinders carbonyl carbon atoms, preventing metabolic enzymatic hydrolysis, and helps to rationalize the observed inactive profile in the PTZ test. The anticonvulsant activity profile suggests a mechanism different from that of VPA.
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Affiliation(s)
- Sung C Moon
- Cátedra de Química Medicinal, Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Calle 47 y 115 s/n. B1900AVV, La Plata, Argentina
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17
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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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18
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Maiti KK, Jeon OY, Lee WS, Chung SK. Design, Synthesis, and Delivery Properties of Novel Guanidine-Containing Molecular Transporters Built on Dimeric Inositol Scaffolds. Chemistry 2007; 13:762-75. [PMID: 17086570 DOI: 10.1002/chem.200600898] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
We have developed a novel class of synthetic molecular transporters that contain eight residues of guanidine with an inositol dimer as the scaffold. The dimers were prepared by connecting two units of myo- or scyllo-inositol via a carbonate or amide linkage, and the multiple units of the guanidine functionality were constructed on the inositol scaffold by means of peracylation with omega-aminocarboxylate derivatives of varying length. Bioassays based on confocal laser scanning microscopy and fluorescence-activated cell sorter analyses indicated that these transporters display a varying degree of membrane translocating ability, and the intracellular localization and mouse-tissue distribution studies strongly suggested that these transporters undergo substantially different mechanistic processes from those of peptide transporters reported to date. It was also shown that doxorubicin, an anticancer antibiotic, can be efficiently delivered into mouse brain by aid of this type of transporter.
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Affiliation(s)
- Kaustabh K Maiti
- Department of Chemistry, Division of Molecular and Life Sciences, Pohang University of Science and Technology, Pohang 790-784, Korea
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19
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Salazar-Pereda V, Martínez-Martínez FJ, Contreras R, Flores-Parra A. NMR and X-Ray Diffraction Study of Some Inositol Derivatives. J Carbohydr Chem 2006. [DOI: 10.1080/07328309708005762] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Verónica Salazar-Pereda
- a Departamento de Química , Centre de Investigación y de Estudios Avanzados , del IPN. A.P. 14-740, C.P., 07000, México , D.F
| | - Francisco Javier Martínez-Martínez
- b Departamento de Química , Unidad Profesional Interdisciplinaria de Biotecnología , del IPN. Avenida Acueducto S/N, Barrio la Laguna, Ticomán México, D.F., 07000, México
| | - Rosalinda Contreras
- a Departamento de Química , Centre de Investigación y de Estudios Avanzados , del IPN. A.P. 14-740, C.P., 07000, México , D.F
| | - Angelina Flores-Parra
- a Departamento de Química , Centre de Investigación y de Estudios Avanzados , del IPN. A.P. 14-740, C.P., 07000, México , D.F
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Marecek JF, Prestwich GD. Synthesis of tritium-labelled enantiomers of myo-inositol 1,4,5-trisphosphate. J Labelled Comp Radiopharm 2006. [DOI: 10.1002/jlcr.2580270808] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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21
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Xu Y, Liu XH, Prestwich GD. Synthesis of phosphatase-resistant analogues of phytic acid (InsP6). Tetrahedron Lett 2005. [DOI: 10.1016/j.tetlet.2005.09.175] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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22
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Sureshan KM, Watanabe Y. Solid and solution state conformations of (±)-3-O-acetyl-1,2:4,5-di-O-isopropylidene-allo-inositol and (±)-3-O-acetyl-1,2:4,5-di-O-isopropylidene-6-O-methyl-allo-inositol. Carbohydr Res 2005; 340:2311-8. [PMID: 16095581 DOI: 10.1016/j.carres.2005.07.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2005] [Revised: 07/10/2005] [Accepted: 07/19/2005] [Indexed: 11/21/2022]
Abstract
The synthesis and conformational studies of (+/-)-3-O-acetyl-1,2:4,5-di-O-isopropylidene-allo-inositol and (+/-)-3-O-acetyl-1,2:4,5-di-O-isopropylidene-6-O-methyl-allo-inositol are described. Solid state conformations of the title compounds have been studied by solving their X-ray crystal structures. The inositol ring in both the compounds deviate considerably from the ideal chair conformation to flattened chair conformation in the solid state. Their conformations in solution were studied by the use of 1H NMR spectroscopy. These conformational analyses revealed that the title compounds adopt similar conformations in solid and solution states irrespective of the solvent polarity.
