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Recent Updates on Development of Protein-Tyrosine Phosphatase 1B Inhibitors for Treatment of Diabetes, Obesity and Related Disorders. Bioorg Chem 2022; 121:105626. [DOI: 10.1016/j.bioorg.2022.105626] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 12/19/2021] [Accepted: 01/13/2022] [Indexed: 01/30/2023]
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2
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Shevchuk M, Wang Q, Pajkert R, Xu J, Mei H, Röschenthaler G, Han J. Recent Advances in Synthesis of Difluoromethylene Phosphonates for Biological Applications. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001464] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Michael Shevchuk
- Department of Life Sciences and Chemistry Jacobs University Bremen gGmbH Campus Ring 1 28759 Bremen Germany
| | - Qian Wang
- Jiangsu Co–Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering Nanjing Forestry University Nanjing 210037 People's Republic of China
| | - Romana Pajkert
- Department of Life Sciences and Chemistry Jacobs University Bremen gGmbH Campus Ring 1 28759 Bremen Germany
| | - Jingcheng Xu
- Jiangsu Co–Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering Nanjing Forestry University Nanjing 210037 People's Republic of China
| | - Haibo Mei
- Jiangsu Co–Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering Nanjing Forestry University Nanjing 210037 People's Republic of China
| | - Gerd‐Volker Röschenthaler
- Department of Life Sciences and Chemistry Jacobs University Bremen gGmbH Campus Ring 1 28759 Bremen Germany
| | - Jianlin Han
- Jiangsu Co–Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering Nanjing Forestry University Nanjing 210037 People's Republic of China
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3
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Shen GH, Hong JH. Chemical Synthesis of Acyclic Nucleoside Phosphonate Analogs Linked with Cyclic Systems between the Phosphonate and the Base Moieties. Curr Med Chem 2020; 27:5918-5948. [DOI: 10.2174/0929867326666190620100217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 03/11/2019] [Accepted: 03/15/2019] [Indexed: 11/22/2022]
Abstract
The syntheses of acyclic nucleoside phosphonate (ANP) analogs linked with cyclic systems
are described in the present review. The purpose of the review is to report the methodology of
ANP analogs and to give an idea on the synthesis of a therapeutic structural feature of such analogs.
The cyclopropane systems were mainly prepared by diazomethane cyclopropanation catalyzed by
Pd(OAc)2, intramolecular alkylation, Kulinkovich cyclopropanation, and use of difluorocyclopropane,
and so forth. The preparation of methylenecyclopropane system was made by diazoacetate
cyclopropanation catalyzed by Rhodium followed by addition-elimination reactions. For the preparation
of a variety of tethered 1,2,3-triazole systems, 1,3-dipolar cycloaddition between azidealkylphosphonates
and propargylated nucleobases was mainly applied. The formation of various
phosphonate moieties was achieved via phosphonylation of alkoxide, cross-coupling between
BrZnCF2P (O)(OEt)2 with iodoalkens catalyzed by CuBr, Michaelis-Arbuzov reaction with phosphite,
and Rh(II)-catalyzed O-H insertion, and so forth.
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Affiliation(s)
- Guang Huan Shen
- Heilongjiang Provincial Key Laboratory of Drug Prevention and Treatment for Senile Diseases, College of Pharmacy, Harbin University of Commerce, Harbin 150076, China
| | - Joon Hee Hong
- College of Pharmacy, Chosun University, Kwangju 501-759, Korea
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Yokomatsu T. Development of Biologically Active Compounds on the Basis of Phosphonic and Phosphinic Acid Functionalities. YAKUGAKU ZASSHI 2017; 137:1051-1086. [PMID: 28867694 DOI: 10.1248/yakushi.17-00110] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Phosphonic and phosphinic acids, especially α-heteroatom-substituted ones, possess unique structural and physical features which enable them to act as hydrotically stable analogs to biological phosphates in biological processes. They also act as mimetics in the transition state of the protease-induced hydrolysis of dipeptides. The first half of this review focuses on selected new synthetic methods developed by our research group for the stereoselective synthesis of α-heteroatom-substituted phosphonic and phosphinic acid derivatives, including modified nucleotide analogs and phosphinyl dipeptide isosteres. In the latter half, this review summarizes the utility of difluoromethylenephosphonic acids and phosphonic acid esters in the development of enzyme inhibitors against protein tyrosine phosphatases, sphingomyelinases, purine nucleoside phosphorylases and thrombin. The enzyme inhibitors developed were used as probes to elucidate signal transductions and the mechanisms of enzyme actions. The findings of the studies are briefly described.
