A Novel Synthesis of the Macrocyclic Spermidine Alkaloid (+)-(S)-Dihydroperiphylline
作者:Sergey A. Sergeyev、Manfred Hesse
DOI:10.1002/1522-2675(200201)85:1<161::aid-hlca161>3.0.co;2-l
日期:2002.1
A novel, short, and highly stereoselective synthesis of the macrocyclic spermidine alkaloid (+)-(S)-dihydroperiphylline (15) is described. The key synthetic steps were the stereoselective addition of the chiral amine 1 to the cinnamate 2 and cyclization of the bis[toluene-4-sulfonamide] precursor 12 in the presence of Cs2CO3 as a template. Unambiguous assignments of the signals in both the 1H- and
描述了大环亚精胺生物碱 (+)-(S)-dihydroperiphylline (15) 的新颖、短且高度立体选择性合成。关键的合成步骤是在 Cs2CO3 作为模板存在的情况下,将手性胺 1 立体选择性加成到肉桂酸酯 2 和双 [甲苯-4-磺酰胺] 前体 12 的环化。15 的 1H-和 13C-NMR 光谱中的信号的明确分配是通过 2D NMR 光谱实现的。