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Affiliation(s)
- Kana M Sureshan
- Department of Applied Chemistry, Faculty of Engineering, Ehime University, Matsuyama 790-8577, Japan.
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23
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Salazar-Pereda V, Martínez-Martínez L, Flores-Parra A, de Jesús Rosales-Hoz M, Ariza-Castolo A, Contreras R. New phenylboronic esters derived from inositol [1]. HETEROATOM CHEMISTRY 2004. [DOI: 10.1002/hc.520050210] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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25
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Sureshan KM, Shashidhar MS, Praveen T, Das T. Regioselective Protection and Deprotection of Inositol Hydroxyl Groups. Chem Rev 2003; 103:4477-503. [PMID: 14611268 DOI: 10.1021/cr0200724] [Citation(s) in RCA: 131] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kana M Sureshan
- Division of Organic Synthesis, National Chemical Laboratory, Pune 411 008, India
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Ravikumar K, Farquhar D. Facile selective cleavage of a myo-inositol trans-isopropylidene acetal in the presence of a cis-isopropylidene acetal. Tetrahedron Lett 2002. [DOI: 10.1016/s0040-4039(01)02382-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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27
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Khersonsky SM, Chang YT. (+/-)-1,2:5,6-Di-O-isopropylidene-myo-inositol and (+/-)-6-O-benzoyl-1,2:4,5-di-O-isopropylidene-myo-inositol: a practical preparation of key intermediates for myo-inositol phosphates. Carbohydr Res 2002; 337:75-8. [PMID: 11755914 DOI: 10.1016/s0008-6215(01)00286-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A simple and practical synthetic procedure for the versatile intermediates, (+/-)-1,2:5,6-di-O-isopropylidene-myo-inositol and (+/-)-6-O-benzoyl-1,2:4,5-di-O-isopropylidene-myo-inositol, is described.
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Affiliation(s)
- Sonya M Khersonsky
- Department of Chemistry, New York University, 100 Washington Square East, New York, NY 10003, USA
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28
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Riley AM, Correa V, Mahon MF, Taylor CW, Potter BV. Bicyclic analogues of D-myo-inositol 1,4,5-trisphosphate related to adenophostin A: synthesis and biological activity. J Med Chem 2001; 44:2108-17. [PMID: 11405648 DOI: 10.1021/jm0005499] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The high affinity of adenophostin A for 1D-myo-inositol 1,4,5-trisphosphate [Ins(1,4,5)P(3)] receptors may be related to an alteration in the position of its 2'-phosphate group relative to the corresponding 1-phosphate group in Ins(1,4,5)P(3). To investigate this possibility, two bicyclic trisphosphates 9 and 10, designed to explore the effect of relocating the 1-phosphate group of Ins(1,4,5)P(3) using a novel fused-ring system, were synthesized from myo-inositol. Biological evaluation of 9 and 10 at the Ins(1,4,5)P(3) receptors of hepatocytes showed that both were recognized by hepatic Ins(1,4,5)P(3) receptors and both stimulated release of Ca(2+) from intracellular stores, but they had lower affinity than Ins(1,4,5)P(3). This finding may be explained by considering the three-dimensional structures of 9 and 10 in light of recent studies on the conformation of adenophostin A.