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5
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Ong JX, Yap CW, Ang WH. Rational Design of Selective Organoruthenium Inhibitors of Protein Tyrosine Phosphatase 1B. Inorg Chem 2012; 51:12483-92. [DOI: 10.1021/ic301884j] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Jun Xiang Ong
- Department of Chemistry, National University of Singapore, 3 Science Drive 3,
Singapore 117543
| | - Chun Wei Yap
- Department
of Pharmacy, National University of Singapore, 18 Science Drive
4, Singapore 117543
| | - Wee Han Ang
- Department of Chemistry, National University of Singapore, 3 Science Drive 3,
Singapore 117543
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6
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7
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Romanenko VD, Kukhar VP. Fluorinated phosphonates: synthesis and biomedical application. Chem Rev 2007; 106:3868-935. [PMID: 16967924 DOI: 10.1021/cr051000q] [Citation(s) in RCA: 289] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Vadim D Romanenko
- Institute of Bioorganic Chemistry and Petrochemistry, National Academy of Sciences of the Ukraine, 1 Murmanska Street, Kyiv-94 02660, Ukraine
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9
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Shibuya S. [Synthesis of phosphonic acid and phosphinic acid derivatives for development of biologically active compounds]. YAKUGAKU ZASSHI 2005; 124:725-49. [PMID: 15516802 DOI: 10.1248/yakushi.124.725] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
This paper covers recent publications from our laboratory on the synthesis of a variety of phosphonate and phosphinate derivatives. New methods for the enantioselective synthesis of alpha-hydroxyphosphonates were established by Lewis acid-mediated cleavage of homochiral 1,3-dioxaneacetals with P(OEt)(3) and chiral metal ligand-mediated hydrophosphonylation of aldehydes. Two diastereomers of HPmp derivatives were prepared by an application of these methods. The HPmp derivatives were convered to FPmp derivatives but with low diastereoselectivity. Hydrophosphonylation of alpha-aminoaldehydes afforded threo- and erythro-beta-amino-alpha-hydroxyphosphonates under chelation and nonchelation controlled conditions, respectively. The asymmetric dihydroxylation of alpha, beta-, and beta, gamma-unsaturated phosphonates with AD-mix-alpha and AD-mix-beta reagents gave alpha, beta- and beta, gamma-dihydroxyphosphonates with high enantioselectivity. The method was applied to the kinetic resolution of racemic alpha-oxygetated beta, gamma-unsaturated phosphonates. Treatment of allyloxymethylphosphonates with the base afforded alpha-hydroxyphosphonates via the [2,3]-Wittig reaction. Threo- and erythro-beta-amino-alpha-hydroxyphosphinates were obtained with high diastereoselectivity by phosphinylation of alpha-aminoaldehydes in the presence of (R)- and (S)-ALB, respectively. The phosphinylation of alpha-oxygenated aldehydes afforded the corresponding alpha, beta-dioxygenated phosphinates, but with low diastereoselectivity. Sphingomyelin analogues containing CF(2)PO(OH)(2) were synthesized starting from (S)- and (R)-Garner aldehyde for the purpose of obtaining potent sphyngomyelinase inhibitors. A useful method for the synthesis of alpha, alpha-difluorobenzylphosphonates was established based on the cross coupling reaction of an iodobenzene derivative with ZnCuBr(2)CF(2)PO(OEt)(2). The synthetic utility of ZnCuBr(2)CF(2)PO(OEt)(2) was examined to obtain alpha, alpha-difluoromethylenenphosphonates. The method was applied to a synthesis of PNP-inhibitory active compounds by combination of the purine base and alcohols containing difluoromethylenephosphonate. The methodology for the beta-selective N-glycosylation of 2,3-dideoxy glucoside was established by introducing phosphonothioates at the 3-position of glycosyl doners instead of phosphonate. Synthesis of new acylic nucleotide analogues designed based on the structural modification of ARS2267 is also described. Finally, kiral synthesis of some phosphonates was achieved using lipase through kinetic resolution.
