Total Synthesis of Stipiamide and Designed Polyenes as New Agents for the Reversal of Multidrug Resistance
作者:Merritt B. Andrus、Salvatore D. Lepore、Timothy M. Turner
DOI:10.1021/ja972603p
日期:1997.12.17
dihydroxylation of the terminal olefin of nonconjugated diene 7 using the Sharpless AD-mix reagent. The precursor to 16, (E,Z)-stannyl diene ester 13, was assembled with high selectivity in a single operation using a tandem syn-addition of tributyltin cuprate to acetylene followed by conjugateaddition to ethyl propiolate. Structural variants 2 and 3 were assembled using palladium-catalyzed Sonogashira