Addition of Allylic Metals to α-Aminoaldehydes. Application to the Synthesis of Statine, Ketomethylene and Hydroxyethylene Dipeptide Isosteres
作者:J.V.N. Vara Prasad、Daniel H. Rich
DOI:10.1016/s0040-4039(00)98790-2
日期:1990.1
A general and stereoselective method to statine, ketomethylene and hydroxyethylenedipeptideisosteres is described. The key reaction is the diastereoselective allyl metal addition to α-aminoaldehydes.
A practical route to enantiopure 3-hydroxy-pyrrolidines: application to a straightforward synthesis of (−)-bulgecinine
作者:Mathieu Toumi、François Couty、Gwilherm Evano
DOI:10.1016/j.tetlet.2007.12.051
日期:2008.2
A practical synthesis of enantiopure substituted 3-hydroxy-pyrrolidines is reported. In four steps, starting from commercially available amino acids as chiral educts, this method allows for an efficient preparation of a variety of 3-hydroxy-pyrrolidines, as well as 3-hydroxy-piperidines and azepanes. Application of this methodology for a straightforward asymmetric synthesis of (−)-bulgecinine is also