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Affiliation(s)
- Shiroshi Shibuya
- School of Pharmacy, Tokyo University of Pharmacy and Life Science, Hachioji 192-0392, Japan.
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10
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Murano T, Yuasa Y, Kobayakawa H, Yokomatsu T, Shibuya S. Synthesis of acyclic nucleotide analogues possessing a difluoromethylene phosphonyl group at the side chain. Tetrahedron 2003. [DOI: 10.1016/j.tet.2003.10.064] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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11
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Murano T, Yuasa Y, Muroyama S, Yokomatsu T, Shibuya S. N-Glycosylation of 2,3-dideoxyfuranose derivatives having a (diethoxyphosphorothioyl)difluoromethyl group at the 3α-position. Tetrahedron 2003. [DOI: 10.1016/j.tet.2003.09.069] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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12
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Huang P, Ramphal J, Wei J, Liang C, Jallal B, McMahon G, Tang C. Structure-based design and discovery of novel inhibitors of protein tyrosine phosphatases. Bioorg Med Chem 2003; 11:1835-49. [PMID: 12659770 DOI: 10.1016/s0968-0896(03)00039-7] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Protein tyrosine phosphatases (PTPs) are important in the regulation of signal transduction processes. Certain enzymes of this class are considered as potential therapeutic targets in the treatment of a variety of diseases such as diabetes, inflammation, and cancer. However, many PTP inhibitors identified to date are peptide-based and contain a highly charged phosphate-mimicking component. These compounds usually lack membrane permeability and this limits their utility in the inhibition of intracellular phosphatases. In the present study, we have used structure-based design and modeling techniques to explore catalytic-site directed, reversible inhibitors of PTPs. Employing a non-charged phosphate mimic and non-peptidyl structural components, we have successfully designed and synthesized a novel series of trifluoromethyl sulfonyl and trifluoromethyl sulfonamido compounds as PTP inhibitors. This is the first time that an uncharged phosphate mimic is reported in the literature for general, reversible, and substrate-competitive inhibition of PTPs. It is an important discovery because the finding may provide a paradigm for the development of phosphatase inhibitors that enter cells and modify signal transduction.
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Affiliation(s)
- Ping Huang
- SUGEN, Inc., 230 East Grand Ave., South San Francisco, CA 94080, USA.
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13
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Yokomatsu T, Murano T, Akiyama T, Koizumi J, Shibuya S, Tsuji Y, Soeda S, Shimeno H. Synthesis of non-competitive inhibitors of sphingomyelinases with significant activity. Bioorg Med Chem Lett 2003; 13:229-36. [PMID: 12482429 DOI: 10.1016/s0960-894x(02)00888-0] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
A series of short-chain analogues of N-palmitoylsphingosine-1-phosphate, modified by replacement of the phosphate and the long alkenyl side chain with hydrolytically stable difluoromethylene phosphonate and phenyl, respectively, were prepared to study the structure-activity relationship for inhibition of sphingomyelinase. The study revealed that inhibition is highly dependent upon the stereochemistry of the asymmetric centers of the acylamino moiety, and resulted in identification of a non-competitive inhibitor with the same level of inhibitory activity of schyphostatin, the most potent of the few known small molecular inhibitors of sphingomyelinase.
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Affiliation(s)
- Tsutomu Yokomatsu
- School of Pharmacy, Tokyo University of Pharmacy & Life Science, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan.
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14
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Hum G, Lee J, Taylor SD. Synthesis of [difluoro-(3-alkenylphenyl)-methyl]-phosphonic acids on non-crosslinked polystyrene and their evaluation as inhibitors of PTP1B. Bioorg Med Chem Lett 2002; 12:3471-4. [PMID: 12419386 DOI: 10.1016/s0960-894x(02)00768-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A series of [difluoro-(3-alkenylphenyl)-methyl]-phosphonates were prepared on non-crosslinked polystyrene, a soluble polymer support. After cleavage from the support, the resulting phosphonic acids were examined for inhibition with protein tyrosine phosphatase 1B. Compound 20, bearing an alpha,beta-unsaturated allyl ester moiety, was the most potent of this series of compounds, being a reversible, competitive inhibitor with a K(i) of 8.0+/-1.4 microM.
