1
|
Synthesis and removal of trichloroethylidene derivatives of carbohydrates. Carbohydr Res 2022; 515:108545. [DOI: 10.1016/j.carres.2022.108545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 03/23/2022] [Accepted: 03/25/2022] [Indexed: 11/22/2022]
|
2
|
Varada M, Aher M, Erande N, Kumar VA, Fernandes M. Methoxymethyl Threofuranosyl Thymidine (4'-MOM-TNA-T) at the T7 Position of the Thrombin-Binding Aptamer Boosts Anticoagulation Activity, Thermal Stability, and Nuclease Resistance. ACS OMEGA 2020; 5:498-506. [PMID: 31956796 PMCID: PMC6964305 DOI: 10.1021/acsomega.9b03042] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 12/11/2019] [Indexed: 06/10/2023]
Abstract
The synthesis of 4'-methoxymethyl threofuranosyl (4'-MOM-TNA) thymidine and derived oligomers of the G-rich thrombin-binding aptameric (TBA) sequence is reported. The G-quadruplex stability, anticoagulation activity, and the enzymatic stability of these oligomers bearing the 2'-3'-phosphodiester backbone as single substitutions in the loop regions are studied. Amongst all the oligomers, TBA-7T bearing the 4'-MOM-TNA unit at the T7 position formed a quadruplex with the highest thermal stability. It also resulted in enhanced anticlotting activity that allowed a one-third reduction in the dose, relative to TBA. Further, TBA-7T exhibited enhanced nuclease resistance properties to both endo- and exonucleases.
Collapse
Affiliation(s)
- Manojkumar Varada
- Organic Chemistry
Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
| | - Manisha Aher
- Organic Chemistry
Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Namrata Erande
- Organic Chemistry
Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Vaijayanti A. Kumar
- Organic Chemistry
Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Moneesha Fernandes
- Organic Chemistry
Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| |
Collapse
|
3
|
Al Bujuq N. Strategies for introducing sulfur atom in a sugar ring: synthesis of 5-thioaldopyranoses and their NMR data. J Sulphur Chem 2019. [DOI: 10.1080/17415993.2019.1616734] [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]
Affiliation(s)
- Nader Al Bujuq
- Chemistry Department, Faculty of Science, Taibah University, Medina, Kingdom of Saudi Arabia
| |
Collapse
|
4
|
Baszczyňski O, Watt JM, Rozewitz MD, Guse AH, Fliegert R, Potter BVL. Synthesis of Terminal Ribose Analogues of Adenosine 5'-Diphosphate Ribose as Probes for the Transient Receptor Potential Cation Channel TRPM2. J Org Chem 2019; 84:6143-6157. [PMID: 30978018 PMCID: PMC6528165 DOI: 10.1021/acs.joc.9b00338] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
![]()
TRPM2
(transient receptor potential cation channel, subfamily M,
member 2) is a nonselective cation channel involved in the response
to oxidative stress and in inflammation. Its role in autoimmune and
neurodegenerative diseases makes it an attractive pharmacological
target. Binding of the nucleotide adenosine 5′-diphosphate
ribose (ADPR) to the cytosolic NUDT9 homology (NUDT9H) domain activates the channel. A detailed understanding of how ADPR
interacts with the TRPM2 ligand binding domain is lacking, hampering
the rational design of modulators, but the terminal ribose of ADPR
is known to be essential for activation. To study its role in more
detail, we designed synthetic routes to novel analogues of ADPR and
2′-deoxy-ADPR that were modified only by removal of a single
hydroxyl group from the terminal ribose. The ADPR analogues were obtained
by coupling nucleoside phosphorimidazolides to deoxysugar phosphates.
The corresponding C2″-based analogues proved to be unstable.
The C1″- and C3″-ADPR analogues were evaluated electrophysiologically
by patch-clamp in TRPM2-expressing HEK293 cells. In addition, a compound
with all hydroxyl groups of the terminal ribose blocked as its 1″-β-O-methyl-2″,3″-O-isopropylidene
derivative was evaluated. Removal of either C1″ or C3″
hydroxyl groups from ADPR resulted in loss of agonist activity. Both
these modifications and blocking all three hydroxyl groups resulted
in TRPM2 antagonists. Our results demonstrate the critical role of
these hydroxyl groups in channel activation.
