The original macrodiolide structure proposed for feigrisolide C was incorrect. The true structure of feigrisolide C was identified as (2'S,3'S,6'R,8'R)-homononactoyl (2R,3R,6S,8S)-nonactic acid, which was confirmed by total synthesis.
Stereoselective synthesis of (±)-methyl homononactate and (±)-methyl 8-epi-homononactate
作者:Barry Lygo
DOI:10.1016/s0040-4020(01)86218-9
日期:1988.1
A stereoselective route to (±)-methyl homononactate (4b) and (±)-methyl 8-epi-homononactale (5b), synthetic precursors to the antibiotic tetranactin, is presented. Key steps involve employing the regioseleclive ring opening of l-(benzyloxy)but-3-ene oxide (8) with the dianion derived from methyl(2-methyl, 3-oxo)butanoate (9), and the stereoselective addition of dialkyl zinc species to a β-alkoxyaldehyde
Five new derivatives of nonactic and homo-nonactic acids from Streptomyces globisporus
作者:Tomáš Řezanka、Jaroslav Spı́žek、Věra Přikrylová、Aleš Prell、Valery M Dembitsky
DOI:10.1016/j.tet.2004.04.006
日期:2004.5
and homononactic acids and their lactones, dilactones and tetralactones, five new compounds, namely homononactyl-nonactoate, a dilactone consisting of nonactic and homononactic acids and three cyclic trimers with nonactic and homononactic acids, were isolated from a strain of Streptomyces globisporus. Their structures, including the absoluteconfigurations of the hydroxyl and methyl groups, were determined