Total Synthesis of 4'-ester Resveratrol Analogs and 8, 9-amido Geldanamycin Analog and toward the Total Synthesis of (-)-Englerin A Yong Wang Department of Chemistry and Biochemistry, BYU Doctor of Philosophy The phytoalexin resveratrol and its 4'-ester analogs have been prepared with a decarbonylative Heck reaction. The deprotecting step has been modified and improved to increase yield and avoid chromatography. A set of resveratrol analogs and resveratrol have been tested with melanoma and pancreatic cell assays. The 8, 9-amido Geldanamycin analog has been synthesized with a convergent route, involving 28 simplified steps in its longest linear sequence. Synthetic methodologies, such as Andrus auxiliary controlled asymmetric anti-glycolate Aldol and selective p-Quinone formation, were employed. The total synthesis of Englerin A starts from (R)-carvone, passed through the modified Farvoskii ring-contraction and ring closing metathesis to get the ring skeleton. Other routes involving isopropyl group installation before closure of the seven-member ring failed. Although there are still problems to build the isopropyl moiety and the bridged ether, several reasonable alternative routes to address the problems have been designed.
College and Department
Physical and Mathematical Sciences; Chemistry and Biochemistry
BYU ScholarsArchive Citation
Wang, Yong, "Total Synthesis of 4'-ester Resveratrol Analogs and 8.9-amido Geldanamycin Analog and Toward the Total Synthesis of (-)-englerin A" (2011). All Theses and Dissertations. 3084.
Resveratrol, Geldanamycin, Englerin A, total synthesis, analog