Stereoselective synthesis of kurzilactone and determination of its absolute configuration
作者:Biao Jiang、Zili Chen
DOI:10.1016/s0957-4166(01)00506-7
日期:2001.11
Both (5S,7S)- and (5R,7S)-isomers of kurzilactone were synthesized from a ‘chiral epoxy-aldehyde synthon’ through the coupling of an acyl anion equivalent and the dianion of acetoacetate, followed by formation of the Kawa-type lactone by cyclization and elimination. Comparing the spectral data of the synthesized and naturally occurring kurzilactone, the C(5)- and C(7)-stereogenic centers of the natural