Synthesis of the title compound represents the first construction of any of these potent, antitumor Annonaceous acetogenins with the entire relative stereochemistry in place. Palladium(0)-mediated crossed diyne coupling and the use of three, natural, α-hydroxy acids as the origin of all absolute stereochemistry highlight this flexible approach that sets the stage for access to structural analogs for further study.
Bibliographical noteFunding Information:
This investigation was supported by grant GM-34492 awarded by the DHHS.
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