Towards the synthesis of the ajudazols

QD Chemistry

Egan, Ben A. ; Marquez, Rodolfo

University:University of Glasgow

Department:School of Chemistry

关键词: Ajudazol, isobenzofuran, isochromanone, natural product, total synthesis;   

Others  :  http://theses.gla.ac.uk/4259/1/2013EganPhD.pdf

来源: University of Glasgow

【 摘 要 】

The Ajudazols A and B are secondary metabolites, isolated in 2004 and exhibit anti-fungal and cytotoxic activity. The primary objective of the work presented in this thesis was to expand and develop our novel isobenzofuran oxidative rearrangement methodology for generation of isochromanones, and to apply this methodology towards the total synthesis of the ajudazols. An efficient, high yielding, regio- and diastereoselective oxidative rearrangement sequence has been developed, allowing for the generation of elaborately-functionalised isochromanone structures, from transient isobenzofuran intermediates. A flexible route to the synthesis of the ajudazol B eastern section was achieved, and this research culminated in the synthesis of ent-8-epi-ajudazol B.