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Regio- and stereocontrol in allylic rearrangement : application to enediyne synthesis

Authors Dai, Wei-Min
Lee, Yuk Ha
Issue Date 1997
Source Proceedings of Symposium on Frontiers of Chemistry - in conjunction with the Second Conference for Worldwide Chinese Young Chemists (CWCYC-2) , p. 143-144
Summary Enediynes are a new class of antitumor antibiotics isolated from the fermentation broths of various microorganisms. These antitumor antibiotics possess a 9-/10-membered ring enediyne core which, after bioreductive activation, undergoes a cycloaromatization reaction (the Bergman cyclization) to generate the reactive radical intermediate. The latter species cause DNA strand cleavage via hydrogen atom abstraction from the deoxyribose moiety of DNA. Besides the natural products, synthetic enediynes also exhibit very promising DNA cleavage and cytotoxicity against cancer cell lines. In this presentation, our progress in development of stereo- and regiocontrolled allylic rearrangement of 1,5-diynes into cis-enediynes will be discussed.
Language English
Format Conference paper
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