New Chiral Pool Approach to Anthracyclinones. The Stereoselective Synthesis of Idarubicinone
作者:Osman Achmatowicz、Barbara Szechner
DOI:10.1021/jo026354l
日期:2003.3.1
present work, a new chiral pool approach has been developed for the synthesis of anthracyclinones. Thus, enone 8, readily available from l-rhamnose, has been converted via addition of 2,5-dimethoxybenzyllithium to the carbonyl group and a series of six reactions into a suitably protected aldehyde 21. The SnCl(4)-promoted stereospecific cyclization of the latter afforded enantiopure key intermediate 22