作者:Ian Paterson、Edward A. Anderson、Alison D. Findlay、Christopher S. Knappy
DOI:10.1016/j.tet.2008.01.132
日期:2008.5
convergent synthesis of pteridic acids A and B, epimeric spiroacetal polyketides with potent plant growth promoter properties, is described. The use of boron aldol methodology efficiently achieved the stereocontrolled construction of advanced C1–C11 and C12–C16 subunits, which were coupled to generate a linear (Z)-enone precursor that underwent spiroacetalization with HF·pyridine, providing pteridic acids
描述了具有有效的植物生长促进剂特性的蝶形酸A和B,差向异构螺缩醛聚酮化合物的会聚合成。硼醇羟醛方法的使用有效地实现了高级C1–C11和C12–C16亚基的立体控制结构,这些亚基结合生成线性(Z)-烯酮前体,并通过HF·吡啶进行螺缩醛化,在之后提供蝶呤酸A和B皂化。