Collapse
Affiliation(s)
- Ondřej Baszczyňski
- Wolfson Laboratory of Medicinal Chemistry, Department of Pharmacy and Pharmacology , University of Bath , Bath BA2 7AY , 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 , Bath BA2 7AY , U.K
| | - Monika D Rozewitz
- The Calcium Signalling Group, Department of Biochemistry and Molecular Cell Biology , University Medical Center Hamburg-Eppendorf , Martinistrasse 52 , 20246 Hamburg , Germany
| | - Andreas H Guse
- The Calcium Signalling Group, Department of Biochemistry and Molecular Cell Biology , University Medical Center Hamburg-Eppendorf , Martinistrasse 52 , 20246 Hamburg , Germany
| | - Ralf Fliegert
- The Calcium Signalling Group, Department of Biochemistry and Molecular Cell Biology , University Medical Center Hamburg-Eppendorf , Martinistrasse 52 , 20246 Hamburg , Germany
| | - Barry V L Potter
- 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 , Bath BA2 7AY , U.K
| |
Collapse
|
5
|
Phosphorus Pentachloride Promoted gem-Dichlorination of 2'- and 3'-Deoxynucleosides. Molecules 2018; 23:molecules23061457. [PMID: 29914115 PMCID: PMC6100136 DOI: 10.3390/molecules23061457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 06/11/2018] [Accepted: 06/11/2018] [Indexed: 11/16/2022] Open
Abstract
Halogen substitution at various positions of canonical nucleosides has generated a number of bioactive structural variants. Herein, the synthesis of two unique series of sugar modified nucleosides bearing a gem-dichloro group is presented. The synthetic plan entails the controlled addition of phosphorus pentachloride to suitably protected 2′- or 3′-ketodeoxynucleoside intermediates as the key step, facilitating the rapid construction of such functionalized molecules. Under the same reaction conditions, the highest chemoselectivity was observed for the formation of 2′,2′-dichloro-2′,3′-dideoxynucleosides, while a competing 2′,3′-elimination process occurred in the case of the 3′,3′-dichloro counterparts.
Collapse
|
6
|
Shen GH, Hong JH. Recent advances in the synthesis of cyclic 5′-nornucleoside phosphonate analogues. Carbohydr Res 2018; 463:47-106. [DOI: 10.1016/j.carres.2018.04.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 03/22/2018] [Accepted: 04/17/2018] [Indexed: 10/17/2022]
|
7
|
Wang S, Sun J, Zhang Q, Cao X, Zhao Y, Tang G, Yu B. Amipurimycin: Total Synthesis of the Proposed Structures and Diastereoisomers. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201800169] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Shengyang Wang
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Jiansong Sun
- The National Engineering Research Centre for Carbohydrate Synthesis; Jiangxi Normal University; Nanchang 330022 China
| | - Qingju Zhang
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Xin Cao
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Yachen Zhao
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Gongli Tang
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Biao Yu
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| |
Collapse
|
8
|
Wang S, Sun J, Zhang Q, Cao X, Zhao Y, Tang G, Yu B. Amipurimycin: Total Synthesis of the Proposed Structures and Diastereoisomers. Angew Chem Int Ed Engl 2018; 57:2884-2888. [DOI: 10.1002/anie.201800169] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Indexed: 01/04/2023]
Affiliation(s)
- Shengyang Wang
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Jiansong Sun
- The National Engineering Research Centre for Carbohydrate Synthesis; Jiangxi Normal University; Nanchang 330022 China
| | - Qingju Zhang
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Xin Cao
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Yachen Zhao
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Gongli Tang
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Biao Yu
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| |
Collapse
|
9
|
Jacková D, Martinková M, Gonda J, Stanková K, Bago Pilátová M, Herich P, Kožíšek J. The convergent synthesis and anticancer activity of broussonetinines related analogues. Carbohydr Res 2017; 451:59-71. [PMID: 28965067 DOI: 10.1016/j.carres.2017.09.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Revised: 09/14/2017] [Accepted: 09/14/2017] [Indexed: 11/25/2022]
Abstract
The convergent synthesis of broussonetinines related congeners 3 and 4 with the simple C13 alkyl side chain and differently configured pyrrolidine skeleton has been achieved. Our approach relied on the [3,3]-sigmatropic rearrangements of chiral allylic substrates derived from d-xylose. Cross metathesis of the common oxazolidinone intermediates 7 and 8 with tridec-1-ene followed by alkylative cyclization completed the construction of both C-alkyl iminosugars. The targeted compounds 3 and 4 were screened for antiproliferative/cytotoxic activities against multiple cancer cell lines by MTT assay. Compound 3 exhibited very good in vitro potency on Caco-2 and Jurkat cell lines with IC50 value of 5.1 μM and 5.8 μM, respectively.
Collapse
Affiliation(s)
- Dominika Jacková
- Institute of Chemical Sciences, Department of Organic Chemistry, Faculty of Science, P.J. Šafárik University, Moyzesova 11, 040 01 Košice, Slovak Republic
| | - Miroslava Martinková
- Institute of Chemical Sciences, Department of Organic Chemistry, Faculty of Science, P.J. Šafárik University, Moyzesova 11, 040 01 Košice, Slovak Republic.
| | - Jozef Gonda
- Institute of Chemical Sciences, Department of Organic Chemistry, Faculty of Science, P.J. Šafárik University, Moyzesova 11, 040 01 Košice, Slovak Republic
| | - Kvetoslava Stanková
- Institute of Chemical Sciences, Department of Organic Chemistry, Faculty of Science, P.J. Šafárik University, Moyzesova 11, 040 01 Košice, Slovak Republic
| | - Martina Bago Pilátová
- Institute of Pharmacology, Faculty of Medicine, P.J. Šafárik University, SNP 1, 040 66 Košice, Slovak Republic
| | - Peter Herich
- Institute of Physical Chemistry and Chemical Physics, Department of Physical Chemistry, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovak Republic; Central Laboratories, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovak Republic
| | - Jozef Kožíšek
- Institute of Physical Chemistry and Chemical Physics, Department of Physical Chemistry, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovak Republic
| |
Collapse
|
10
|
Fletcher MH, Burns-Lynch CE, Knouse KW, Abraham LT, DeBrosse CW, Wuest WM. A novel application of the Staudinger ligation to access neutral cyclic di-nucleotide analog precursors via a divergent method. RSC Adv 2017; 7:29835-29838. [PMID: 28670448 PMCID: PMC5472050 DOI: 10.1039/c7ra06045a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 06/01/2017] [Indexed: 11/21/2022] Open
Abstract
Our efforts to develop a scalable and divergent synthesis of cyclic di-nucleotide analog precursors have resulted in (1) an orthogonally protected di-amino carbohydrate as well as (2) the novel application of the Staudinger ligation to provide medium-sized macrocycles featuring carbamate or urea linkages.
