101
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Vale JR, Siopa F, Branco PS, Afonso CAM. Ring Opening of 6-Azabicyclo[3.1.0]hex-3-en-2-ols in Water under Mild Conditions. European J Org Chem 2016. [DOI: 10.1002/ejoc.201501468] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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102
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Vidyasagar A, Sureshan KM. Total syntheses of five uvacalols: structural validation of uvacalol A, uvacalol B and uvacalol C and disproval of the structures of uvacalol E and uvacalol G. Org Biomol Chem 2015; 13:3900-10. [PMID: 25655990 DOI: 10.1039/c4ob02663b] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Uvacalols are novel carbasugars belonging to the family of C7-cyclitols, and are isolated from the roots of the medicinal plant, Uvaria calamistrata. In this study, we report the first syntheses of five uvacalols starting from a cheap and easily available chiral pool starting material, D-mannitol, in their optically pure form. D-Mannitol was converted to the alkene 2 through a series of regioselective and chemoselective transformations by following our previously reported strategies. Alkene 2 was converted to the enal 5 through a series of protective group manipulations. Enal 5 was converted to the diene 6 by the addition of vinyl magnesium bromide. Ring closing metathesis of the diene 6 using Grubbs’ second generation catalyst installed the core cyclohexenyl unit. Through several iterative and selective manipulations of various hydroxyl groups, uvacalol A, uvacalol B, uvacalol C, uvacalol E and uvacalol G were synthesized. A comparison of the (1)H NMR and (13)C NMR data of these synthesized molecules with the reported data, revealed that the reported structures of uvacalols A–C are correct and those of uvacalols E and G are wrong.
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Affiliation(s)
- Adiyala Vidyasagar
- School of Chemistry, Indian Institute of Science Education and Research, Thiruvananthapuram 695016, India.
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103
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Das S, Panda A, Pal S. A common and versatile synthetic route to (-) and (+) pentenomycin I, (+) halopentenomycin I and dehydropentenomycin. Carbohydr Res 2015; 416:24-31. [PMID: 26342153 DOI: 10.1016/j.carres.2015.08.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Revised: 06/09/2015] [Accepted: 08/12/2015] [Indexed: 10/23/2022]
Abstract
A versatile and stereoselective total synthesis of (+) and (-) pentenomycin I, (+) halopentenomycins I and dehydropentenomycin from a common chiral polyhydroxylated cyclopentene through oxidation and protection/deprotection has been described. Stereoselective hydroxymethylation, stereoselective Grignard reaction and ring closing metathesis are the key features of our approach.
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Affiliation(s)
- Sulagna Das
- Indian Institute of Technology Bhubaneswar, School of Basic Sciences, Bhubaneswar, Orissa 751007, India
| | - Amarendra Panda
- Indian Institute of Technology Bhubaneswar, School of Basic Sciences, Bhubaneswar, Orissa 751007, India
| | - Shantanu Pal
- Indian Institute of Technology Bhubaneswar, School of Basic Sciences, Bhubaneswar, Orissa 751007, India.
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104
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Kim S, Hong JH. Synthesis and Biological Evaluation of 9-Deazaadenine 5'-Deoxy-6',6'-Difluoro-Carbocyclic C-Nucleoside Phosphonic Acid Derivatives. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2015; 34:708-28. [PMID: 26467263 DOI: 10.1080/15257770.2015.1071847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
The first synthetic route to 5'-deoxy-6',6'-difluoro-carbocyclic C-nucleoside [9-deazaadenosine, (pyrrolo[3,2-d]pyrimidine)] phosphonic acids from commercially available epichlorohydrin 5 was described. The key C-C bond formation from cyclopentanone to base precursor was performed using the Knoevenagel-type condensation. Synthesized C-nucleoside phosphonic acids were tested for anti-HIV and anti-leukemic activities. They showed moderate cytotoxicity-derived anti-HIV and anti-leukemic activities.
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Affiliation(s)
- Seyeon Kim
- a BK21-Project Team, College of Pharmacy, Chosun University , Kwangju , South Korea
| | - Joon Hee Hong
- a BK21-Project Team, College of Pharmacy, Chosun University , Kwangju , South Korea
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105
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Li W, Niu Y, Xiong DC, Cao X, Ye XS. Highly Substituted Cyclopentane-CMP Conjugates as Potent Sialyltransferase Inhibitors. J Med Chem 2015; 58:7972-90. [PMID: 26406919 DOI: 10.1021/acs.jmedchem.5b01181] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Sialylconjugates on cell surfaces are involved in many biological events such as cellular recognition, signal transduction, and immune response. It has been reported that aberrant sialylation at the nonreducing end of glycoconjugates and overexpression of sialyltransferases (STs) in cells are correlated with the malignance, invasion, and metastasis of tumors. Therefore, inhibitors of STs would provide valuable leads for the discovery of antitumor drugs. On the basis of the transition state of the enzyme-catalyzed sialylation reaction, we proposed that the cyclopentane skeleton in its two puckered conformations might mimic the planar structure of the donor (CMP-Neu5Ac) in the transition state. A series of cyclopentane-containing compounds were designed and synthesized by coupling different cyclopentane α-hydroxyphosphonates with cytidine phosphoramidite. Their inhibitory activities against recombinant human ST6Gal-I were assayed, and a potent inhibitor 48l with a Ki of 0.028 ± 0.006 μM was identified. The results show that the cyclopentanoid-type compounds could become a new type of sialyltransferase inhibitors as biological probes or drug leads.