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Affiliation(s)
- Gabriel Hum
- Department of Chemistry, University of Waterloo, Ontario, Canada
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15
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Ahn JH, Cho SY, Ha JD, Chu SY, Jung SH, Jung YS, Baek JY, Choi IK, Shin EY, Kang SK, Kim SS, Cheon HG, Yang SD, Choi JK. Synthesis and PTP1B inhibition of 1,2-naphthoquinone derivatives as potent anti-diabetic agents. Bioorg Med Chem Lett 2002; 12:1941-6. [PMID: 12113814 DOI: 10.1016/s0960-894x(02)00331-1] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
A new series of 1,2-naphthoquinone derivatives was synthesized by various synthetic methods and evaluated for their ability to inhibit protein tyrosine phosphatase 1B (PTP1B). 1,2-Naphthoquinone derivatives with substituent at R(4) position showed submicromolar inhibitory activity, and compound 24 demonstrated 10- to 60-fold selectivity against the tested phosphatases. Also, several 4-aryl-1,2-naphthoquinone derivatives with substituents at R(3), R(6), R(7), or/and R(8) showed submicromolar inhibitory activity and good plasma stability.
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Affiliation(s)
- Jin Hee Ahn
- Medicinal Science Division, Korea Research Institute of Chemical Technology, Taejon 305-600, Republic of Korea
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16
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Soeda S, Shimada T, Koyanagi S, Yokomatsu T, Murano T, Shibuya S, Shimeno H. An attempt to promote neo-vascularization by employing a newly synthesized inhibitor of protein tyrosine phosphatase. FEBS Lett 2002; 524:54-8. [PMID: 12135741 DOI: 10.1016/s0014-5793(02)03002-8] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Vascular endothelial growth factor (VEGF) and its receptors play a key role in angiogenesis. VEGF receptor-2 (VEGFR-2) has a tyrosine kinase domain, and, once activated, induces the phosphorylation of cytoplasmic signaling proteins. The phosphorylated VEGFR-2 may be a substrate for intracellular protein tyrosine phosphatases (PTPs) which prevent VEGF signaling. We synthesized a series of alpha,alpha-difluoro(phenyl)methylphosphonic acids (DFPMPAs) which inhibit the action of PTP. In this study, we test their effects on VEGF-induced angiogenesis. DFPMPA-3, the most effective inhibitor of human PTP-1B, promoted tube formation by human umbilical vein endothelial cells (HUVEC) on Matrigel more effectively than any other DFPMPAs. The inhibitor promoted the VEGF-induced proliferation and migration of HUVEC by inhibiting the dephosphorylation of VEGFR-2. Its effectiveness was proven through neo-vascularization in mice. The present findings suggest that targeting PTP to promote therapeutic neo-vascularization may be a potential strategy.
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Affiliation(s)
- Shinji Soeda
- Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan
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17
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18
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Leung C, Grzyb J, Lee J, Meyer N, Hum G, Jia C, Liu S, Taylor SD. The difluoromethylenesulfonic acid group as a monoanionic phosphate surrogate for obtaining PTP1B inhibitors. Bioorg Med Chem 2002; 10:2309-23. [PMID: 11983529 DOI: 10.1016/s0968-0896(02)00062-7] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Three peptides, 7-9, bearing sulfono(difluoromethyl)phenylalanine (F(2)Smp, 2), a nonhydrolyzable, monoanionic phosphotyrosine mimetic, were prepared and evaluated as PTP1B inhibitors. The most effective inhibitor was the nonapeptide, ELEF(F(2)Smp)MDYE-NH(2), (9) which exhibited a K(i) of 360 nM. A comparison of F(2)Smp-bearing peptides 7 [DADE(F(2)Smp)LNH(2), K(i)=3.4 microM] and 8 [EEDE(F(2)Smp)LNH(2), K(i)=0.74 microM] with their phosphono(difluoromethyl)phenylalanine (F(2)Pmp)-bearing analogues indicated that F(2)Smp is not as effective a pTyr mimetic as F(2)Pmp by 100- to 130-fold. Although F(2)Smp is not as effective as F(2)Pmp, a comparison of peptide 7 with analagous peptides bearing other monoanionic pTyr mimetics recently reported in the literature indicates that F(2)Smp is about 65-fold more effective than any other non-hydrolyzable, monanionic pTyr mimetic reported to date. To further assess the difluoromethylenesulfonic acid (DFMS) group as a monoanionic phosphate mimetic, a series of 24 nonpeptidyl biaryl compounds bearing the DFMS group were prepared using polymer-supported methodologies and screened for PTP1B inhibition. Several of these compounds were selected for further study and their IC(50)'s compared to their difluoromethylenephosphonic (DFMP) analogues. The differences in IC(50)'s between the DFMS and DFMP non-peptidyl compounds was not as great as with the F(2)Smp- and F(2)Pmp-bearing peptides. Possible reasons for this and its implication to the design of small molecule PTP1B inhibitors is discussed.