Collapse
Affiliation(s)
- M H Fletcher
- Department of Chemistry, Temple University, Philadelphia, PA 19122, USA
| | - C E Burns-Lynch
- Department of Chemistry, Temple University, Philadelphia, PA 19122, USA
| | - K W Knouse
- Department of Chemistry, Temple University, Philadelphia, PA 19122, USA
| | - L T Abraham
- Department of Chemistry, Temple University, Philadelphia, PA 19122, USA
| | - C W DeBrosse
- Department of Chemistry, Temple University, Philadelphia, PA 19122, USA
| | - W M Wuest
- Department of Chemistry, Emory University, Atlanta, GA 30322, USA.
| |
Collapse
|
11
|
Edwards JT, Merchant RR, McClymont KS, Knouse KW, Qin T, Malins LR, Vokits B, Shaw SA, Bao DH, Wei FL, Zhou T, Eastgate MD, Baran PS. Decarboxylative alkenylation. Nature 2017; 545:213-218. [PMID: 28424520 PMCID: PMC5478194 DOI: 10.1038/nature22307] [Citation(s) in RCA: 247] [Impact Index Per Article: 35.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Accepted: 03/20/2017] [Indexed: 12/23/2022]
Abstract
Olefin chemistry, through pericyclic reactions, polymerizations, oxidations, or reductions, plays an essential role in the foundation of how organic matter is manipulated.1 Despite its importance, olefin synthesis still largely relies upon chemistry invented more than three decades ago, with metathesis2 being the most recent addition. Here we describe a simple method to access olefins with any substitution pattern or geometry from one of the most ubiquitous and variegated building blocks of chemistry: alkyl carboxylic acids. The same activating principles used in amide-bond synthesis can thus be employed, under Ni- or Fe-based catalysis, to extract CO2 from a carboxylic acid and economically replace it with an organozinc-derived olefin on mole scale. Over sixty olefins across a range of substrate classes are prepared, and the ability to simplify retrosynthetic analysis is exemplified with the preparation of sixteen different natural products across a range of ten different families.
Collapse
Affiliation(s)
- Jacob T Edwards
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, USA
| | - Rohan R Merchant
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, USA
| | - Kyle S McClymont
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, USA
| | - Kyle W Knouse
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, USA
| | - Tian Qin
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, USA
| | - Lara R Malins
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, USA
| | - Benjamin Vokits
- Discovery Chemistry, Bristol-Myers Squibb, 350 Carter Road, Hopewell, New Jersey 08540, USA
| | - Scott A Shaw
- Discovery Chemistry, Bristol-Myers Squibb, 350 Carter Road, Hopewell, New Jersey 08540, USA
| | - Deng-Hui Bao
- Asymchem Life Science (Tianjin), Tianjin Economic-technological Development Zone, Tianjin 300457, China
| | - Fu-Liang Wei
- Asymchem Life Science (Tianjin), Tianjin Economic-technological Development Zone, Tianjin 300457, China
| | - Ting Zhou
- Asymchem Life Science (Tianjin), Tianjin Economic-technological Development Zone, Tianjin 300457, China
| | - Martin D Eastgate
- Chemical Development, Bristol-Myers Squibb, One Squibb Drive, New Brunswick, New Jersey 08903, USA
| | - Phil S Baran
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, USA
| |
Collapse
|
12
|
Syntheses and complexing ability of α-d-gluco- and α-d-xylofuranoside-based lariat ethers. J INCL PHENOM MACRO 2016. [DOI: 10.1007/s10847-016-0601-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
13
|
Marine cytotoxic jaspine B and its stereoisomers: biological activity and syntheses. Carbohydr Res 2016; 423:1-42. [DOI: 10.1016/j.carres.2016.01.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Revised: 01/11/2016] [Accepted: 01/20/2016] [Indexed: 01/03/2023]
|
14
|
Stanková K, Martinková M, Gonda J, Bago M, Pilátová M, Gönciová G. The convergent total synthesis of cytotoxic homospisulosine and its 3-epi-analogue. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.tetasy.2015.11.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
|
15
|
Mulani SK, Cheng KC, Mong KKT. General Homologation Strategy for Synthesis of l-glycero- and d-glycero-Heptopyranoses. Org Lett 2015; 17:5536-9. [DOI: 10.1021/acs.orglett.5b02620] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Shaheen K. Mulani
- Applied Chemistry Department, National Chiao Tung University, 1001 University Road, Taiwan 300, R.O.C
| | - Kuang-Chun Cheng
- Applied Chemistry Department, National Chiao Tung University, 1001 University Road, Taiwan 300, R.O.C
| | - Kwok-Kong T. Mong
- Applied Chemistry Department, National Chiao Tung University, 1001 University Road, Taiwan 300, R.O.C
| |
Collapse
|
16
|
Reddy ER, Trivedi R, Sarma AVS, Sridhar B, Anantaraju HS, Sriram D, Yogeeswari P, Nagesh N. Sugar-boronate ester scaffold tethered pyridyl-imine palladium(ii) complexes: synthesis and their in vitro anticancer evaluation. Dalton Trans 2015; 44:17600-16. [DOI: 10.1039/c5dt03266k] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The anticancer activity of sugar-boronate ester containing palladium(ii) complexes is reported.