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Affiliation(s)
- Wenming Li
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, and Center for Molecular and Translational Medicine, Peking University , Xue Yuan Road No. 38, Beijing 100191, China
| | - Youhong Niu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, and Center for Molecular and Translational Medicine, Peking University , Xue Yuan Road No. 38, Beijing 100191, China.,State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University , Lanzhou 730000, China
| | - De-Cai Xiong
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, and Center for Molecular and Translational Medicine, Peking University , Xue Yuan Road No. 38, Beijing 100191, China
| | - Xiaoping Cao
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University , Lanzhou 730000, China
| | - Xin-Shan Ye
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, and Center for Molecular and Translational Medicine, Peking University , Xue Yuan Road No. 38, Beijing 100191, China
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106
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Kim E, Hong JH. Synthesis and potent anti-leukemic activity of novel 5'-deoxycarbocyclic C-nucleoside phosphonic acids. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2015; 34:737-52. [PMID: 26398671 DOI: 10.1080/15257770.2015.1072636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The first synthetic route to 5'-deoxycarbocyclic C-nucleoside [9-deazaadenosine, (pyrrolo[3,2-d]pyrimidine)] phosphonic acids from commercially available 1,4-dihydroxy-2-butene was described. The key C-C bond formation from cyclopentanone to base precursor was performed using Knoevenagel-type condensation. Synthesized C-nucleoside phosphonic acids were tested for anti-HIV activity as well as anti-leukemic activity. They showed moderate cytotoxicity derived anti-HIV activity and anti-leukemic activity.
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Affiliation(s)
- Eunae Kim
- a BK21-Project Team, College of Pharmacy, Chosun University , Kwangju , Republic of Korea
| | - Joon Hee Hong
- a BK21-Project Team, College of Pharmacy, Chosun University , Kwangju , Republic of Korea
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107
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Shinde MV, Ople RS, Sangtani E, Gonnade R, Reddy DS. Synthesis of novel N-cyclopentenyl-lactams using the Aubé reaction. Beilstein J Org Chem 2015. [PMID: 26199661 PMCID: PMC4505090 DOI: 10.3762/bjoc.11.119] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
A novel and convenient method utilizing the Aubé reaction to access a new class of compounds that are similar to carbocyclic nucleosides is reported. The azido alcohol derived from Vince lactam undergoes the Aubé reaction with various cyclic ketones to give cyclopentenyl-substituted lactams. Upon dihydroxylation, this affords the N-cyclopentenyl-lactam compounds in racemic form. Given the numerous uses of nucleosides and related compounds, we were interested in the synthesis of carbocylic nucleoside mimics. The attempts and results are described herein.
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Affiliation(s)
- Madhuri V Shinde
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, 411008, India
| | - Rohini S Ople
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, 411008, India
| | - Ekta Sangtani
- Center for Material Characterization, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, 411008, India
| | - Rajesh Gonnade
- Center for Material Characterization, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, 411008, India
| | - D Srinivasa Reddy
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, 411008, India
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108
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Kim S, Kim E, Hong JH. The first synthesis of 4'-branched 5'-deoxycarbocyclic 9-deazaadenosine and phosphonic acids as antiviral agents. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2015; 34:163-79. [PMID: 25710354 DOI: 10.1080/15257770.2014.975245] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The first synthetic route to 4'-trifluoromethylated 5'-deoxycarbocyclic-9-deazaadenosine analog and its phosphonic acid derivatives was described from α-trifluoromethyl-α,β-unsaturated ester. The C-C bond connection between cyclopentane and base moiety was accomplished using Knoevenagel type condensation from ketone derivative 11. Synthesized nucleoside and phosphonic acid analogs were tested for anti-HIV activity as well as cytotoxicity.
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Affiliation(s)
- Seyeon Kim
- a BK21-project team, College of Pharmacy, Chosun University , Kwangju , Republic of Korea
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109
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Miki K, Kimura A, Inoue T, Matsuoka H, Harada H, Hiraoka M, Ohe K. Synthesis of Biocompatible Polysaccharide Analogues and Their Application to In Vivo Optical Tumor Imaging. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2015. [DOI: 10.1246/bcsj.20150038] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Koji Miki
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University
| | - Akinori Kimura
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University
| | - Tatsuhiro Inoue
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University
| | - Hideki Matsuoka
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University
| | - Hiroshi Harada
- Department of Radiation Oncology and Image-applied Therapy, Graduate School of Medicine, Kyoto University
- Precursory Research for Embryonic Science and Technology (PRESTO), Japan Science and Technology Agency (JST)
| | - Masahiro Hiraoka
- Department of Radiation Oncology and Image-applied Therapy, Graduate School of Medicine, Kyoto University
| | - Kouichi Ohe
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University
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110
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Jana M, MacKerell AD. CHARMM Drude Polarizable Force Field for Aldopentofuranoses and Methyl-aldopentofuranosides. J Phys Chem B 2015; 119:7846-59. [PMID: 26018564 DOI: 10.1021/acs.jpcb.5b01767] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
An empirical all-atom CHARMM polarizable force filed for aldopentofuranoses and methyl-aldopentofuranosides based on the classical Drude oscillator is presented. A single electrostatic model is developed for eight different diastereoisomers of aldopentofuranoses by optimizing the existing electrostatic and bonded parameters as transferred from ethers, alcohols, and hexopyranoses to reproduce quantum mechanical (QM) dipole moments, furanose-water interaction energies and conformational energies. Optimization of selected electrostatic and dihedral parameters was performed to generate a model for methyl-aldopentofuranosides. Accuracy of the model was tested by reproducing experimental data for crystal intramolecular geometries and lattice unit cell parameters, aqueous phase densities, and ring pucker and exocyclic rotamer populations as obtained from NMR experiments. In most cases the model is found to reproduce both QM data and experimental observables in an excellent manner, whereas for the remainder the level of agreement is in the satisfactory regimen. In aqueous phase simulations the monosaccharides have significantly enhanced dipoles as compared to the gas phase. The final model from this study is transferrable for future studies on carbohydrates and can be used with the existing CHARMM Drude polarizable force field for biomolecules.
