Synthesis and Configuration of the Eight Diastereoisomeric Racemates of Dactyloxene-B. The relative configuration of dactyloxene-B and -C
作者:Bruno Maurer、Arnold Hauser、Walter Thommen、Karl H. Schulte-Elte、G�nther Ohloff
DOI:10.1002/hlca.19800630130
日期:1980.1.23
The eight possible diastereoisomeric racemates of dactyloxene-B have been synthesized by a non-stereoselective route and their configurations and predominant conformations determined by 360-MHz-1H-NMR. and 90.5-MHz-13C-NMR. spectroscopy. Natural dactyloxene-B and -C are shown to have the relative configuration rel-(2R, 5R, 9S, 10R) and rel-(2R, 5S, 9S, 10R), respectively.
dactyloxene-B的八种可能的非对映异构外消旋体已通过非立体选择性途径合成,其构型和主要构象由360-MHz- 1 H-NMR确定。和90.5-MHz- 13 C-NMR。光谱学。天然dactyloxene-B和-C中示出为具有相对构型的rel - (2 - [R,5 - [R 9小号,10 - [R )和相对- (2 - [R,5小号,9小号,10 - [R )表示。