Synthesis of Methyl <i>trans</i>
-Oxazolidine-5-Carboxylate, A Chiral Synthon for <i>threo</i>
-β-Amino-α-Hydroxy Acid
作者:Youngran Seo、Jae Won Yoo、Yoonjae Lee、Boram Lee、Bonghyun Kim、Young Gyu Kim
DOI:10.1002/0471264229.os094.27
日期:——
N-Hydroxymethyl derivatives of α-amino aldehydes used for the stereoselective syntheses of β-amino-α-hydroxy acids
作者:Youngran Seo、Hyeonjeong Kim、Da Won Chae、Young Gyu Kim
DOI:10.1016/j.tetasy.2014.03.012
日期:2014.4
The N-hydroxymethyl derivatives of α-amino aldehydes 1 were utilized for the effective synthesis of several β-amino-α-hydroxy acid derivatives in a one-potprocess starting from the corresponding α-amino aldehydes. Properly protected methyl esters 3 were prepared in 65–79% yields from α-amino aldehyde derivatives 1 with more than 20:1 stereoselectivity. The application of suitably protected β-amino-α-hydroxy