Collapse
Affiliation(s)
- Eda Rami Reddy
- Inorganic and Physical Chemistry Division
- CSIR-IICT
- Hyderabad-500007
- India
| | - Rajiv Trivedi
- Inorganic and Physical Chemistry Division
- CSIR-IICT
- Hyderabad-500007
- India
| | | | | | | | - Dharmarajan Sriram
- Department of Pharmacy
- Birla Institute of Technology & Science – Pilani
- Hyderabad 500 078
- India
| | - Perumal Yogeeswari
- Department of Pharmacy
- Birla Institute of Technology & Science – Pilani
- Hyderabad 500 078
- India
| | - Narayana Nagesh
- CSIR-Centre for Cellular and Molecular Biology
- Hyderabad-500 007
- India
| |
Collapse
|
17
|
Martinková M, Mezeiová E, Gonda J, Jacková D, Pomikalová K. Total synthesis of (−)-jaspine B and its 4-epi-analogue from d-xylose. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.tetasy.2014.04.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
|
18
|
Rami Reddy E, Trivedi R, Giribabu L, Sridhar B, Pranay kumar K, Srinivasa Rao M, Sarma AVS. Carbohydrate-Based Ferrocenyl Boronate Esters: Synthesis, Characterization, Crystal Structures, and Antibacterial Activity. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201300773] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
19
|
|
20
|
Rodríguez-Vázquez N, Salzinger S, Silva LF, Amorín M, Granja JR. Synthesis of Cyclic γ-Amino Acids for Foldamers and Peptide Nanotubes. European J Org Chem 2013. [DOI: 10.1002/ejoc.201201565] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
|
21
|
Bauer T, Majdecki M, Jurczak J. Sugar-based monodentate phosphoramidite ligands for Cu-catalyzed enantioselective conjugate addition to enones. Tetrahedron 2013. [DOI: 10.1016/j.tet.2012.12.049] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
22
|
Bunker RD, Bulloch EMM, Dickson JMJ, Loomes KM, Baker EN. Structure and function of human xylulokinase, an enzyme with important roles in carbohydrate metabolism. J Biol Chem 2012. [PMID: 23179721 DOI: 10.1074/jbc.m112.427997] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
D-Xylulokinase (XK; EC 2.7.1.17) catalyzes the ATP-dependent phosphorylation of d-xylulose (Xu) to produce xylulose 5-phosphate (Xu5P). In mammals, XK is the last enzyme in the glucuronate-xylulose pathway, active in the liver and kidneys, and is linked through its product Xu5P to the pentose-phosphate pathway. XK may play an important role in metabolic disease, given that Xu5P is a key regulator of glucose metabolism and lipogenesis. We have expressed the product of a putative human XK gene and identified it as the authentic human d-xylulokinase (hXK). NMR studies with a variety of sugars showed that hXK acts only on d-xylulose, and a coupled photometric assay established its key kinetic parameters as K(m)(Xu) = 24 ± 3 μm and k(cat) = 35 ± 5 s(-1). Crystal structures were determined for hXK, on its own and in complexes with Xu, ADP, and a fluorinated inhibitor. These reveal that hXK has a two-domain fold characteristic of the sugar kinase/hsp70/actin superfamily, with glycerol kinase as its closest relative. Xu binds to domain-I and ADP to domain-II, but in this open form of hXK they are 10 Å apart, implying that a large scale conformational change is required for catalysis. Xu binds in its linear keto-form, sandwiched between a Trp side chain and polar side chains that provide exquisite hydrogen bonding recognition. The hXK structure provides a basis for the design of specific inhibitors with which to probe its roles in sugar metabolism and metabolic disease.
