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Yadav M, Krishnamurthy R. Bis(dimethylamino)phosphorodiamidate: A Reagent for the Regioselective Cyclophosphorylation of cis-Diols Enabling One-Step Access to High-Value Target Cyclophosphates. Org Lett 2019; 21:7400-7404. [PMID: 31469285 DOI: 10.1021/acs.orglett.9b02694] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Bis(dimethylamino)phosphorodiamidate (BDMDAP) enables an efficient and one-pot cyclophosphorylation of vicinal cis-diol moiety of polyol-organics of biological importance without the need for protecting group chemistry and is amenable to large-scale reactions. The utility of this reagent is demonstrated through the synthesis of high-value targets such as cyclic phosphates of myo-inositol, nucleosides, metabolites, and drug molecules.
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Affiliation(s)
- Mahipal Yadav
- Department of Chemistry , The Scripps Research Institute , 10550 North Torrey Pines Road , La Jolla , California 92037 , United States.,NSF-NASA Center for Chemical Evolution , Atlanta , Georgia 30332 , United States
| | - Ramanarayanan Krishnamurthy
- Department of Chemistry , The Scripps Research Institute , 10550 North Torrey Pines Road , La Jolla , California 92037 , United States.,NSF-NASA Center for Chemical Evolution , Atlanta , Georgia 30332 , United States
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2
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Gössinger E. Chemistry of the Secondary Metabolites of Termites. PROGRESS IN THE CHEMISTRY OF ORGANIC NATURAL PRODUCTS 2019; 109:1-384. [PMID: 31637529 DOI: 10.1007/978-3-030-12858-6_1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Isolation, structure determination, synthesis, and biochemistry of the low-molecular-weight compounds of the secretion of exocrine glands of termites are described, with an emphasis on pheromones and defensive compounds.
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Affiliation(s)
- Edda Gössinger
- Institute of Chemistry, University of Vienna, Vienna, Austria.
- , Mistelbach, Austria.
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Arnott ZLP, Nozaki S, Monteiro DCF, Morgan HE, Pearson AR, Niki H, Webb ME. The Mechanism of Regulation of Pantothenate Biosynthesis by the PanD-PanZ·AcCoA Complex Reveals an Additional Mode of Action for the Antimetabolite N-Pentyl Pantothenamide (N5-Pan). Biochemistry 2017; 56:4931-4939. [PMID: 28832133 PMCID: PMC5724930 DOI: 10.1021/acs.biochem.7b00509] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
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The
antimetabolite pentyl pantothenamide has broad spectrum antibiotic
activity but exhibits enhanced activity against Escherichia
coli. The PanDZ complex has been proposed to regulate the
pantothenate biosynthetic pathway in E. coli by limiting
the supply of β-alanine in response to coenzyme A concentration.
We show that formation of such a complex between activated aspartate
decarboxylase (PanD) and PanZ leads to sequestration of the pyruvoyl
cofactor as a ketone hydrate and demonstrate that both PanZ overexpression-linked
β-alanine auxotrophy and pentyl pantothenamide toxicity are
due to formation of this complex. This both demonstrates that the
PanDZ complex regulates pantothenate biosynthesis in a cellular context
and validates the complex as a target for antibiotic development.
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Affiliation(s)
- Zoe L P Arnott
- Astbury Centre for Structural Molecular Biology and School of Chemistry, University of Leeds , Leeds LS2 9JT, U.K.,Hamburg Center for Ultrafast Imaging, Institute of Nanostructure and Solid State Physics, University of Hamburg , Luruper Chaussee 149, Hamburg 22761, Germany
| | - Shingo Nozaki
- Microbial Genetics Laboratory, Genetics Strains Research Center, National Institute of Genetics , 1111 Yata, Mishima, Shizuoka 411-8540, Japan
| | - Diana C F Monteiro
- Astbury Centre for Structural Molecular Biology and School of Chemistry, University of Leeds , Leeds LS2 9JT, U.K.,Hamburg Center for Ultrafast Imaging, Institute of Nanostructure and Solid State Physics, University of Hamburg , Luruper Chaussee 149, Hamburg 22761, Germany
| | - Holly E Morgan
- Astbury Centre for Structural Molecular Biology and School of Chemistry, University of Leeds , Leeds LS2 9JT, U.K
| | - Arwen R Pearson
- Hamburg Center for Ultrafast Imaging, Institute of Nanostructure and Solid State Physics, University of Hamburg , Luruper Chaussee 149, Hamburg 22761, Germany
| | - Hironori Niki
- Microbial Genetics Laboratory, Genetics Strains Research Center, National Institute of Genetics , 1111 Yata, Mishima, Shizuoka 411-8540, Japan.,Department of Genetics, Graduate University for Advanced Studies (Sokendai) , 1111 Yata, Mishima, Shizuoka 411-8540, Japan
| | - Michael E Webb
- Astbury Centre for Structural Molecular Biology and School of Chemistry, University of Leeds , Leeds LS2 9JT, U.K
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4
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One flask synthesis of 2′,3′-cyclic nucleoside monophosphates from unprotected nucleosides using activated cyclic trimetaphosphate. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.10.076] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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5
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Zhang W, Chen C, Cao R, Maurmann L, Li P. Inhibitors of polyhydroxyalkanoate (PHA) synthases: synthesis, molecular docking, and implications. Chembiochem 2014; 16:156-166. [PMID: 25394180 DOI: 10.1002/cbic.201402380] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Indexed: 11/06/2022]
Abstract
Polyhydroxyalkanoate (PHA) synthases (PhaCs) catalyze the formation of biodegradable PHAs that are considered to be ideal alternatives to non-biodegradable synthetic plastics. However, study of PhaCs has been challenging because the rate of PHA chain elongation is much faster than that of initiation. This difficulty, along with lack of a crystal structure, has become the main hurdle to understanding and engineering PhaCs for economical PHA production. Here we report the synthesis of two carbadethia CoA analogues--sT-CH2-CoA (26 a) and sTet-CH2-CoA (26 b)--as well as sT-aldehyde (saturated trimer aldehyde, 29), as new PhaC inhibitors. Study of these analogues with PhaECAv revealed that 26 a/b and 29 are competitive and mixed inhibitors, respectively. Both the CoA moiety and extension of PHA chain will increase binding affinity; this is consistent with our docking study. Estimation of the Kic values of 26 a and 26 b predicts that a CoA analogue incorporating an octameric hydroxybutanoate (HB) chain might facilitate the formation of a kinetically well-behaved synthase.
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Affiliation(s)
- Wei Zhang
- Department of Chemistry, Kansas State Univerity, Manhattan, KS 66506 (USA)
| | - Chao Chen
- Department of Chemistry, Kansas State Univerity, Manhattan, KS 66506 (USA)
| | - Ruikai Cao
- Department of Chemistry, Kansas State Univerity, Manhattan, KS 66506 (USA)
| | - Leila Maurmann
- Department of Chemistry, Kansas State Univerity, Manhattan, KS 66506 (USA)
| | - Ping Li
- Department of Chemistry, Kansas State Univerity, Manhattan, KS 66506 (USA)
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