A short and efficient total synthesis of the cytotoxic (+)-goniodiol and (+)-9-deoxygoniopypyrone-Science-Chemical Encyclopedia-lookchem

A short and efficient total synthesis of the cytotoxic (+)-goniodiol and (+)-9-deoxygoniopypyrone (cas 136685-37-5)
Add time:09/06/2019 Source:sciencedirect.com

(+)-Goniodiol 7 and (+)-9-deoxygoniopypyrone 8, belonging to the group of styryllactones, have been synthesized in five steps and 75% yield respectively from C4-esters 1a and 1b. The key step of these syntheses is a triflate-sulfone coupling which allowed a rapid construction of the backbone of the title compounds as well as the efficient installation of a masked Z-acrylate moiety.

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Next: Stereocontrolled syntheses of novel styryl lactones, (+)-goniodiol, (+)-goniotriol, (+)-8-acetylgoniotriol, (+)-goniofufurone, (+)-9-deoxygoniopypyrone (cas 136685-37-5), (+)-goniopypyrone, and (+)-altholactone from common intermediates and cytotoxicity of their congeners)

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