The total synthesis of lactonamycin has been achieved. The synthesis includes sequential intramolecularconjugateaddition of alcohols to the acetylenic ester, stereoselective glycosylation of the tertiary alcohol, and Michael–Dieckmann type cyclization with the thioester, by which the highly convergent route has been established.
A route for the enantioselective total synthesis of antheridic acid, the antheridium-inducing factor from anemia phyllitidis
作者:E.J. Corey、Hideo Kigoshi
DOI:10.1016/s0040-4039(00)93418-x
日期:1991.9
An effective route for the total synthesis of antheridic acid (1) has been devised in which the initial chiral intermediate 7 is generated by enantioselective catalytic reduction and transformed in a stereocontrolled fashion into key intermediates 9, 10, 13, and 2.