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Affiliation(s)
- Madhurima Jana
- †Department of Pharmaceutical Sciences, University of Maryland, 20 Penn Street HSF II, Baltimore, Maryland 21201, United States.,‡Department of Chemistry, National Institute of Technology Rourkela, Rourkela 769008, Odisha, India
| | - Alexander D MacKerell
- †Department of Pharmaceutical Sciences, University of Maryland, 20 Penn Street HSF II, Baltimore, Maryland 21201, United States
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111
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Trapero A, Egido-Gabás M, Bujons J, Llebaria A. Synthesis and evaluation of hydroxymethylaminocyclitols as glycosidase inhibitors. J Org Chem 2015; 80:3512-29. [PMID: 25750987 DOI: 10.1021/acs.joc.5b00133] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Four series of C7N aminocyclitol analogues of glucose were synthesized by stereocontrolled epoxide opening of hydroxyl protected forms of the cyclohexane epoxides cyclophellitol and 1,6-epi-cyclophellitol. The resulting hydroxymethyl substituted aminocyclitols were tested as glycosidase inhibitors. Cyclitols having an amino group in an α configuration at a position equivalent to the anomeric in the sugar were found to be low micromolar inhibitors of the α-glucosidase from baker's yeast with Ki's near to 2 μM. On the other hand, N-octyl aminocyclitols having the nitrogen substituents in an α or β configuration were found to be good inhibitors of recombinant β-glucocerebrosidase with Ki values between 8.3 and 17 μM, and also inhibited lysosomal β-glucosidase activity in live cells at low-micromolar concentrations. A computational docking study suggests a differential binding among the different series of β-glucocerebrosidase inhibitors. In agreement with the experimental results, the binding poses obtained indicate that the presence of an alkyl lipid substituent in the inhibitor mimicking one of the lipid chains in the substrate is critical for potency. In contrast, the matching of hydroxymethyl substituents in the aminocyclitols and the parent glucosylceramide does not seem to be strictly necessary for potent inhibition, indicating the risk of simplifying structural analogies in sugar mimetic design.
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Affiliation(s)
- Ana Trapero
- †Laboratory of Medicinal Chemistry, Department of Biomedicinal Chemistry, Institut de Química Avançada de Catalunya (IQAC-CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Meritxell Egido-Gabás
- ‡Department of Biomedicinal Chemistry, Institut de Química Avançada de Catalunya (IQAC-CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Jordi Bujons
- §Department of Biological Chemistry and Molecular Modeling, Institut de Química Avançada de Catalunya (IQAC-CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Amadeu Llebaria
- †Laboratory of Medicinal Chemistry, Department of Biomedicinal Chemistry, Institut de Química Avançada de Catalunya (IQAC-CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain
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112
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Synthesis and biological evaluation of carbocyclic analogues of pachastrissamine. Mar Drugs 2015; 13:824-37. [PMID: 25654428 PMCID: PMC4344604 DOI: 10.3390/md13020824] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Revised: 01/20/2015] [Accepted: 01/26/2015] [Indexed: 12/22/2022] Open
Abstract
A series of carbocyclic analogues of naturally-occurring marine sphingolipid pachastrissamine were prepared and biologically evaluated. The analogues were efficiently synthesized via a tandem enyne/diene-ene metathesis reaction as a key step. We found that the analogue 4b exhibited comparable cytotoxicity and more potent inhibitory activity against sphingosine kinases, compared to pachastrissamine. Molecular modeling studies were conducted to provide more detailed insight into the binding mode of 4b in sphingosine kinase. In our docking model, pachastrissamine and 4b were able to effectively bind to the binding pocket of sphingosine kinase 1 as co-crystalized sphingosine. However, 4b showed a hydrophobic interaction with Phe192, which suggests that it contributes to its increased inhibitory activity against sphingosine kinase 1.
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113
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Shing TKM, Cheng HM. Intramolecular direct aldol reactions of sugar 2,7-diketones: syntheses of hydroxylated cycloalka(e)nones. Org Biomol Chem 2015; 13:4795-802. [DOI: 10.1039/c5ob00253b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A regio- and stereoselective intramolecular direct aldol reaction of 2,7-diketones derived from carbohydrates has been developed to construct cycloalkanones 7, which were dehydrated to obtain heavily oxygenated cycloalkenones 8.
