作者:Jose Vicario、Dolores Badía、Efraim Reyes、Nerea Ruiz、Luisa Carrillo
DOI:10.1055/s-0030-1258390
日期:2011.2
carried out the stereoselective synthesis of (-)-β-conhydrine and (+)-α-conhydrine, two bioactive α-hydroxyalkyl-substituted piperidines, using the commercially available and inexpensive amino alcohol (S,S)-(+)-pseudoephedrine as chiral auxiliary. The key step of this synthesis relies on new methodology previously developed in our group, consisting of the chemo- and diastereoselective addition of Grignard
我们已经使用市售和廉价的氨基醇(S,S)-(+)进行了两种生物活性被α-羟烷基取代的哌啶(-)-β-conhydrine和(+)-α-conhydrine的立体选择性合成-伪麻黄碱作为手性助剂。该合成的关键步骤依赖于先前在我们小组中开发的新方法,包括通过衍生自(S,S)-(+)-伪麻黄碱的α-亚氨基乙二酰乙酰胺的C = N键在化学和非对映选择性地添加格氏试剂然后将有机锂试剂选择性单加成到氨基甲酰基上,导致形成对映体富集的α-氨基酮。 不对称合成-手性助剂-哌啶-全合成-联苯