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MESH Headings
- Adenosine/analogs & derivatives
- Adenosine/chemistry
- Adenosine/pharmacology
- Animals
- Calcium/metabolism
- Calcium Channel Agonists/chemistry
- Calcium Channel Agonists/pharmacology
- Chromatography, Thin Layer
- Crystallography, X-Ray
- Hepatocytes/drug effects
- Hepatocytes/metabolism
- In Vitro Techniques
- Indicators and Reagents
- Inositol 1,4,5-Trisphosphate/analogs & derivatives
- Inositol 1,4,5-Trisphosphate/chemical synthesis
- Inositol 1,4,5-Trisphosphate/pharmacology
- Kinetics
- Liver/drug effects
- Liver/metabolism
- Membranes/drug effects
- Membranes/metabolism
- Models, Molecular
- Molecular Conformation
- Rats
- Spectrophotometry, Ultraviolet
- Stereoisomerism
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Affiliation(s)
- A M Riley
- Wolfson Laboratory of Medicinal Chemistry, Department of Pharmacy and Pharmacology, University of Bath, Claverton Down, Bath BA2 7AY, U.K
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Abstract
Synthesis of six inositol stereoisomers was successfully carried out via conduritol intermediates prepared from myo-inositol. Dihydroxylation and epoxidation followed by ring opening of the conduritol B, C and F derivatives gave epi-, allo-, muco-, neo-, DL-chiro- and scyllo-inositol. The cis-inositol derivative, which may not be prepared by this approach, was synthesized in 5 steps via 2-O-benzoyl-myo-inositol orthoformate as the key intermediate.
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Affiliation(s)
- S K Chung
- Department of Chemistry, Pohang University of Science & Technology, Korea
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Riley AM, Potter BV. Bicyclic analogues of inositol 1,4,5-trisphosphate based upon adenophostin A. Tetrahedron Lett 1999. [DOI: 10.1016/s0040-4039(99)00174-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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31
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Chen J, Prestwich GD. Synthesis of a P-1-tethered photoaffinity label for inositol hexakisphosphate binding proteins. J Labelled Comp Radiopharm 1998. [DOI: 10.1002/(sici)1099-1344(199612)38:12<1113::aid-jlcr925>3.0.co;2-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Ranganathan RS, Fernandez ME, Kang SI, Nunn AD, Ratsep PC, Pillai KM, Zhang X, Tweedle MF. New multimeric magnetic resonance imaging agents. Invest Radiol 1998; 33:779-97. [PMID: 9818313 DOI: 10.1097/00004424-199811000-00002] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
RATIONALE AND OBJECTIVES The authors investigated the effect of multimerization on the relaxivity of macrocyclic gadolinium (Gd) chelates. The objective was to develop more sensitive magnetic resonance imaging (MRI) contrast agents to study biochemical processes. METHODS Covalently linked nonionic, macrocyclic, multimeric lanthanide chelates that belong to the classes of dimers, trimers, tetramers, hexamer, and octamer, in the molecular weight range approximately 1 to 5 KDa, were synthesized. The chemical linkage was based on either the amide bond or the 2-hydroxypropylidene bond. Relaxivity values, 20r1, on Gd3+ chelates and hydration numbers, Q, on Tb3+ chelates were determined. RESULTS Relaxivity values increased with molecular weight and Q values were not affected, the increase in r1 in attributable to the expected increase in the overall rotational correlation time, tau r with an increase in molecular weight. The rigidity of the linkers, which is expected to affect the intrachelate rotational correlation time tau r* that makes a contribution to the overall correlation time, tau r, exerted a noticeable effect. The hydroxyl-based chelates generally had lower r1 values than the amide-based chelates. This is rationalized as arising from the longer and thereby rate-limiting effect of the tau m value for the hydroxyl chelates compared with that reported of the amide-based chelates. This rate limiting effect of tau m becomes a dominant factor controlling attainable enhanced relaxivity when multimers based on traditional chelate designs are used for MRI applications. CONCLUSIONS Approaches aimed at enhancing relaxivity by modulating the water relaxation time, tau m, will be important for the future development of functional MRI contrast agents for the imaging of biochemical processes.
