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I. Isolation and Characterization of Bioactive Compounds From Suriname and Madagascar flora. II. A Synthetic Approach to Lucilactaene

As part of an International Cooperative Biodiversity Group (ICBG), extracts of plants from Suriname and Madagascar were bioassayed for cytotoxicity and antimalarial activity. Six cytotoxic extracts and one potential antimalarial were selected for fractionation, and yielded a number of bioactive compounds which were characterized by spectroscopy methods. Craspidospermum verticillatum (Apocynaceae) yielded four known indole alkoids. Casimirella sp (Icacinaceae) gave three new and five known diterpenoids. Pentopetia androsaemifolia (Apocynaceae) afforded one new and three known cardenolide glycosides. Physalis angulata (Solanaceae) yielded seven known physalins. Roupellina boivinnii (Apocynaceae) yielded four known and three new cardenolide glycosides, and three known cucurbitacins were isolated from Octolepis aff. dioica (Thymelaeaceae).

In addition to these structural studies, a synthetic approach to lucilactaene, a cell cycle inhibitor was developed. / Ph. D.

Identiferoai:union.ndltd.org:VTETD/oai:vtechworks.lib.vt.edu:10919/29973
Date30 January 2006
CreatorsAdou, Eba
ContributorsChemistry, Kingston, David G. I., Long, Timothy E., Deck, Paul A., Tanko, James M., Etzkorn, Felicia A.
PublisherVirginia Tech
Source SetsVirginia Tech Theses and Dissertation
Detected LanguageEnglish
TypeDissertation
Formatapplication/pdf
RightsIn Copyright, http://rightsstatements.org/vocab/InC/1.0/
RelationAdouebaetdpdf22.pdf

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