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Synthesis of marine natural products. part I, Cryptophycins-1, -3, -4, -24, and -29, part II, Polycavernoside A

Creator:: Robarge, Lonnie A.
Resource Type:: Dissertation
Full Text:: , -3, -4, -24, and -29, part II, Polycavernoside A. AN ABSTRACT OF THE DISSERTATION OF Lonnie A

Asymmetric synthesis of cyclopropanes via a "zipper reaction"

Creator:: Lincoln, Christopher M.
Abstract:: The rearrangement of a homoallyl cation to a cyclopropylcarbinyl cation is thought to play a role in the biogenesis of a variety of cyclopropane-containing natural products,¹ a hypothesis which has previously led to the design of successful biomimetic syntheses of several natural products.² The strategy underlying this approach to cyclopropane...
Resource Type:: Dissertation
Full Text:: Synthesis of Cyclopropanes via a "Zipper Reaction" Abstract approved: James D. White The rearrangement of

Approaches toward the asymmetric synthesis of pillaromycin A

Creator:: Nolen, Ernest G.
Resource Type:: Dissertation
Full Text:: A AN ABSTRACT OF THE THESIS OF Ernest G. Nolen Jr. for the degree of Doctor of Philosophy in

The isolation and structure of leptosphaerin : a metabolite of the marine ascomycete, Leptosphaeria oraemaris (Linder) and A synthesis of the marine toxin, 9-isocyanopupukeanane

Creator:: Schiehser, Guy Alan
Abstract:: The ethyl acetate extract of the culture filtrate of the marine Ascomycete, Leptosphaeria oraemaris (Linder) yielded a novel metabolite designated by the common name leptosphaerin. An x-ray crystallographic structure analysis was disproved by the synthesis of 3-acetoxy-S-(1,2-dihydroxyethyl)- 3-pyrrolin-2-one 1, starting with N,N-dibenzylhydroxylamine 47 and D-mannitol 44. Oxidation of 47 followed...
Resource Type:: Dissertation
Full Text:: 4.80 J=5Hz, removed by D20 exchange) while the secondary hydroxyl was obscured in a two proton

Cis-2,5-diaminobicyclo[2.2.2]octane : a novel C₂-symmetric scaffold for asymmetric catalysis

Creator:: Shaw, Subrata
Abstract:: This thesis describes the development of a new enantioselective synthetic method employing chiral cis-2,5-diaminobicyclo[2.2.2]octane-based organometallic catalysts. The significance of this new method to organic synthesis is illustrated with preparation of enantioenriched products that are transformed to important pharmaceutical agents. Chapter 1 provides a brief historical overview of asymmetric catalysis, especially...
Resource Type:: Dissertation
Full Text:: Acta, 1991,1078, 411. 5. Blaser, H. U. Chem. Rev. 1992, 92, 935. 6. (a) De Vries, J. G. Encyclopedia

Synthetic studies on marine natural products : I. Stereoselective synthesis of E,Z-1,3-Dienes by tandem nucleophilic addition to a dienylphosphonium salt followed by Wittig reaction. II. Synthesis of cyclopropyl oxylipins by a cation mediated carbocyclization

Creator:: Jensen, Mark S.
Resource Type:: Dissertation
Full Text:: Carbocyclization by Mark S. Jensen Jr. A DISSERTATION submitted to Oregon State University in partial

Synthetic studies on natural products : Part I. The total synthesis of ±-euonyminol and ±-3,4-dideoxymaytol : Part II. The absolute configuration and enantioselective synthesis of curacin A

Creator:: Kim, Tae-Seong
Resource Type:: Dissertation
Full Text:: synthesis of curacin A AN ABSTRACT OF THE DISSERTATION OF Tae-Seong Kim for the degree of Doctor of

Natural product synthesis via cyclobutanes : part I, Asymmetric synthesis of (+)-byssochlamic acid, part II, An approach to the nootropic agent huperzine A

Creator:: Kim, Jungchul
Abstract:: PART I. Asymmetric syntheses of both natural (+)- and nonnatural (-)-byssochlamic acid via a [2+2] photoaddition-cycloreversion strategy are described. X-ray crystallographic analysis of the cyclohexylamine salt 99 showed that the structure of the monomethyl ester 100 from esterase hydrolysis of 44 was originally misassigned as 56. The enantiomeric relationship of...
Resource Type:: Dissertation
Full Text:: , Asymmetric synthesis of (+)-byssochlamic acid, part II, An approach to the nootropic agent huperzine A AN

Synthetic studies n bioactive natural products. Part I, An approach towards the nootrophic agent huperzine A. Part II, Synthesis of the tricarbonyl subunit of rapamycin

Creator:: Jeffrey, Scott C.
Resource Type:: Dissertation
Full Text:: approach towards the nootrophic agent huperzine A. Part II, Synthesis of the tricarbonyl subunit of

Part I : synthesis of azetidin-2-ones from pyrazolidin-3-ones ; Part II : synthesis of a subunit of the immunosuppressant FK-506

Creator:: Toske, Steven Gerald
Resource Type:: Dissertation
Full Text:: -ones ; Part II : synthesis of a subunit of the immunosuppressant FK-506 AN ABSTRACT OF THE THESIS OF

ScholarsArchive@OSU

Synthesis of marine natural products. part I, Cryptophycins-1, -3, -4, -24, and -29, part II, Polycavernoside A

Asymmetric synthesis of cyclopropanes via a "zipper reaction"

Approaches toward the asymmetric synthesis of pillaromycin A

The isolation and structure of leptosphaerin : a metabolite of the marine ascomycete, Leptosphaeria oraemaris (Linder) and A synthesis of the marine toxin, 9-isocyanopupukeanane

Cis-2,5-diaminobicyclo[2.2.2]octane : a novel C₂-symmetric scaffold for asymmetric catalysis

Synthetic studies on marine natural products : I. Stereoselective synthesis of E,Z-1,3-Dienes by tandem nucleophilic addition to a dienylphosphonium salt followed by Wittig reaction. II. Synthesis of cyclopropyl oxylipins by a cation mediated carbocyclization

Synthetic studies on natural products : Part I. The total synthesis of ±-euonyminol and ±-3,4-dideoxymaytol : Part II. The absolute configuration and enantioselective synthesis of curacin A

Natural product synthesis via cyclobutanes : part I, Asymmetric synthesis of (+)-byssochlamic acid, part II, An approach to the nootropic agent huperzine A

Synthetic studies n bioactive natural products. Part I, An approach towards the nootrophic agent huperzine A. Part II, Synthesis of the tricarbonyl subunit of rapamycin

Part I : synthesis of azetidin-2-ones from pyrazolidin-3-ones ; Part II : synthesis of a subunit of the immunosuppressant FK-506

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