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 3 of 3 for “"Cripowellin"”.
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Asymmetrische Synthesen von Attenol A und B 1 (+)-Strictifolion und des 1-epi-Aglycons der Cripowelline A und B
… AG reported on two new Amaryllidaceae-alkaloids, cripowellin A and B, which had been isolated from bulbs and roots of Crinum powellii. Their aglycon consists of a [5.3.2]-bicyclic core, an unprecedented structure among the Amaryllidaceae-alkaloids. In addition, both the cripowellins and their …
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Versuche zur ersten Totalsynthese des Aglycons der Cripowelline A und B und erste asymmetrische Synthese von Tropional
… At Bayer AG in Leverkusen two novel alkaloids – Cripowelline A and B – were isolated from extracts of Crinum powellii. Both alkaloids showed a broad insecticidal effect. Within this thesis two different strategies were developed, which should allow an efficient synthesis of the aglycon of the …
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Isolation, Structure Elucidation, and Total Synthesis of Biologically Active Natural Products from Plants
As a part of the continuing search for bioactive compounds with the Madagascar International Cooperative Biodiversity Group (ICBG), and in collaboration with the Natural Products Discovery Institute of the Institute for Hepatitis and Virus Research (IHVR), thirteen plant extracts were investigated …