Total Synthesis of (+)-CC-1065 Utilizing Ring Expansion Reaction of Benzocyclobutenone Oxime Sulfonate
作者:Taku Imaizumi、Yumi Yamashita、Yuki Nakazawa、Kentaro Okano、Juri Sakata、Hidetoshi Tokuyama
DOI:10.1021/acs.orglett.9b01690
日期:2019.8.16
An indole synthesis via ring expansion of benzocyclobutenone oxime sulfonate was developed. Utility of the indole synthesis was demonstrated by the total synthesis of (+)-CC-1065. The middle and right segments were constructed by a sequential ring expansion of the symmetrical benzo-bis-cyclobutenone. The left segment was also constructed via ring expansion of the methyl-substituted benzocyclobutenone
开发了通过
苯并环丁烯酮肟磺酸酯的扩环合成
吲哚的方法。(+)-CC-1065的总合成证明了
吲哚合成的效用。中段和右段由对称的苯并双
环丁烯酮的连续扩环构成。左链段也通过甲基取代的
苯并环丁烯酮肟磺酸盐的扩环而构建。在这三个链段缩合之后,形成二烯酮
环丙烷结构以完成总合成。