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Affiliation(s)
- Carmen Leung
- Department of Chemistry, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1
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Yokomatsu T, Takechi H, Akiyama T, Shibuya S, Kominato T, Soeda S, Shimeno H. Synthesis and evaluation of a difluoromethylene analogue of sphingomyelin as an inhibitor of sphingomyelinase. Bioorg Med Chem Lett 2001; 11:1277-80. [PMID: 11392536 DOI: 10.1016/s0960-894x(01)00179-2] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A sphingomyelin analogue 2, in which the long alkenyl chain and the phosphodiester moiety of sphingomyelin were replaced by a phenyl and an isosteric difluoromethylenephosphonic acid, was prepared to evaluate its inhibitory potency to sphingomyelinase. The analogue non-competitively inhibited the neutral sphingomyelinase in bovine brain microsomes with an IC50 of 400 microM. The compound had the ability to suppress tumor necrosis factor alpha-induced apoptosis of PC-12 neurons at a low concentration of 0.1 microM.
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Affiliation(s)
- T Yokomatsu
- School of Pharmacy, Tokyo University of Pharmacy & Life Science, Hachioji, Japan.
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20
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Synthesis of aryldifluoromethylphosphonothioic acids from O, O-diethyl aryldifluoromethylphosphonothioates. J Org Chem 2000; 65:5858-61. [PMID: 10970339 DOI: 10.1021/jo000563t] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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21
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Watanabe T, Suzuki T, Umezawa Y, Takeuchi T, Otsuka M, Umezawa K. Structure–Activity Relationship and Rational Design of 3,4-Dephostatin Derivatives as Protein Tyrosine Phosphatase Inhibitors. Tetrahedron 2000. [DOI: 10.1016/s0040-4020(99)01058-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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22
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Yokomatsu T, Abe H, Yamagishi T, Suemune K, Shibuya S. Convenient Synthesis of Cyclopropylalkanol Derivatives Possessing a Difluoromethylenephosphonate Group at the Ring. J Org Chem 1999; 64:8413-8418. [PMID: 11674770 DOI: 10.1021/jo990922o] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tsutomu Yokomatsu
- School of Pharmacy, Tokyo University of Pharmacy and Life Science 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
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Yokomatsu T, Hayakawa Y, Suemune K, Kihara T, Soeda S, Shimeno H, Shibuya S. Synthesis and biological evaluation of 1,1-difluoro-2-(tetrahydro-3-furanyl)ethylphosphonic acids possessing a N9-purinylmethyl functional group at the ring. a new class of inhibitors for purine nucleoside phosphorylases. Bioorg Med Chem Lett 1999; 9:2833-6. [PMID: 10522701 DOI: 10.1016/s0960-894x(99)00495-3] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
1,1-Difluoro-2-(tetrahydro-3-furanyl)ethylphosphonic acids cis-3 and trans-3 possessing a N9-purinylmethyl functionality at the ring were synthesized and tested as "multi-substrate analogue" inhibitors for purine nucleoside phosphorylases. Radical cyclization of allyic alpha,alpha-difluorophosphonate (E)-7 was applied to construct the alpha,alpha-difluorophosphonate-functionalized tetrahydrofuranyl moiety. The IC50 values of cis-3 and trans-3 for human erythrocyte PNP-catalyzed phosphorylation of inosine were determined to be 88 and 320 nM, respectively. The stereochemistry of the inhibitors was found to affect significantly the inhibitory potency.
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Affiliation(s)
- T Yokomatsu
- School of Pharmacy, Tokyo University of Pharmacy & Life Science, Hachioji, Japan
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