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Fluorescent molecular rotors with specific hydrophilic functions: Glucosamine and inositol derivatives. J Fluoresc 1998. [DOI: 10.1007/bf02758237] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Liu C, Potter BV. Synthesis of 3-Position-Modified Analogues of myo-Inositol 1,4,5-Trisphosphate, Tools for Investigation of the Polyphosphoinositide Pathway of Cellular Signaling. J Org Chem 1997; 62:8335-40. [PMID: 11671970 DOI: 10.1021/jo970926y] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Methods for the synthesis of 3-O-(carboxymethyl)- and 3-O-alkylated myo-inositol 1,4,5-trisphosphates in racemic form from myo-inositol have been devised. For DL-3-O-(carboxymethyl)-myo-inositol 1,4,5-trisphosphate, an analogue of myo-inositol 1,3,4,5-tetrakisphosphate, DL-3-O-allyl-2,6-di-O-benzyl-1-O-(p-methoxybenzyl)-4,5-O-isopropylidene-myo-inositol (14) was prepared from myo-inositol in seven steps. The triol DL-3-O-allyl-2,6-di-O-benzyl-myo-inositol (26), which was obtained after treatment of 14 with acid, was phosphitylated and the product oxidized to give the fully protected trisphosphate 27. The efficient oxidative cleavage of the 3-O-allyl ether of 27 in the presence of the cyanoethyl-protected phosphate triesters was achieved by treatment of 27 with NaIO(4)/RuCl(3).hydrate to afford the fully protected 3-O-(carboxymethyl) trisphosphate 28. After deblocking, DL-3-O-(carboxymethyl) trisphosphate 6 was obtained. For DL-3-O-alkylated myo-inositol 1,4,5-trisphosphate analogues, the fully protected 14 was isomerized to the cis-prop-1-enyl derivative 15. The propenyl group was removed to give DL-2,6-di-O-benzyl-1-O-(p-methoxybenzyl)-4,5-isopropylidene-myo-inositol (16). The 3-O-methyl ether 17, 3-O-ethyl ether 18, and 3-O-n-propyl ether 19 derivatives were synthesized by treatment of the anion of 16 with methyl iodide, ethyl iodide, or n-propyl iodide, respectively. Removal of the isopropylidene and p-methoxybenzyl groups afforded 3-O-alkylated triols 20, 21, or 22, which were phosphitylated and the products oxidized to give the respective fully protected 3-O-alkylated trisphosphates 23-25. Deprotection furnished 3-O-methyl- (3), 3-O-ethyl- (4), or 3-O-n-propyl-myo-inositol 1,4,5-trisphosphate (5). These compounds will be useful pharmacological tools to explore the interaction of myo-inositol 1,4,5-trisphosphate with its receptor and metabolic enzymes.
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Affiliation(s)
- C Liu
- Department of Medicinal Chemistry, School of Pharmacy and Pharmacology, University of Bath, Claverton Down, Bath BA2 7AY, U.K
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Rukavishnikov AV, Zaikova TO, Griffith OH, Keana JF. Improved synthesis of myo-inositol 1-(4-nitrophenyl hydrogen phosphate), a chromogenic substrate for phosphatidylinositol-specific phospholipase C. Chem Phys Lipids 1997; 89:153-7. [PMID: 9369010 DOI: 10.1016/s0009-3084(97)00069-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- A V Rukavishnikov
- Department of Chemistry, University of Oregon, Eugene 97403-1229, USA
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Kim KS, Cho SJ, Oh KS, Son JS, Kim J, Lee JY, Lee SJ, Lee S, Chang YT, Chung SK, Ha TK, Lee BS, Lee I. Theoretical Studies of Regioselectivity of myo-Inositol Derivatives: Importance of Solvent Dielectric Constants. J Phys Chem A 1997. [DOI: 10.1021/jp9633097] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kwang S. Kim
- Department of Chemistry, Center for Biofunctional Molecules, Pohang University of Science and Technology, San 31, Hyojadong, Namgu, Pohang 790-784, Korea, Laboratory of Physical Chemistry, Swiss Federal Institute of Technology, CH-8092, Switzerland, and Department of Chemistry, Inha University, Inchon, 402-751, Korea
| | - Seung Joo Cho
