Total synthesis of cis-reticulatacin-10-ones A and B: absolute stereochemical assignment
作者:Sherif B. Abdel Ghani、Lynda J. Brown、Bruno Figadère、Richard C. D. Brown
DOI:10.1039/c0ob00259c
日期:——
cis-Reticulatacin-10-ones A and B were synthesised as a predefined mixture of diastereoisomers (dr ∼ 1 : 9) in nine steps from the acid chloride 8, and without the use of hydroxyl protecting groups. Comparison of the chiral HPLC chromatogram of the synthetic sample with that of the natural product isolated from the roots of the tropical fruit tree Annona muricata L. showed the natural product to be
顺式网状甜菜碱-10-one A 和 乙 以预定的非对映异构体混合物(dr〜1:9)的形式在9步内从酸合成 氯化物 8,且不使用羟保护团体。合成样品的手性HPLC色谱图与从热带果树Annona muricata L.的根中分离出的天然产物的手性HPLC色谱图的比较表明,天然产物为A和A的混合物乙 非对映异构体(dr〜1:1)。