作者:Andreas Job、Michael Wolberg、Michael Müller、Dieter Enders
DOI:10.1055/s-2001-18088
日期:——
The asymmetric synthesis of an α,β-unsaturated δ-lactone equivalent 8 as a key intermediate towards the total synthesis of a variety of natural products bearing such structural motifs is reported. An enzymatic approach was applied to provide both enantiomers of compound 8 using recLBADH (ee > 99%) and baker's yeast (ee = 94%), respectively. The utility of the intermediate was demonstrated by the total synthesis of the non-natural enantiomers of argentilactone [(S)-1] and goniothalamin [(S)-2].
本研究报道了一种δ±,δ²-不饱和δ-内酯等效物 8 的不对称合成,它是全合成具有此类结构基团的多种天然产物的关键中间体。采用酶解方法,利用 recLBADH(ee > 99%)和面包酵母(ee = 94%)分别提供了化合物 8 的两种对映体。精氨内酯[(S)-1] 和 goniothalamin [(S)-2]的非天然对映体的全合成证明了该中间体的实用性。