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Renner J, Smith SR, Cowley JM, Louie J. Improved Total Synthesis of Indolizidine and Quinolizidine Alkaloids via Nickel-Catalyzed (4 + 2) Cycloaddition. J Org Chem 2022; 87:8871-8883. [PMID: 35759553 DOI: 10.1021/acs.joc.2c00365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A Ni-catalyzed (4 + 2) cycloaddition of bicyclic 3-azetidinones and alkynes was developed to access indolizidine and quinolizidine alkaloids. A key element was the development of a diazomethylation procedure that allows the efficient synthesis of bicyclic azetidinones from pyroglutamic and 6-oxopiperidine-2-carboxylic acid. A ligand screening led to improved regioselectivity and enantiopurity during the Ni-catalyzed (4 + 2) cycloaddition. This straightforward methodology was leveraged to synthesize (+)-ipalbidine, (+)-septicine, (+)-seco-antofine, and (+)-7-methoxy-julandine.
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Affiliation(s)
- Jonas Renner
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112-8450, United States
| | - Sleight R Smith
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112-8450, United States
| | - Jacob M Cowley
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112-8450, United States
| | - Janis Louie
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112-8450, United States
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Yang H, Tang JA, Greenberg MM. Synthesis of Oligonucleotides Containing the N 6 -(2-Deoxy-α,β-d-erythropentofuranosyl)-2,6-diamino-4-hydroxy-5-formamidopyrimidine (Fapy⋅dG) Oxidative Damage Product Derived from 2'-Deoxyguanosine. Chemistry 2020; 26:5441-5448. [PMID: 32271495 DOI: 10.1002/chem.201905795] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Indexed: 12/19/2022]
Abstract
N6 -(2-Deoxy-α,β-d-erythropentofuranosyl)-2,6-diamino-4-hydroxy-5-formamidopyrimidine (Fapy⋅dG) is a major DNA lesion produced from 2'-deoxyguanosine under oxidizing conditions. Fapy⋅dG is produced from a common intermediate that leads to 7,8-dihydro-8-oxo-2'-deoxyguanosine (8-OxodGuo), and in greater quantities in cells. The impact of Fapy⋅dG on DNA structure and function is much less well understood than that of 8-OxodGuo. This is largely due to the significantly greater difficulty in synthesizing oligonucleotides containing Fapy⋅dG than 8-OxodGuo. We describe a synthetic approach for preparing oligonucleotides containing Fapy⋅dG that will facilitate intensive studies of this lesion in DNA. A variety of oligonucleotides as long as 30 nucleotides are synthesized. We anticipate that the chemistry described herein will provide an impetus for a wide range of studies involving Fapy⋅dG.
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Affiliation(s)
- Haozhe Yang
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles St., Baltimore, MD 21218, USA
| | - Joel A Tang
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles St., Baltimore, MD 21218, USA
| | - Marc M Greenberg
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles St., Baltimore, MD 21218, USA
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Affiliation(s)
- A. Bauder
- Laboratorium für Physikalische Chemie, Eidgenössische Technische Hochschule , CH-8093 Zürich, Switzerland
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Vlietstra EJ, Zwikker JW, Nolte RJM, Drenth W. Trimethylacetic formic anhydride. Improved preparation and use as a highly efficient and selective N-formylating reagent. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19821011208] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Koer FJ, de Kok AJ, Romers C. The conformation of non-aromatic ring compounds 73: The molecular and crystal structure of β-chloroglutaric anhydride. