作者:John T. Feutrill、Michael J. Lilly、Mark A. Rizzacasa
DOI:10.1021/ol017092x
日期:2002.2.1
[structure: see text] The first asymmetric synthesis of (+)-crocacin D (4) is described. The key steps in the sequence are the stereoselective assembly of the stereotetrad via a substrate-controlled aldol reaction and anti-selective reduction, formation of the (E,E)-diene by a Stille cross-coupling between the stannane 8 and vinyl iodide 9, and the acylation of (Z)-enecarbamate 6 with the acid chloride
[结构:见正文]描述了(+)-crocacin D(4)的第一个不对称合成。该序列中的关键步骤是通过底物控制的醛醇缩合反应进行立体四联体的立体选择性组装和抗选择性还原,通过锡烷8与碘乙烯9之间的Stille交叉偶联形成(E,E)-二烯。 ,和(Z)-烯氨基甲酸酯6被衍生自引入了(Z)-烯酰胺官能团的聚酮化合物片段16的酰氯酰化。