Collapse
Affiliation(s)
- Richard D Bunker
- Maurice Wilkins Centre for Molecular Biodiscovery and School of Biological Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | | | | | | | | |
Collapse
|
23
|
Ding HX, Da LC, Yang RC, Cao BP, Sun Q, Xiao Q. First total synthesis of a naturally occurring nucleoside disulfide: 9-(5′-Deoxy-5′-thio-β-d-xylofuranosyl)adenine disulfide. CHINESE CHEM LETT 2012. [DOI: 10.1016/j.cclet.2012.06.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
|
24
|
Martinková M, Gonda J, Uhríková A, Raschmanová JŠ, Kuchár J. An efficient synthesis of the polar part of sulfamisterin and its analogs. Carbohydr Res 2012; 352:23-36. [DOI: 10.1016/j.carres.2012.02.019] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2011] [Revised: 02/16/2012] [Accepted: 02/17/2012] [Indexed: 11/15/2022]
Affiliation(s)
- Miroslava Martinková
- Institute of Chemical Sciences, Department of Organic Chemistry, P.J. Šafárik University, Moyzesova 11, Sk-040 01 Košice, Slovak Republic.
| | | | | | | | | |
Collapse
|
25
|
Fujino T, Endo K, Yamazaki N, Isobe H. Synthesis of Triazole-linked Analogues of RNA (TLRNA). CHEM LETT 2012. [DOI: 10.1246/cl.2012.403] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
| | - Kenta Endo
- Department of Chemistry, Tohoku University
| | | | | |
Collapse
|
26
|
Sun J, Dou Y, Ding H, Yang R, Sun Q, Xiao Q. First total synthesis of a naturally occurring iodinated 5'-deoxyxylofuranosyl marine nucleoside. Mar Drugs 2012; 10:881-889. [PMID: 22690148 PMCID: PMC3366680 DOI: 10.3390/md10040881] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2012] [Revised: 03/16/2012] [Accepted: 03/24/2012] [Indexed: 12/15/2022] Open
Abstract
4-Amino-7-(5'-deoxy-β-D-xylofuranosyl)-5-iodo-pyrrolo[2,3-d]pyrimidine 1, an unusual naturally occurring marine nucleoside isolated from an ascidan, Diplosoma sp., was synthesized from D-xylose in seven steps with 28% overall yield on 10 g scale. The key step was Vorbrüggen glycosylation of 5-iodo-pyrrolo[2,3-d]pyrimidine with 5-deoxy-1,2-O-diacetyl-3-O-benzoyl-D-xylofuranose. Its absolute configuration was confirmed.
Collapse
Affiliation(s)
| | | | | | | | | | - Qiang Xiao
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science Technology Normal University, Nanchang 330013, China; (J.S.); (Y.D.); (H.D.); (R.Y.); (Q.S.)
| |
Collapse
|
27
|
Zhao ML, Zhang E, Gao J, Zhang Z, Zhao YT, Qu W, Liu HM. An efficient and convenient formal synthesis of Jaspine B from d-xylose. Carbohydr Res 2012; 351:126-9. [DOI: 10.1016/j.carres.2012.01.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2011] [Revised: 01/14/2012] [Accepted: 01/19/2012] [Indexed: 11/24/2022]
|
28
|
Trivedi R, Rami Reddy E, Kiran Kumar C, Sridhar B, Pranay Kumar K, Srinivasa Rao M. Efficient synthesis, structural characterization and anti-microbial activity of chiral aryl boronate esters of 1,2- O -isopropylidene-α- d -xylofuranose. Bioorg Med Chem Lett 2011; 21:3890-3. [DOI: 10.1016/j.bmcl.2011.05.036] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2011] [Revised: 04/27/2011] [Accepted: 05/10/2011] [Indexed: 12/15/2022]
|
29
|
Huang Q, Herdewijn P. Synthesis of 3′-S-Phosphonomethyl-Modified Nucleoside Phosphonates with a 3′-Deoxy-3′-thio-α-L-threosyl Sugar Moiety. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100177] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
30
|
Huang Q, Herdewijn P. Synthesis of (E)-3′-Phosphonoalkenyl Modified Nucleoside Phosphonates via a Highly Stereoselective Olefin Cross-Metathesis Reaction. J Org Chem 2011; 76:3742-53. [DOI: 10.1021/jo200033p] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Qiuya Huang
- Laboratory of Medicinal Chemistry, Rega Institute for Medical Research, K.U. Leuven, Leuven B-3000, Belgium
| | - Piet Herdewijn
- Laboratory of Medicinal Chemistry, Rega Institute for Medical Research, K.U. Leuven, Leuven B-3000, Belgium
| |
Collapse
|
31
|
Ogi T, Margiastuti P, Teruya T, Taira J, Suenaga K, Ueda K. Isolation of C11 cyclopentenones from two didemnid species, Lissoclinum sp. and Diplosoma sp. Mar Drugs 2009; 7:816-32. [PMID: 20098612 PMCID: PMC2810228 DOI: 10.3390/md7040816] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2009] [Revised: 12/14/2009] [Accepted: 12/16/2009] [Indexed: 11/16/2022] Open
Abstract
A series of new C(11) cyclopentenones 1-7 was isolated, together with four known metabolites 9/10, 12 and 13, from the extract of the didemnid ascidian Lissoclinum sp. The other didemnid ascidian Diplosoma sp. contained didemnenones 1, 2 and 5, and five known metabolites 8-12. The structures of 1-7 were elucidated by spectroscopic analyses. Cytotoxicity of the isolated compounds was evaluated against three human cancer cell lines (HCT116, A431 and A549).
Collapse
Affiliation(s)
- Takayuki Ogi
- Department of Chemistry, Biology and Marine Science, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa 903-0213, Japan; E-Mail:
(T.O.)