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Affiliation(s)
- Tony K. M. Shing
- Department of Chemistry and Center of Novel Functional Molecules
- The Chinese University of Hong Kong
- Shatin
- Hong Kong, China
| | - Hau M. Cheng
- Department of Chemistry and Center of Novel Functional Molecules
- The Chinese University of Hong Kong
- Shatin
- Hong Kong, China
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114
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Panda A, Islam S, Santra MK, Pal S. Lead tetraacetate mediated one pot oxidative cleavage and acetylation reaction: an approach to apio and homologated apio pyrimidine nucleosides and their anticancer activity. RSC Adv 2015. [DOI: 10.1039/c5ra19080k] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
An efficient and versatile strategy towards apio and homologated apio pyrimidines has been described via one pot oxidative cleavage and acetylation using Pb(OAc)4.
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Affiliation(s)
- Amarendra Panda
- School of Basic Sciences Indian Institute of Technology Bhubaneswar
- Bhubaneswar
- India
| | - Sehbanul Islam
- Cancer Biology Laboratory
- National Centre for Cell Science
- Pune
- India
| | | | - Shantanu Pal
- School of Basic Sciences Indian Institute of Technology Bhubaneswar
- Bhubaneswar
- India
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115
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Lo Fiego MJ, Marino C, Varela O. Synthesis of galactofuranosyl-(1 → 5)-thiodisaccharide glycomimetics as inhibitors of a β-d-galactofuranosidase. RSC Adv 2015. [DOI: 10.1039/c5ra06899a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Description of the synthesis, molecular modeling and inhibitory properties of furanosyl thiodisaccharides that are mimetics of the motif β-d-Galf-(1 → 5)-d-Galf, found in glycoconjugates of pathogenic microorganisms.
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Affiliation(s)
- Marcos J. Lo Fiego
- CIHIDECAR-CONICET-UBA
- Departamento de Química Orgánica
- Facultad de Ciencias Exactas y Naturales
- Universidad de Buenos Aires
- Argentina
| | - Carla Marino
- CIHIDECAR-CONICET-UBA
- Departamento de Química Orgánica
- Facultad de Ciencias Exactas y Naturales
- Universidad de Buenos Aires
- Argentina
| | - Oscar Varela
- CIHIDECAR-CONICET-UBA
- Departamento de Química Orgánica
- Facultad de Ciencias Exactas y Naturales
- Universidad de Buenos Aires
- Argentina
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116
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Hamon N, Slusarczyk M, Serpi M, Balzarini J, McGuigan C. Synthesis and biological evaluation of phosphoramidate prodrugs of two analogues of 2-deoxy-d-ribose-1-phosphate directed to the discovery of two carbasugars as new potential anti-HIV leads. Bioorg Med Chem 2014; 23:829-38. [PMID: 25616343 PMCID: PMC7127161 DOI: 10.1016/j.bmc.2014.12.039] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Revised: 12/12/2014] [Accepted: 12/17/2014] [Indexed: 11/22/2022]
Abstract
2-Deoxy-α-d-ribose-1-phosphate is of great interest as it is involved in the biosynthesis and/or catabolic degradation of several nucleoside analogues of biological and therapeutic relevance. However due to the lack of a stabilising group at its 2-position, it is difficult to synthesize stable prodrugs of this compound. In order to overcome this lack of stability, the synthesis of carbasugar analogues of 2-deoxyribose-1-phosphate was envisioned. Herein the preparation of a series of prodrugs of two carbocyclic analogues of 2-deoxyribose-1-phosphate using the phosphoramidate ProTide technology, along with their biological evaluation against HIV and cancer cell proliferation, is reported.
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Affiliation(s)
- Nadège Hamon
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Cardiff, King Edward VII Avenue, Cardiff CF10 3NB, UK
| | - Magdalena Slusarczyk
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Cardiff, King Edward VII Avenue, Cardiff CF10 3NB, UK
| | - Michaela Serpi
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Cardiff, King Edward VII Avenue, Cardiff CF10 3NB, UK
| | - Jan Balzarini
- Rega Institute for Medical Research, KU Leuven, B-3000 Leuven, Belgium
| | - Christopher McGuigan
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Cardiff, King Edward VII Avenue, Cardiff CF10 3NB, UK.
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117
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Moschitto MJ, Vaccarello DN, Lewis CA. Regiodivergent addition of phenols to allylic oxides: control of 1,2- and 1,4-additions for cyclitol synthesis. Angew Chem Int Ed Engl 2014; 54:2142-5. [PMID: 25533617 DOI: 10.1002/anie.201410228] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2014] [Indexed: 11/05/2022]
Abstract
Control of 1,2- and 1,4-addition of substituted phenols to allylic oxides is achieved by intercepting palladium π-allyl complexes. The interconversion of palladium complexes results in the total synthesis of MK 7607, cyathiformine B type, streptol, and a new cyclitol.
