Synthesis of Enantiomerically Pure Morphine Alkaloids: The Hydrophenanthrene Route
作者:Dirk Trauner、Jan W. Bats、Andreas Werner、Johann Mulzer
DOI:10.1021/jo9805394
日期:1998.8.1
A concise, linear, total synthesis of (-)-dihydrocodeinone-a close synthetic precursor of (-)-codeine and (-)-morphine-has been achieved. The carbocyclic core of the alkaloid was provided in the form of a phenanthrenone, which was resolved by chromatography on cellulose triacetate. A cuprate conjugate addition was used to establish the crucial benzylic quaternary stereocenter and to introduce the C(2)-side
一个简明的,线性的,全合成的(-)-二氢可待因酮-(-)-可待因和(-)-吗啡的紧密合成前体。生物碱的碳环核心以菲咯酮的形式提供,其通过在三乙酸纤维素上的色谱法拆分。阿铜酸盐共轭加成用于建立关键的苄基季立体中心,并介绍C(2)侧链。二聚体副产物为单电子转移(SET)机制提供了证据。异常的S(N)2和自由基环化分别用于二氢苯并呋喃和哌啶环的形成。