- Department of Chemistry, Center for Biofunctional Molecules, Pohang University of Science and Technology, San 31, Hyojadong, Namgu, Pohang 790-784, Korea, Laboratory of Physical Chemistry, Swiss Federal Institute of Technology, CH-8092, Switzerland, and Department of Chemistry, Inha University, Inchon, 402-751, Korea
| | - Kyung Seok Oh
- Department of Chemistry, Center for Biofunctional Molecules, Pohang University of Science and Technology, San 31, Hyojadong, Namgu, Pohang 790-784, Korea, Laboratory of Physical Chemistry, Swiss Federal Institute of Technology, CH-8092, Switzerland, and Department of Chemistry, Inha University, Inchon, 402-751, Korea
| | - Jong Soo Son
- Department of Chemistry, Center for Biofunctional Molecules, Pohang University of Science and Technology, San 31, Hyojadong, Namgu, Pohang 790-784, Korea, Laboratory of Physical Chemistry, Swiss Federal Institute of Technology, CH-8092, Switzerland, and Department of Chemistry, Inha University, Inchon, 402-751, Korea
| | - Jongseob Kim
- Department of Chemistry, Center for Biofunctional Molecules, Pohang University of Science and Technology, San 31, Hyojadong, Namgu, Pohang 790-784, Korea, Laboratory of Physical Chemistry, Swiss Federal Institute of Technology, CH-8092, Switzerland, and Department of Chemistry, Inha University, Inchon, 402-751, Korea
| | - Jin Yong Lee
- Department of Chemistry, Center for Biofunctional Molecules, Pohang University of Science and Technology, San 31, Hyojadong, Namgu, Pohang 790-784, Korea, Laboratory of Physical Chemistry, Swiss Federal Institute of Technology, CH-8092, Switzerland, and Department of Chemistry, Inha University, Inchon, 402-751, Korea
| | - Sang Joo Lee
- Department of Chemistry, Center for Biofunctional Molecules, Pohang University of Science and Technology, San 31, Hyojadong, Namgu, Pohang 790-784, Korea, Laboratory of Physical Chemistry, Swiss Federal Institute of Technology, CH-8092, Switzerland, and Department of Chemistry, Inha University, Inchon, 402-751, Korea
| | - Sik Lee
- Department of Chemistry, Center for Biofunctional Molecules, Pohang University of Science and Technology, San 31, Hyojadong, Namgu, Pohang 790-784, Korea, Laboratory of Physical Chemistry, Swiss Federal Institute of Technology, CH-8092, Switzerland, and Department of Chemistry, Inha University, Inchon, 402-751, Korea
| | - Young-Tae Chang
- Department of Chemistry, Center for Biofunctional Molecules, Pohang University of Science and Technology, San 31, Hyojadong, Namgu, Pohang 790-784, Korea, Laboratory of Physical Chemistry, Swiss Federal Institute of Technology, CH-8092, Switzerland, and Department of Chemistry, Inha University, Inchon, 402-751, Korea
| | - Sung-Kee Chung
- Department of Chemistry, Center for Biofunctional Molecules, Pohang University of Science and Technology, San 31, Hyojadong, Namgu, Pohang 790-784, Korea, Laboratory of Physical Chemistry, Swiss Federal Institute of Technology, CH-8092, Switzerland, and Department of Chemistry, Inha University, Inchon, 402-751, Korea
| | - Tae-Kyu Ha
- Department of Chemistry, Center for Biofunctional Molecules, Pohang University of Science and Technology, San 31, Hyojadong, Namgu, Pohang 790-784, Korea, Laboratory of Physical Chemistry, Swiss Federal Institute of Technology, CH-8092, Switzerland, and Department of Chemistry, Inha University, Inchon, 402-751, Korea
| | - Bon-Su Lee
- Department of Chemistry, Center for Biofunctional Molecules, Pohang University of Science and Technology, San 31, Hyojadong, Namgu, Pohang 790-784, Korea, Laboratory of Physical Chemistry, Swiss Federal Institute of Technology, CH-8092, Switzerland, and Department of Chemistry, Inha University, Inchon, 402-751, Korea
| | - I. Lee
- Department of Chemistry, Center for Biofunctional Molecules, Pohang University of Science and Technology, San 31, Hyojadong, Namgu, Pohang 790-784, Korea, Laboratory of Physical Chemistry, Swiss Federal Institute of Technology, CH-8092, Switzerland, and Department of Chemistry, Inha University, Inchon, 402-751, Korea