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Affiliation(s)
- Matthew J Moschitto
- Department of Chemistry and Chemical Biology, Cornell University, 259 East Ave., Ithaca, NY 14853 (USA)
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118
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Moschitto MJ, Vaccarello DN, Lewis CA. Regiodivergent Addition of Phenols to Allylic Oxides: Control of 1,2- and 1,4-Additions for Cyclitol Synthesis. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201410228] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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119
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Kang B, Sutou T, Wang Y, Kuwano S, Yamaoka Y, Takasu K, Yamada KI. N-Heterocyclic Carbene-Catalyzed Benzoin Strategy for Divergent Synthesis of Cyclitol Derivatives from Alditols. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201400712] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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120
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Aydin G, Ally K, Aktaş F, Şahin E, Baran A, Balci M. Synthesis and α-Glucosidase and α-Amylase Inhibitory Activity Evaluation of Azido- and Aminocyclitols. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402762] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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121
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Stereospecific synthesis of highly substituted novel carbasugar as carbonic anhydrase inhibitors: decahydronaphthalene-1,2,3,4,5,6,7-heptol. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.05.101] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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122
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Synthesis of branched carbasugars via photooxygenation and manganese(III) acetate free radical cyclization. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.05.069] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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123
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Okamoto K, Tamura E, Ohe K. Stereoselective Construction of 1,3-Disilylcyclopentane Derivatives by Scandium-Catalyzed [3+2] Cycloaddition of Allylsilanes to β-Silylenones. Angew Chem Int Ed Engl 2014; 53:10195-9. [DOI: 10.1002/anie.201404218] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2014] [Revised: 05/23/2014] [Indexed: 12/20/2022]
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124
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Okamoto K, Tamura E, Ohe K. Stereoselective Construction of 1,3-Disilylcyclopentane Derivatives by Scandium-Catalyzed [3+2] Cycloaddition of Allylsilanes to β-Silylenones. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201404218] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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125
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Sharma GVM, Chary DH. Synthesis ofcis-Fused Bicyclic Systems by Radical Cyclization Approach: Formal Synthesis of Ethisolide andiso-Avenaciolide. SYNTHETIC COMMUN 2014. [DOI: 10.1080/00397911.2013.871562] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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126
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Stockton KP, Greatrex BW, Taylor DK. Synthesis of allo- and epi-inositol via the NHC-catalyzed carbocyclization of carbohydrate-derived dialdehydes. J Org Chem 2014; 79:5088-96. [PMID: 24749948 DOI: 10.1021/jo500645z] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
A synthesis of carbocyclic sugars from carbohydrate-derived dialdehydes using organocatalysis has been developed. Sorbitol, mannitol, and galactitol were converted via 1,6-tritylation, perbenzylation or permethylation, detritylation, and Swern oxidation into 2,3,4,5-tetra-O-alkyl-dialdoses that were cyclized via the benzoin reaction promoted by a triazolium carbene. Manno- and galacto-configured dialdehydes gave predominantly single inosose stereoisomers in up to 75% yield if the mixture was acetylated prior to isolation while the gluco-dialdehyde afforded a mixture of three stereoisomers in 61% overall yield. The inososes were stereospecifically reduced using sodium borohydride and then deprotected to give allo- and epi-inositol in good yield that confirmed the structural and stereochemical assignments.
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Affiliation(s)
- Kieran P Stockton
- School of Science and Technology, University of New England , Armidale, New South Wales 2351, Australia
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127
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El Bkassiny S, N'Go I, Sevrain CM, Tikad A, Vincent SP. Synthesis of a novel UDP-carbasugar as UDP-galactopyranose mutase inhibitor. Org Lett 2014; 16:2462-5. [PMID: 24746099 DOI: 10.1021/ol500848q] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The multistep synthesis of a novel UDP-C-cyclohexene, designed as a high energy intermediate analogue of the UDP-galactopyranose mutase (UGM) catalyzed isomerization reaction, is reported. The synthesis of the central carbasugar involved the preparation of a galactitol derivative bearing two olefins necessary for the construction of the cyclohexene ring by a ring-closing metathesis as a key step. Further successive phosphonylation, deprotection, and UMP coupling provided the target molecule. The final molecule was assayed against UGM and compared with UDP-C-Galf, the C-glycosidic UGM substrate analogue.
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Affiliation(s)
- Sandy El Bkassiny
- University of Namur , Département de Chimie, Laboratoire de Chimie Bio-Organique, rue de Bruxelles 61, B-5000 Namur, Belgium
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128
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Ji L, Zhou GQ, Qian C, Chen XZ. Synthesis of 1,2,3-Triazoles from Azide-Derivatised Aminocyclitols by Catalytic Diazo Transfer and CuAAC Click Chemistry. European J Org Chem 2014. [DOI: 10.1002/ejoc.201301874] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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129
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Ansari AA, Rajasekaran P, Khan MM, Vankar YD. Bicyclic Hybrid Sugars as Glycosidase Inhibitors: Synthesis and Comparative Study of Inhibitory Activities of Fused Oxa-Oxa, Oxa-Aza, and Oxa-Carbasugar Hybrid Molecules. J Org Chem 2014; 79:1690-9. [DOI: 10.1021/jo402574h] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Alafia A. Ansari
- Department
of Chemistry, Indian Institute of Technology, Kanpur, Uttar Pradesh 208016, India
| | - Parasuraman Rajasekaran
- Department
of Chemistry, Indian Institute of Technology, Kanpur, Uttar Pradesh 208016, India
| | - M. Musawwer Khan
- Department
of Chemistry, Aligarh Muslim University, Aligarh, Uttar Pradesh 202002, India
| | - Yashwant D. Vankar
- Department
of Chemistry, Indian Institute of Technology, Kanpur, Uttar Pradesh 208016, India
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130
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Mondal S, Sureshan KM. Total syntheses and structural validation of lincitol A, lincitol B, uvacalol I, uvacalol J, and uvacalol K. Org Biomol Chem 2014; 12:7279-89. [DOI: 10.1039/c4ob01329h] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
First total syntheses of lincitol A, lincitol B, uvacalol I, uvacalol J and uvacalol K were achieved in racemic form, validating their structure from a common intermediate, which was synthesized in six steps from low-cost and extensively available myo-inositol.
