Total Synthesis of the 7,3‘-Linked Naphthylisoquinoline Alkaloid Ancistrocladidine
作者:Christopher J. Bungard、Jonathan C. Morris
DOI:10.1021/jo0611364
日期:2006.9.1
total synthesis of ancistrocladidine, a rare 7,3‘-linked naphthylisoquinoline alkaloid, has been completed, with the key feature of the synthesis being the formation of the extremely hindered biaryl linkage by ortho-arylation of a naphthol with an aryllead triacetate. Initial efforts were focused on the generation of a heteroaryl lead species, which would have allowed a convergent synthesis to be developed
已经完成了第一个全合成的顺克拉丁定,这是一种罕见的7,3'-连接的萘基异喹啉碱生物碱,该合成的关键特征是通过萘酚与三乙酸芳基铅的邻位芳构化而形成极受阻碍的联芳基键合。最初的努力集中在杂芳基铅物种的产生上,这将允许发展会聚的合成。但是,不可能产生这种铅物质。制备了更简单的芳基三乙酸铅并使其反应。分十步精制所得的联芳基醛,以形成顺氯克拉定及其阻转异构体的1:1混合物。将该混合物重结晶,得到顺氯cladidine,其在所有方面均与所报道的数据相同。