Synthesis of Eupomatilone-6 and Assignment of Its Absolute Configuration
作者:Mukund K. Gurjar、Bhargava Karumudi、C. V. Ramana
DOI:10.1021/jo0516234
日期:2005.11.1
5. The stereoselective installation of methyl group at C-3 by using LiHMDS and MeI completed the synthesis of racemic eupomatilone-6 (2) and its diastereomer 3. The spectroscopic data of 2 was in full agreement with reported spectra of natural product, thus confirming the revised relative configuration of eupomatilone-6. Similarly, an optically active (3R,4R,5S)-isomer of eupomatilone-6 (23) was prepared