Asymmetric Synthesis of (+)-Polyoxamic Acid via an Efficient Organocatalytic Mannich Reaction as the Key Step
作者:Dieter Enders、Marianna Vrettou
DOI:10.1055/s-2006-942413
日期:2006.7
A short and efficient stereoselective synthesis of (+)-polyoxamic acid is described using an organocatalytic asymmetric Mannich reaction as the key step. The reaction proceeded in high yield and with excellent selectivity to establish two out of the three stereocenters present in (+)-polyoxamic acid. Additional steps include a diastereoselective reduction and ozonolysis of the furyl ring to generate
使用有机催化不对称曼尼希反应作为关键步骤描述了 (+)-聚草胺酸的短而有效的立体选择性合成。该反应以高产率和优异的选择性进行,以建立 (+)-聚草酸中存在的三个立体中心中的两个。其他步骤包括呋喃环的非对映选择性还原和臭氧分解以产生相应的羧酸。