- Okinawa Industrial Technology Center, 12-2 Suzaki, Uruma, Okinawa 904-2234, Japan
| | - Palupi Margiastuti
- Department of Chemistry, Biology and Marine Science, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa 903-0213, Japan; E-Mail:
(T.O.)
| | - Toshiaki Teruya
- Faculty of Education, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa 903-0213, Japan; E-Mail:
(T.T.)
| | - Junsei Taira
- Department of Bioresources Engineering, Okinawa National College of Technology, 905 Henoko, Nago, Okinawa 905-2192, Japan; E-Mail:
(J.T.)
| | - Kiyotake Suenaga
- Department of Chemistry, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan; E-Mail:
(K.S.)
| | - Katsuhiro Ueda
- Department of Chemistry, Biology and Marine Science, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa 903-0213, Japan; E-Mail:
(T.O.)
- Author to whom correspondence should be addressed; E-Mail:
; Tel.: +81-98-895-8894; Fax: +81-98-895-8565
| |
Collapse
|
32
|
Wnuk SF, Robert J, Sobczak AJ, Meyers BP, Malladi VLA, Zhu J, Gopishetty B, Pei D. Inhibition of S-ribosylhomocysteinase (LuxS) by substrate analogues modified at the ribosyl C-3 position. Bioorg Med Chem 2009; 17:6699-706. [PMID: 19682914 DOI: 10.1016/j.bmc.2009.07.057] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2009] [Revised: 07/22/2009] [Accepted: 07/23/2009] [Indexed: 11/27/2022]
Abstract
S-ribosylhomocysteinase (LuxS) catalyzes the cleavage of the thioether bond of S-ribosylhomocysteine (SRH) to produce homocysteine and 4,5-dihydroxy-2,3-pentanedione (DPD), which is the precursor of type 2 autoinducer for bacterial cell-cell communication. In this work, we have synthesized several SRH analogues modified at the ribose C3 position as potential inhibitors of LuxS. While removal or methylation of the C3-OH resulted in simple competitive inhibitors of moderate potency, inversion of the C3 stereochemistry or substitution of fluorine for C3-OH resulted in slow-binding inhibitors of improved potency. The most potent inhibitor showed a K(I)(*) value of 0.43 microM.
Collapse
Affiliation(s)
- Stanislaw F Wnuk
- Department of Chemistry and Biochemistry, Florida International University, Miami, FL 33199, USA.
| | | | | | | | | | | | | | | |
Collapse
|
33
|
Kochetkova SV, Varizhuk AM, Kolganova NA, Timofeev EN, Florent'ev VL. [Synthesis of 3'-deoxy-3'-carboxymethylnucleosides, precursors of oligonucleotides with an amide internucleoside bond]. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2009; 35:76-83. [PMID: 19377525 DOI: 10.1134/s1068162009010099] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
An improved method for the synthesis of 3-deoxy-3-carboxymethylnucleosides was suggested. Oxidation of 5-O-benzoyl-l,2-O-isopropylidene-alpha-D-xylofuranose resulted in the 3-keto derivative, which was treated with triethylphosphonoacetate in the presence of sodium hydride to obtain the 3-deoxy-3-ethoxycarbonylmethylene derivative. Hydrogenation of the unsaturated compound proceeded strictly stereospecifically and gave the product with the ribo configuration. Acetolysis of the resulting compound with AcOH-Ac2O-CH3SO3H led to 1,2-di-O-acetyl-5-O-benzoyl-3-deoxy-3-ethoxycarbonylmethyl-D-ribofuranose, whose interaction with persilylated nucleic bases gave 3-deoxy-3-ethoxycarbonylmethylnucleosides in a total yield of 42-49% from the starting compound.
Collapse
|
34
|
Gopishetty B, Zhu J, Rajan R, Sobczak AJ, Wnuk SF, Bell CE, Pei D. Probing the catalytic mechanism of S-ribosylhomocysteinase (LuxS) with catalytic intermediates and substrate analogues. J Am Chem Soc 2009; 131:1243-50. [PMID: 19099445 PMCID: PMC2654206 DOI: 10.1021/ja808206w] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
S-Ribosylhomocysteinase (LuxS) cleaves the thioether bond in S-ribosylhomocysteine (SRH) to produce homocysteine (Hcys) and 4,5-dihydroxy-2,3-pentanedione (DPD), the precursor of the type II bacterial quorum sensing molecule (AI-2). The catalytic mechanism of LuxS comprises three distinct reaction steps. The first step involves carbonyl migration from the C1 carbon of ribose to C2 and the formation of a 2-ketone intermediate. The second step shifts the C=O group from the C2 to C3 position to produce a 3-ketone intermediate. In the final step, the 3-ketone intermediate undergoes a beta-elimination reaction resulting in the cleavage of the thioether bond. In this work, the 3-ketone intermediate was chemically synthesized and shown to be chemically and kinetically competent in the LuxS catalytic pathway. Substrate analogues halogenated at the C3 position of ribose were synthesized and reacted as time-dependent inhibitors of LuxS. The time dependence was caused by enzyme-catalyzed elimination of halide ions. Examination of the kinetics of halide release and decay of the 3-ketone intermediate catalyzed by wild-type and mutant LuxS enzymes revealed that Cys-84 is the general base responsible for proton abstraction in the three reaction steps, whereas Glu-57 likely facilitates substrate binding and proton transfer during catalysis.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Dehua Pei