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Synthesis and pharmacological activity ofmyo-inositol derivatives with nicotinic and γ-aminobutyric acids. Pharm Chem J 1996. [DOI: 10.1007/bf02219682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Yu J, Spencer JB. Stereoselective Deoxygenation of myo-Inositol Monotosylates with Lithium Triethylborohydride. J Org Chem 1996. [DOI: 10.1021/jo960413b] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jinquan Yu
- University Chemical Laboratory, Lensfield Road, Cambridge CB2 1EW, U.K
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Desai T, Gigg J, Gigg R. Cyclic carbonates as protecting groups in cyclitol chemistry. Carbohydr Res 1995. [DOI: 10.1016/0008-6215(95)00313-i] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Potter BVL, Lampe D. Die Chemie der Inositlipid-vermittelten zellulären Signalübertragung. Angew Chem Int Ed Engl 1995. [DOI: 10.1002/ange.19951071804] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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41
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Selective Reactions and Total Synthesis of Inositol Phosphates. ACTA ACUST UNITED AC 1995. [DOI: 10.1016/s1572-5995(96)80031-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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Liu C, Potter BV. Synthesis of (±)-3-O-alkylated Myo-inositol 1,4,5-trisphosphate analogues as potent receptor ligands and enzyme inhibitors. Tetrahedron Lett 1994. [DOI: 10.1016/s0040-4039(00)74432-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Schnetz-Boutaud N, Spiess B, Schlewer G. Synthesis of (±) 3,6-di-O-benzyl-2-myo-inosose 1,4,5-tri-O-dibenzylphosphate as potential intermediate for the preparation of tritium-labelled myo-inositol 1,4,5-triphosphate. Carbohydr Res 1994. [DOI: 10.1016/0008-6215(94)84204-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Regioselective functionalizations and conformational studies of di-O-isopropylidene-myo-inositol derivatives. Carbohydr Res 1994. [DOI: 10.1016/0008-6215(94)84082-2] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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46
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Desai T, Gigg J, Gigg R, Martín-Zamora E, Schnetz N. The synthesis and resolution of (±)-1,4-diO-benzyl-2,3-O-isopropylidene-myo-inositol. Carbohydr Res 1994. [DOI: 10.1016/0008-6215(94)84081-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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47
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Liu C, Potter B. Synthesis of myo-inositol 1,4,5-trisphosphate 3-phosphorothioate as an inhibitor of myo-inositol 1,3,4,5-tetrakisphosphate 3-phosphatase. Tetrahedron Lett 1994. [DOI: 10.1016/s0040-4039(00)76770-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Young RC, Downes CP, Jones M, Milliner KJ, Rana KK, Ward JG. Inhibition of human erythrocyte membrane phosphatidylinositol 4-kinase by phospholipid analogues. Eur J Med Chem 1994. [DOI: 10.1016/0223-5234(94)90146-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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49
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Mills SJ, Al-Hafidh J, Westwick J, Potter BV. Myo-inositol 1,4,6-trisphosphate: A new synthetic Ca2+-mobilising inositol phosphate. Bioorg Med Chem Lett 1993. [DOI: 10.1016/s0960-894x(01)80723-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Gracheva IN, Orekhova EM, Klyashchitskii BA, Kopelevich VM, Tishkin VS, Stepanov AE, Shvets VI. Synthesis of complex esters of myoinositol and analysis of their antiischemic activity. Pharm Chem J 1993. [DOI: 10.1007/bf00779916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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