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Affiliation(s)
- Soumik Mondal
- School of Chemistry
- Indian Institute of Science Education and Research
- Thiruvananthapuram 695016, India
| | - Kana M. Sureshan
- School of Chemistry
- Indian Institute of Science Education and Research
- Thiruvananthapuram 695016, India
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131
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Gao Q, Tontini M, Brogioni G, Nilo A, Filippini S, Harfouche C, Polito L, Romano MR, Costantino P, Berti F, Adamo R, Lay L. Immunoactivity of protein conjugates of carba analogues from Neisseria meningitidis a capsular polysaccharide. ACS Chem Biol 2013; 8:2561-7. [PMID: 24000773 DOI: 10.1021/cb400463u] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Neisseria meningitidis type A (MenA) is a Gram-negative encapsulated bacterium that is a major cause of epidemic meningitis, especially in the sub-Saharan region of Africa. The development and manufacture of a liquid glycoconjugate vaccine against MenA are hampered by the poor hydrolytic stability of its capsular polysaccharide (CPS), consisting of (1→6)-linked 2-acetamido-2-deoxy-α-d-mannopyranosyl phosphate repeating units. The replacement of the ring oxygen with a methylene group to generate a carbocyclic analogue leads to enhancement of its chemical stability. Herein, we report conjugation of carbocyclic analogue monomer, dimer, and trimer to the protein carrier CRM197. After immunization in mice, only the conjugated trimer was able to induce specific anti-MenA polysaccharide IgG antibodies with in vitro bactericidal activity, although to a lesser extent than pentadecamer and hexamer oligomers obtained from mild acid hydrolysis of the native polysaccharide conjugated to the same protein carrier. This study represents the first proof-of-concept that hydrolytically stable structural analogues of saccharide antigens can be used for the development of efficacious antimicrobial preventative therapies. Conjugates with longer carbocyclic oligomers and/or precise acetylation patterns could further increase the induced immune response to a level comparable with those of commercially available anti-meningococcal glycoconjugate vaccines.
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Affiliation(s)
- Qi Gao
- Dipartimento
di Chimica and ISTM-CNR, Università degli Studi di Milano, via Golgi 19, I-20133 Milano, Italy
| | - Marta Tontini
- Novartis Vaccines & Diagnostics, Via Fiorentina 1, 53100 Siena, Italy
| | - Giulia Brogioni
- Novartis Vaccines & Diagnostics, Via Fiorentina 1, 53100 Siena, Italy
| | - Alberto Nilo
- Novartis Vaccines & Diagnostics, Via Fiorentina 1, 53100 Siena, Italy
| | - Sara Filippini
- Novartis Vaccines & Diagnostics, Via Fiorentina 1, 53100 Siena, Italy
| | - Carole Harfouche
- Novartis Vaccines & Diagnostics, Via Fiorentina 1, 53100 Siena, Italy
| | - Laura Polito
- CNR-ISTM, via Fantoli 16/15, I-20138 Milano, Italy
| | - Maria R. Romano
- Novartis Vaccines & Diagnostics, Via Fiorentina 1, 53100 Siena, Italy
| | - Paolo Costantino
- Novartis Vaccines & Diagnostics, Via Fiorentina 1, 53100 Siena, Italy
| | - Francesco Berti
- Novartis Vaccines & Diagnostics, Via Fiorentina 1, 53100 Siena, Italy
| | - Roberto Adamo
- Novartis Vaccines & Diagnostics, Via Fiorentina 1, 53100 Siena, Italy
| | - Luigi Lay
- Dipartimento
di Chimica and ISTM-CNR, Università degli Studi di Milano, via Golgi 19, I-20133 Milano, Italy
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132
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Magdycz M, Jarosz S. Synthesis of polyhydroxylated carbo-bicyclic compounds from sugar allyltins. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.tetasy.2013.09.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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133
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The Orthoester Johnson-Claisen Rearrangement in the Synthesis of Bioactive Molecules, Natural Products, and Synthetic Intermediates - Recent Advances. European J Org Chem 2013. [DOI: 10.1002/ejoc.201301033] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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134
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Babu DC, Rao CB, Venkatesham K, Selvam JJP, Venkateswarlu Y. Toward synthesis of carbasugars (+)-gabosine C, (+)-COTC, (+)-pericosine B, and (+)-pericosine C. Carbohydr Res 2013; 388:130-7. [PMID: 24637047 DOI: 10.1016/j.carres.2013.08.008] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2013] [Revised: 08/03/2013] [Accepted: 08/09/2013] [Indexed: 11/28/2022]
Abstract
Asymmetric total synthesis of (+)-gabosine C, (+)-pericosine B, and (+)-pericosine C has been reported from readily available d-(-)-isoascorbic acid and d-ribose involving Grubbs ring closing metathesis, Morita-Baylis-Hillman (MBH) reaction, and Luche reduction.