- To whom correspondence should be addressed: Department of Chemistry, The Ohio State University, 100 West 18th Avenue, Columbus, OH 43210. Phone: (614) 688-4068; Fax: (614) 292-1532; E-mail:
| |
Collapse
|
35
|
Gruzman A, Shamni O, Ben Yakir M, Sandovski D, Elgart A, Alpert E, Cohen G, Hoffman A, Katzhendler Y, Cerasi E, Sasson S. Novel D-xylose derivatives stimulate muscle glucose uptake by activating AMP-activated protein kinase alpha. J Med Chem 2009; 51:8096-108. [PMID: 19049348 DOI: 10.1021/jm8008713] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Type 2 diabetes mellitus has reached epidemic proportions; therefore, the search for novel antihyperglycemic drugs is intense. We have discovered that D-xylose increases the rate of glucose transport in a non-insulin-dependent manner in rat and human myotubes in vitro. Due to the unfavorable pharmacokinetic properties of D-xylose we aimed at synthesizing active derivatives with improved parameters. Quantitative structure-activity relationship analysis identified critical hydroxyl groups in D-xylose. These data were used to synthesize various hydrophobic derivatives of D-xylose of which compound 19 the was most potent compound in stimulating the rate of hexose transport by increasing the abundance of glucose transporter-4 in the plasma membrane of myotubes. This effect resulted from the activation of AMP-activated protein kinase without recruiting the insulin transduction mechanism. These results show that lipophilic D-xylose derivatives may serve as prototype molecules for the development of novel antihyperglycemic drugs for the treatment of diabetes.
Collapse
Affiliation(s)
- Arie Gruzman
- Department of Pharmacology, School of Pharmacy, Faculty of Medicine, The Hebrew University, 91120 Jerusalem, Israel
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
36
|
Reiriz C, Amorín M, García-Fandiño R, Castedo L, Granja JR. α,γ-Cyclic peptide ensembles with a hydroxylated cavity. Org Biomol Chem 2009; 7:4358-61. [DOI: 10.1039/b911247m] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
37
|
Carbohydrate chiral-pool approach to four enantiomerically pure 2-naphthylmethyl 3-hydroxy-2-methylbutanoates. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.03.088] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
38
|
Margiastuti P, Ogi T, Teruya T, Taira J, Suenaga K, Ueda K. An Unusual Iodinated 5′-Deoxyxylofuranosyl Nucleoside from an Okinawan Ascidian,Diplosomasp. CHEM LETT 2008. [DOI: 10.1246/cl.2008.448] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
39
|
Kim KR, Park AY, Moon HR, Chun MW, Jeong LS. Design, enantiopure synthesis, and biological evaluation of novel iso-D-2',3'-dideoxy-3'-fluorothianucleoside derivatives as a bioisostere of lamivudine. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2008; 26:911-5. [PMID: 18058507 DOI: 10.1080/15257770701506426] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Novel iso D-2',3'-dideoxythianucleoside derivatives 1-3 were designed and asymmetrically synthesized to search for new anti-HIV agents. Final compounds 1-3 were evaluated against a variety of viruses including HIV-1 and 2. Only cytosine analog 3 showed a potent anti-VSV activity (EC(50) = 9.43 microg/mL). This result implies that iso 2',3'-dideoxy sugar templates might play a role of a sugar surrogate of nucleosides for the development of anti-RNA virus agent.
Collapse
Affiliation(s)
- Kyung Ran Kim
- College of Pharmacy and Research Institute for Drug Development, Pusan National University, Busan, Korea
| | | | | | | | | |
Collapse
|
40
|
Doboszewski B, Herdewijn P. Carbohydrate-based approach to four enantiomerically pure 2-naphthylmethyl 3-hydroxy-2-methylbutanoates. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2007.12.104] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
41
|
HSCN condensation with ulosides: preferred formation of carbohydrate-fused hemiaminals of the 4-hydroxy-1,3-oxazolidine-2-thione type. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2007.11.125] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
42
|
Zhang HY, Yang ZJ, Yu HW, Piao ZS, Ma LT, Min JM, Zhang LH. Synthesis of 2-(4-Aminocarbonyl-2-thiazoyl)-1,4-anhydro-D-ribitol, and-D-arabitol. SYNTHETIC COMMUN 2007. [DOI: 10.1080/00397919908085885] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Hu Yi Zhang
- a The National Key Laboratory of Natural and Biomimetic Drugs School of Pharmaceutical Sciences, Beijing Medical University , Beijing, 100083, P. R. China
| | - Zhen Jun Yang
- a The National Key Laboratory of Natural and Biomimetic Drugs School of Pharmaceutical Sciences, Beijing Medical University , Beijing, 100083, P. R. China
| | - Hong Wu Yu
