[GRAPHICS]An enantioselective synthesis of slagenins A-C (la-c) is described in which their absolute stereochemistries were established. The key step in the synthesis involved the efficient condensation of 2-methoxy-dIhydro-furan-3-one 9 and urea to construct the slagenin bicycle core.
Enantioselective Total Syntheses of Slagenins A−C and Their Antipodes
作者:Biao Jiang、Jia-Feng Liu、Sheng-Yin Zhao
DOI:10.1021/jo026773i
日期:2003.3.1
Full details of the totalsyntheses of slagenins A-C (1a-c) and their antipodes (2a-c), novel bromopyrrole alkaloids with a unique tetrahydrofuro[2,3-d]imidazolidin-2-one moiety, are described in which their absolute stereochemistry was established. The key step in the syntheses involves the efficient condensation of dihydrofuran-3-one or glyoxal with urea to construct the slagenin bicycle core.
[GRAPHICS]An enantioselective synthesis of slagenins A-C (la-c) is described in which their absolute stereochemistries were established. The key step in the synthesis involved the efficient condensation of 2-methoxy-dIhydro-furan-3-one 9 and urea to construct the slagenin bicycle core.