Search Constraints

Start Over
Filtering by: Creator Jackson, Alexis M. Remove constraint Creator: Jackson, Alexis M. Degree Field Chemistry Remove constraint Degree Field: Chemistry Subject Alkaloids -- Synthesis Remove constraint Subject: Alkaloids -- Synthesis

Search Results

  • Total synthesis of (-)-7-epicylindrospermopsin

    Creator:
    Hansen, Joshua D.
    Abstract:
    The first asymmetric synthesis of (-)-7-epicylindrospermopsin via intramolecular nitrone cycloaddition is described. The synthesis utilized a convergent approach to prepare the cycloaddition precursor 176, which was assembled by condensation of hydroxylamine 175 with aldehyde 145. Hydroxylamine 175 was synthesized from ethylene glycol (166) in seven steps. Aldehyde 145 was completed...
    Resource Type:
    Dissertation
    Full Text:
    (C15H21N507S) was determined by positive ion HRFABMS in a glycerol matrix (M+H) m/z 416.1236, Ll =0.4 mmu

  • Synthetic studies on necic acids of pyrrolizidine alkaloids

    Creator:
    Lee, Nadine Chauyi
    Resource Type:
    Dissertation
    Full Text:
    . Dillon, Neal J. Green, Yoshio Takeuchi, Mitchell D. Nambu, Randy W. Jackson, Neil S. Cutshall, Mark A

  • Studies on nitrogen containing secondary metabolites from terrestrial and marine origin

    Creator:
    Barrios Sosa, Ana Carolina
    Abstract:
    PART I. A deuterium exchange analysis of 2,5-dihydroxyacetanilide (5) in the absence and presence of DHAE II was performed to test the nucleophilicity of the substrate in the absence and presence of catalyst. In addition, inhibition studies using 1,4-dihydroxybenzene were performed to determine the role that the N-acetyl side chain...
    Resource Type:
    Dissertation
    Full Text:
    classical Michaelis-Menten kinetics with an apparent Km of 10.7 ± 1.8 M and an apparent V of 0.0043