- a The National Key Laboratory of Natural and Biomimetic Drugs School of Pharmaceutical Sciences, Beijing Medical University , Beijing, 100083, P. R. China
| | - Zhi Song Piao
- a The National Key Laboratory of Natural and Biomimetic Drugs School of Pharmaceutical Sciences, Beijing Medical University , Beijing, 100083, P. R. China
| | - Ling Tai Ma
- a The National Key Laboratory of Natural and Biomimetic Drugs School of Pharmaceutical Sciences, Beijing Medical University , Beijing, 100083, P. R. China
| | - Ji Mei Min
- a The National Key Laboratory of Natural and Biomimetic Drugs School of Pharmaceutical Sciences, Beijing Medical University , Beijing, 100083, P. R. China
| | - Li He Zhang
- a The National Key Laboratory of Natural and Biomimetic Drugs School of Pharmaceutical Sciences, Beijing Medical University , Beijing, 100083, P. R. China
| |
Collapse
|
43
|
|
44
|
Moravcová J, Vanclová Z, Čapková J, Kefurt K, Staněk J. Enzymic Hydrolysis of Methyl 2,3-O-Acetyl-5-Deoxy-α and β-D-Xylofuranosides - An Active-Site Model of Pig Liver Esterase. J Carbohydr Chem 2006. [DOI: 10.1080/07328309708005734] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
45
|
Talekar RR, Wightman RH. Synthesis of Some Pyrrolo[2,3-d]Pyrimidine Isodideoxynucleosides of (S,S)-Stereochemistry. ACTA ACUST UNITED AC 2006. [DOI: 10.1080/07328319708001366] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
46
|
Du Y, Liu J, Linhardt RJ. Stereoselective synthesis of cytotoxic anhydrophytosphingosine pachastrissamine (jaspine B) from D-xylose. J Org Chem 2006; 71:1251-3. [PMID: 16438548 PMCID: PMC4140561 DOI: 10.1021/jo051644y] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The first naturally occurring anhydrophytosphingosine, pachastrissamine (jaspine B), a marine compound cytotoxic toward P388, A549, HT29, and MEL28 cell lines at IC(50) = 0.01 microg/mL level, has been stereoselectively synthesized from D-xylose in 10 linear steps with 25.7% overall yield.
Collapse
Affiliation(s)
- Yuguo Du
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
| | | | | |
Collapse
|
47
|
Jones NA, Nepogodiev SA, MacDonald CJ, Hughes DL, Field RA. Synthesis of the Branched-Chain Sugar Aceric Acid: A Unique Component of the Pectic Polysaccharide Rhamnogalacturonan-II. J Org Chem 2005; 70:8556-9. [PMID: 16209607 DOI: 10.1021/jo051012b] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Described herein is the synthesis of 3-C-carboxy-5-deoxy-L-xylose (aceric acid), a rare branched-chain sugar found in the complex pectic polysaccharide rhamnogalacturonan-II. The key synthetic step in the construction of aceric acid was the stereoselective addition of 2-trimethylsilyl thiazole to 5-deoxy-1,2-O-isopropylidene-alpha-L-erythro-pentofuran-3-ulose (2), which was prepared from L-xylose. The thiazole group was efficiently converted into the required carboxyl group via conventional transformations. Aceric acid was also synthesized by dihydroxylation of a 3-C-methylene derivative of 2 followed by oxidation of the resulting hydroxylmethyl group. The C-2 epimer of aceric acid was also synthesized using thiazole addition chemistry, starting from L-arabinose.
Collapse
Affiliation(s)
- Nigel A Jones
- School of Chemical Sciences and Pharmacy, University of East Anglia, Norwich NR4 7TJ, UK
| | | | | | | | | |
Collapse
|
48
|
Domínguez L, van Nhien AN, Tomassi C, Len C, Postel D, Marco-Contelles J. Synthesis of 4-Amino-5-H-2,3-dihydroisothiazole-1,1-dioxide Ring Systems on Sugar Templates via Carbanion-Mediated Sulfonamide Intramolecular Cyclization Reactions (CSIC Protocols) of Glyco-α-sulfonamidonitriles. J Org Chem 2004; 69:843-56. [PMID: 14750814 DOI: 10.1021/jo035301g] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The carbanion-mediated sulfonate intramolecular cyclizations (CSIC protocols) of glyco-alpha-sulfonamidonitriles derived from readily available monosaccharides have been extensively investigated using potassium carbonate, cesium carbonate, n-BuLi, and LDA as bases. As a result, a series of enantiomerically pure spiro(4-amino-5-H-2,3-dihydroisothiazole-1,1-dioxide) derivatives have been prepared efficiently and isolated in good yield. The synthesis of these new bicyclic systems is key to accessing a novel range of aza analogues of TSAO nucleosides (ATSAOs).
Collapse
Affiliation(s)
- Laura Domínguez
- Laboratorio de Radicales Libres, Instituto de Química Orgánica General, CSIC, C/Juan de la Cierva, 3, 28006-Madrid, Spain
| | | | | | | | | | | |
Collapse
|
49
|
Radical cyclisation approach for the synthesis of (+)dihydrocanadensolide, (+)dihydrosporothriolide and their C-3 epimers from d-xylose. Tetrahedron 2003. [DOI: 10.1016/s0040-4020(03)01068-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
50
|
Radical-mediated stereoselective synthesis of (+)-dihydrocanadensolide and (−)-3-epi-dihydrocanadensolide from d-xylose. Tetrahedron Lett 2001. [DOI: 10.1016/s0040-4039(01)01168-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|