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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Part I Synthesis of Yohimbane Alkaloids Part II Synthetic Study of 3-aminoisoquinolines

Tsai, Shi-Ta 13 June 2000 (has links)
Part I Studies on methodology development of the syntheses of carboline derivatives using Bischler-Napieralski reaction and electror-eduction gave moderate yields. Carbolines were undergone Mannich reaction to give yohimbane alkaloids. We got oxidative carboline products using Bischler-Napieralski reaction. We got carbolines or dimmer by the reaction of electroreduction in different condition. Part II Phenylacetamides using Bischler-Napieralski reaction conditions with acetonitrile as a solvent, gave the 3-amino-isoquinolines. Various amides and various nitriles were undergone Bischler-Napieralski reaction conditions to give 3-aminoiso-quinoline products.
2

Application of Radical Cyclization toward The Synthesis of Alkaloids

Chen, Cheng-Hui 10 July 2003 (has links)
Application of free radical cyclization reaction toward the synthesis of amarylldaceae alkaloids was reported. Copper(I) chloride in tri-n-butyltin hydride and azobisisobutyronitrile were used to proceed radical cyclization. Syntheses of amarylldaceae alkaloids were proceeded using the aforementioned method to give good yields.
3

Sceletium—A review update / doi:10.1016/j.jep.2008.07.043

Gericke, N, Viljoen, AM 09 December 2010 (has links)
It is probable that plants of the genus Sceletium (Mesembryanthemaceae) have been used as masticatories and for the relief of thirst and hunger, to combat fatigue, as medicines, and for social and spiritual purposes by San hunter-gatherers (historically referred to as Bushmen) and Khoi pastoralists (historically referred to as Hottentots) for millennia before the earliest written reports of the uses of these plants by European explorers and settlers. The oral-tradition knowledge of the uses of Sceletium by indigenous peoples has largely been eroded over the last three centuries due to conflicts with settlers, genocidal raids against the San, loss of land, the ravages of introduced diseases, and acculturation. Wild resources of Sceletium have also been severely diminished by over-harvesting, poor veld-management, and possibly also by plant diseases. Sceletium was reviewed almost a decade ago and new results have emerged substantiating some of the traditional uses of one of South Africa’s most coveted botanical assets, and suggesting dietary supplement, phytomedicine and new drug applications. This review aims to collate the fragmented information on past and present uses, the alkaloid chemistry and pharmacological evidence generated on Sceletium.
4

Preparation of polycyclic amines and studies towards manzamine

Crapnell, Katherine Mary January 2000 (has links)
No description available.
5

Dimeric indole and quinolinone alkaloids

Rutherford, M. J. January 1985 (has links)
No description available.
6

Resistance to the vinca alkaloids in Chinese hamster ovary cell lines

Brewer, F. January 1987 (has links)
No description available.
7

Enantiospecific approaches to indole alkaloids

Hollinshead, S. P. January 1987 (has links)
No description available.
8

Approaches towards the total synthesis of the ephedradine alkaloids

Humphrey, G. R. January 1987 (has links)
No description available.
9

Effect of methylxanthines on lactational performance

Hart, A. D. January 1987 (has links)
No description available.
10

A novel approach to the total synthesis of corynanthe indole alkaloids via cyclopentanoid intermediaries

Wingfield, M. January 1985 (has links)
No description available.

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