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Affiliation(s)
- D Chanti Babu
- Division of Natural Product Chemistry, Indian Institute of Chemical Technology, Hyderabad 500 007, India.
| | - Ch Bhujanga Rao
- Division of Natural Product Chemistry, Indian Institute of Chemical Technology, Hyderabad 500 007, India
| | - K Venkatesham
- Division of Natural Product Chemistry, Indian Institute of Chemical Technology, Hyderabad 500 007, India
| | - J Jon Paul Selvam
- Division of Natural Product Chemistry, Indian Institute of Chemical Technology, Hyderabad 500 007, India
| | - Y Venkateswarlu
- Division of Natural Product Chemistry, Indian Institute of Chemical Technology, Hyderabad 500 007, India
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135
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Baran A, Aydin G, Savran T, Sahin E, Balci M. Trisequential Photooxygenation Reaction: Application to the Synthesis of Carbasugars. Org Lett 2013; 15:4350-3. [DOI: 10.1021/ol401823m] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Arif Baran
- Department of Chemistry, Sakarya University, 54100 Sakarya, Turkey, Department of Chemistry, Ataturk University, 25240 Erzurum, Turkey, and Department of Chemistry, Middle East Technical University, 06800 Ankara, Turkey
| | - Gokay Aydin
- Department of Chemistry, Sakarya University, 54100 Sakarya, Turkey, Department of Chemistry, Ataturk University, 25240 Erzurum, Turkey, and Department of Chemistry, Middle East Technical University, 06800 Ankara, Turkey
| | - Tahir Savran
- Department of Chemistry, Sakarya University, 54100 Sakarya, Turkey, Department of Chemistry, Ataturk University, 25240 Erzurum, Turkey, and Department of Chemistry, Middle East Technical University, 06800 Ankara, Turkey
| | - Ertan Sahin
- Department of Chemistry, Sakarya University, 54100 Sakarya, Turkey, Department of Chemistry, Ataturk University, 25240 Erzurum, Turkey, and Department of Chemistry, Middle East Technical University, 06800 Ankara, Turkey
| | - Metin Balci
- Department of Chemistry, Sakarya University, 54100 Sakarya, Turkey, Department of Chemistry, Ataturk University, 25240 Erzurum, Turkey, and Department of Chemistry, Middle East Technical University, 06800 Ankara, Turkey
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136
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Hirschhäuser C, Velcicky J, Schlawe D, Hessler E, Majdalani A, Neudörfl JM, Prokop A, Wieder T, Schmalz HG. Nucleoside analogues with a 1,3-diene-Fe(CO)3 substructure: stereoselective synthesis, configurational assignment, and apoptosis-inducing activity. Chemistry 2013; 19:13017-29. [PMID: 23934861 DOI: 10.1002/chem.201301672] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2013] [Indexed: 01/09/2023]
Abstract
The synthesis and stereochemical assignment of two classes of iron-containing nucleoside analogues, both of which contain a butadiene-Fe(CO)3 substructure, is described. The first type of compounds are Fe(CO)3-complexed 3'-alkenyl-2',3'-dideoxy-2',3'-dehydro nucleosides (2,5-dihydrofuran derivatives), from which the second class of compounds is derived by formal replacement of the ring oxygen atom by a CH2 group (carbocyclic nucleoside analogues). These compounds were prepared in a stereoselective manner through the metal-assisted introduction of the nucleobase. Whilst the furanoid intermediates were prepared from carbohydrates (such as methyl-glucopyranoside), the carbocyclic compounds were obtained by using an intramolecular Pauson-Khand reaction. Stereochemical assignments based on NMR and CD spectroscopy were confirmed by X-ray structural analysis. Biological investigations revealed that several of the complexes exhibited pronounced apoptosis-inducing properties (through an unusual caspase 3-independent but ROS-dependent pathway). Furthermore, some structure-activity relationships were identified, also as a precondition for the design and synthesis of fluorescent and biotin-labeled conjugates.
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Affiliation(s)
- Christoph Hirschhäuser
- Department of Chemistry, University of Cologne, Greinstrasse 4, 50939 Köln (Germany), Fax: (+49) 221-470-3064
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137
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Kelebekli L. Stereoselective Synthesis of Tricyclo[6.2.2.02,7]dodecane-3,6,9,10-tetrol via Selective Reduction of α,β-Unsaturated 1,4-DIKetone. SYNTHETIC COMMUN 2013. [DOI: 10.1080/00397911.2012.754472] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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138
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Mondal S, Prathap A, Sureshan KM. Vinylogy in Orthoester Hydrolysis: Total Syntheses of Cyclophellitol, Valienamine, Gabosine K, Valienone, Gabosine G, 1-epi-Streptol, Streptol, and Uvamalol A. J Org Chem 2013; 78:7690-700. [DOI: 10.1021/jo401272j] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Soumik Mondal
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Thiruvananthapuram, Kerala 695016, India
| | - Annamalai Prathap
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Thiruvananthapuram, Kerala 695016, India
| | - Kana M. Sureshan
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Thiruvananthapuram, Kerala 695016, India
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139
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Griffen JA, White JC, Kociok-Köhn G, Lloyd MD, Wells A, Arnot TC, Lewis SE. New aminocyclitols with quaternary stereocentres via acylnitroso cycloaddition with an ipso,ortho arene dihydrodiol. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.04.033] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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140
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Nocquet PA, Hazelard D, Gruntz G, Compain P. Synthesis of 4-membered carbasugars by way of stereoselective SmI2-mediated aldehyde-alkene cyclization. J Org Chem 2013; 78:6751-7. [PMID: 23745733 DOI: 10.1021/jo400732a] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A stereodivergent synthesis of the first examples of 4-membered carbasugars has been achieved from vitamin C by way of an efficient intramolecular SmI2-mediated aldehyde-alkene coupling. In this key step, cylobutanes with four contiguous asymmetric centers are generated with a high level of stereocontrol.
