Concise asymmetric synthesis of (−)-deoxoprosophylline
作者:Ru-Cheng Liu、Jin-Hu Wei、Bang-Guo Wei、Guo-Qiang Lin
DOI:10.1016/j.tetasy.2008.12.014
日期:2008.12
An efficient asymmetricsynthesis of the 2-hydroxymethyl 3,6-disubstituted piperidine alkaloid, (−)-deoxoprosophylline, is described. The key step of this route is the SmI2-mediated cross-coupling of chiral N-tert-butanesulfinyl imine 9 with aldehyde 11 to construct hydroxymethyl-β-amino alcohol 12b in 83% yield and high diastereoselectivity (>99%, de).