作者:Andriy V. Tymtsunik、Vitaliy A. Bilenko、Yevhen M. Ivon、Oleksandr O. Grygorenko、Igor V. Komarov
DOI:10.1016/j.tetlet.2012.05.020
日期:2012.7
The synthesis of the Boc derivative of a novel member of the cyclopropane-modified proline library, Boc-protected 5-azaspiro[2.4]heptane-6-carboxylic acid, is reported. The synthesis was performed in six steps starting from (2S,4R)-4-hydroxyproline using a modified Simmons–Smith reaction as the key step. The reaction conditions for all the steps were carefully selected to avoid racemization at the
据报道,Boc保护的5-azaspiro [2.4]庚烷-6-羧酸的新成员是环丙烷修饰的脯氨酸文库的一个新成员的Boc衍生物的合成。从(2 S,4 R)-4-羟基脯氨酸开始,使用改良的Simmons-Smith反应作为关键步骤,分六步进行了合成。仔细选择所有步骤的反应条件,以避免中间体和最终产物在手性中心发生外消旋化。