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Affiliation(s)
- Pierre-Antoine Nocquet
- Laboratoire de Synthèse Organique et Molécules Bioactives, Université de Strasbourg/CNRS (UMR 7509), Ecole Européenne de Chimie, Polymères et Matériaux, 25 rue Becquerel, 67087 Strasbourg, France
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141
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Alvarez-Dorta D, León EI, Kennedy AR, Martín A, Pérez-Martín I, Riesco-Fagundo C, Suárez E. Sequential Norrish Type II Photoelimination and Intramolecular Aldol Cyclization of α-Diketones: Synthesis of Polyhydroxylated Cyclopentitols by Ring Contraction of Hexopyranose Carbohydrate Derivatives. Chemistry 2013; 19:10312-33. [DOI: 10.1002/chem.201301230] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2013] [Indexed: 02/03/2023]
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142
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Kumar BS, Mishra GP, Rao BV. Synthesis of (+)/(−) pentenomycins via Me2AlCl induced cascade reaction. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.03.092] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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143
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Tu Z, Lin YN, Lin CH. Development of fucosyltransferase and fucosidase inhibitors. Chem Soc Rev 2013; 42:4459-75. [PMID: 23588106 DOI: 10.1039/c3cs60056d] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
L-Fucose-containing glycoconjugates are essential for a myriad of physiological and pathological activities, such as inflammation, bacterial and viral infections, tumor metastasis, and genetic disorders. Fucosyltransferases and fucosidases, the main enzymes involved in the incorporation and cleavage of L-fucose residues, respectively, represent captivating targets for therapeutic treatment and diagnosis. We herein review the important breakthroughs in the development of fucosyltransferase and fucosidase inhibitors. To demonstrate how the synthesized small molecules interact with the target enzymes, i.e. delineation of the structure-activity relationship, we cover the reaction mechanisms and resolved X-ray crystal structures, discuss how this information guides the design of enzyme inhibitors, and explain how the molecules were optimized to achieve satisfying potency and selectivity.
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Affiliation(s)
- Zhijay Tu
- Institute of Biological Chemistry and Genomics Research Center, Academia Sinica, No.128 Academia Road Section 2, Nan-Kang, Taipei, 11529, Taiwan
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144
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Yus M, González-Gómez JC, Foubelo F. Diastereoselective Allylation of Carbonyl Compounds and Imines: Application to the Synthesis of Natural Products. Chem Rev 2013; 113:5595-698. [DOI: 10.1021/cr400008h] [Citation(s) in RCA: 398] [Impact Index Per Article: 36.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Miguel Yus
- Departamento de Química
Orgánica, Facultad
de Ciencias and Instituto de Síntesis Orgánica (ISO), Universidad de Alicante, Apdo. 99, 03080 Alicante,
Spain
| | - José C. González-Gómez
- Departamento de Química
Orgánica, Facultad
de Ciencias and Instituto de Síntesis Orgánica (ISO), Universidad de Alicante, Apdo. 99, 03080 Alicante,
Spain
| | - Francisco Foubelo
- Departamento de Química
Orgánica, Facultad
de Ciencias and Instituto de Síntesis Orgánica (ISO), Universidad de Alicante, Apdo. 99, 03080 Alicante,
Spain
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145
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Koch S, Schollmeyer D, Löwe H, Kunz H. C-Glycosyl Amino Acids through Hydroboration-Cross-Coupling ofexo-Glycals and Their Application in Automated Solid-Phase Synthesis. Chemistry 2013; 19:7020-41. [DOI: 10.1002/chem.201300150] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2013] [Indexed: 01/28/2023]
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146
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Khlevin DA, Sosonyuk SE, Proskurnina MV, Zefirov NS. Stereoselective Synthesis of Polyhydroxycycloheptanes and Their Phosphate Derivatives from 8-Oxabicyclo[3.2.1]octenes. European J Org Chem 2013. [DOI: 10.1002/ejoc.201201426] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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147
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Niidu A, Paju A, Müürisepp AM, Järving I, Kailas T, Pehk T, Lopp M. Stereoselective synthesis of 1-methyl-1,2-and 1,3-cyclopentanediols via γ-lactones. Chem Heterocycl Compd (N Y) 2013. [DOI: 10.1007/s10593-013-1206-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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148
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Lahiri R, Ansari AA, Vankar YD. Recent developments in design and synthesis of bicyclic azasugars, carbasugars and related molecules as glycosidase inhibitors. Chem Soc Rev 2013; 42:5102-18. [DOI: 10.1039/c3cs35525j] [Citation(s) in RCA: 118] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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149
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Aydın G, Savran T, Aktaş F, Baran A, Balci M. Stereoselective syntheses of racemic quercitols and bromoquercitols starting from cyclohexa-1,4-diene: gala-, epi-, muco-, and neo-quercitol. Org Biomol Chem 2013; 11:1511-24. [DOI: 10.1039/c3ob26909d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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150
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