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19720910610] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Hurley MD, Ball JC, Wallington TJ, Toft A, Nielsen OJ, Bertman S, Perkovic M. Atmospheric Chemistry of a Model Biodiesel Fuel, CH3C(O)O(CH2)2OC(O)CH3: Kinetics, Mechanisms, and Products of Cl Atom and OH Radical Initiated Oxidation in the Presence and Absence of NOx. J Phys Chem A 2007; 111:2547-54. [PMID: 17388358 DOI: 10.1021/jp0667341] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Relative rate techniques were used to study the kinetics of the reactions of Cl atoms and OH radicals with ethylene glycol diacetate, CH3C(O)O(CH2)2OC(O)CH3, in 700 Torr of N2/O2 diluent at 296 K. The rate constants measured were k(Cl + CH3C(O)O(CH2)2OC(O)CH3) = (5.7 +/- 1.1) x 10(-12) and k(OH + CH3C(O)O(CH2)2OC(O)CH3) = (2.36 +/- 0.34) x 10(-12) cm3 molecule-1 s-1. Product studies of the Cl atom initiated oxidation of ethylene glycol diacetate in the absence of NO in 700 Torr of O2/N2 diluent at 296 K show the primary products to be CH3C(O)OC(O)CH2OC(O)CH3, CH3C(O)OC(O)H, and CH3C(O)OH. Product studies of the Cl atom initiated oxidation of ethylene glycol diacetate in the presence of NO in 700 Torr of O2/N2 diluent at 296 K show the primary products to be CH3C(O)OC(O)H and CH3C(O)OH. The CH3C(O)OCH2O* radical is formed during the Cl atom initiated oxidation of ethylene glycol diacetate, and two loss mechanisms were identified: reaction with O2 to give CH3C(O)OC(O)H and alpha-ester rearrangement to give CH3C(O)OH and HC(O) radicals. The reaction of CH3C(O)OCH2O2* with NO gives chemically activated CH3C(O)OCH2O* radicals which are more likely to undergo decomposition via the alpha-ester rearrangement than CH3C(O)OCH2O* radicals produced in the peroxy radical self-reaction.
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Affiliation(s)
- M D Hurley
- Physical & Environmental Sciences Department, Ford Motor Company, Mail Drop SRL-3083, Dearborn, Michigan 48121, USA.
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Christensen LK, Ball JC, Wallington TJ. Atmospheric Oxidation Mechanism of Methyl Acetate. J Phys Chem A 1999. [DOI: 10.1021/jp993127n] [Citation(s) in RCA: 72] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- L. K. Christensen
- Ford Research Laboratory, SRL-3083, Ford Motor Company, P.O. Box 2053, Dearborn, Michigan 48121-2053
| | - J. C. Ball
- Ford Research Laboratory, SRL-3083, Ford Motor Company, P.O. Box 2053, Dearborn, Michigan 48121-2053
| | - T. J. Wallington
- Ford Research Laboratory, SRL-3083, Ford Motor Company, P.O. Box 2053, Dearborn, Michigan 48121-2053
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Wu G, Shlykov S, Van Alsenoy C, Geise HJ, Sluyts E, Van der Veken BJ. Formic Acetic Anhydride in the Gas Phase, Studied by Electron Diffraction and Infrared Spectroscopy, Supplemented with ab-Initio Calculations of Geometries and Force Fields. ACTA ACUST UNITED AC 1996. [DOI: 10.1021/jp9607982] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Yamamoto A. Palladium-Catalyzed Double and Single Carbonylation of Aryl Halides and Allylic Compounds. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 1995. [DOI: 10.1246/bcsj.68.433] [Citation(s) in RCA: 96] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Palladium-catalysed hydroxycarbonylation of vinyl and aryl triflates: synthesis of α,β-unsaturated and aromatic carboxylic acids. Tetrahedron Lett 1992. [DOI: 10.1016/s0040-4039(00)74824-6] [Citation(s) in RCA: 61] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Kawaki T, Hashimoto H. Reactions of Cuprous Acetate with Organic Halides. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 1972. [DOI: 10.1246/bcsj.45.3130] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Vledder H, Mijlhoff F, Leyte J. Vibrational spectra and normal coordinate analysis of formic acetic anhydride. J Mol Struct 1971. [DOI: 10.1016/0022-2860(71)87061-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Becker HGO, Witthauer J, Sauder N, West G. Relais-Synthesen mit 4-Amino-1.2.4-triazol. VI. Gekoppelte Synthese von 2-substituierten 1.3.4-Oxdiazolen und 3-Phenyl-1.2.4-triazol. ACTA ACUST UNITED AC 1969. [DOI: 10.1002/prac.19693110416] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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