Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"Sesquiterpenoid"”.
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Antiproliferative Natural Products from the Madagascar Rainforest
… various reasons. A multi-step synthesis of the sesquiterpenoid, (7R*)-opposite-4(15)-ene-1beta,7-diol, was also described. The first chapter of this dissertation reviews the new compounds isolated from Malagasy plants and marine organism in the last two decades. Chapters II to VI discuss the …
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Enantioselective Syntheses and Chemical Investigations of Plant-Derived Bioactive Volatile Compounds
… and (d) rearrangements of various sesquiterpenoid derivatives; the latter focuses on the construction ofƒndelta, epsilon-unsaturated carbonyl compounds, hetero Pauson-Khand substrates, via [3,3]-sigmatropic rearrangements.
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Role of Subcellular Differentiation in Plant Disease Resistance
… one class of endproducts of the pathway are sesquiterpenoid phytoalexins, antibiotic compounds produced by plants in response to pathogens. We are interested in the role of the defense-inducible isoforms of HMGR in phytoalexin production and disease resistance. Transgenic tobacco, …
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Terpenoid metabolites from three dorid nudibranchs and a new bromotryptamine derivative from the Northeast Pacific sponge Plocamissa igzo
… the British Columbian coast revealed the drimane sesquiterpenoid albicanylacetate (72) to be the most widely distributed metabolite. Specimensof the nudibranch collected at Rennell Sound contained thesesquiterpenoid metabolites 68, 69 and 78-80 which could be traced to a locally abundant prey …
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Breaking the MF curse: the regulatory role of the Methyl farnesoate – MEKRE93 pathway in crustacean molting
… hormone 20-hydroxyecdysone (20-E) and the sesquiterpenoid juvenile hormone (JH) control insect molting and development, respectively. On the other hand, crustacean molting is primarily regulated through the endocrine crosstalk between 20-E and the neuropeptide molt-inhibiting hormone (MIH). …
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Underlying mechanisms of juvenile hormone (JH) and its analog in regulating mosquito reproduction
… tightly regulated by the endocrine system. The sesquiterpenoid insect hormone, Juvenile hormone (JH), plays a crucial role in mosquito reproductive maturation. JH signaling pathways consist of a hierarchy of transcriptional regulators that modulate the transcriptional responses to this hormone. …
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Structural and Synthetic Studies of Potential Antitumor Natural Products
… extract of Chiloscyphus rivularis yielded eight sesquiterpenoids, and detailed spectroscopic interpretation led to the assignment of their structures as 12-hydroxychiloscyphone, chiloscypha-2,7-dione, 12-hydroxychiloscypha-2,7-dione, chiloscypha-2,7,9-trione, rivulalactone, 4-hydroxy …
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Discovery and Delivery of Bioactive Natural Products
As a part of search for bioactive natural products from the plants in collaboration with the Natural Products Discovery Institute (NPDI), ten plant extracts were investigated for their antiplasmodial activity against Plasmodium falciparum Dd2 strain. Twenty-eight compounds were isolated, and twelve …