The Synthesis of (±)-11-Deoxydaunomycinone<i>via</i>Regioselective Tandem<i>Diels</i>-<i>Alder</i>Reactions
作者:Jean-Mare Tornare、Pierre Vogel
DOI:10.1002/hlca.19850680431
日期:1985.6.26
cyclo[2.2.1]heptane (13) can be used to generate polyfunctional and multicyclic molecules with high regio- and stereoselectivity via two successive Diels-Alder additions using two different dienophiles. This principle has been applied to the synthesis of (±)-11-deoxydaunomycinone (7), the aglycone of an important antitumor drug. The 2,3-didehydroanisole adds to 13 and gives the monoadduct 14 with high
2,5-二甲基-3,6-双[(Z)-(2-硝基苯基)亚硫基亚甲基] -7-氧杂双环[2.2.1]庚烷(13)可用于生成具有高区域取代度的多官能和多环分子通过两个连续的Diels - Alder加法使用两种不同的亲二烯体进行立体选择性和立体选择性。该原理已经应用于重要抗肿瘤药糖苷配基(±)-11-脱氧金牛烯酮(7)的合成。2,3-二氢氢化茴香醚加成13,使单加合物14具有高区域选择性。没有观察到双加合物的痕迹。1,4-环氧-1,2,3,4-四氢-5-甲氧基-3-亚甲基-2-[(Z)-(2-硝基苯基)亚硫基亚甲基]蒽(15),用K 2 CO 3处理14获得,将甲基乙烯基酮加到[(1 RS,2 SR,5 RS,12 RS)-5,12-环氧-具有高区域和立体选择性的1,2,3,4,5,12-六氢-7-甲氧基-1-(2-硝基苯基)亚磺酰基-2-萘并苯基]甲基酮(16)。酸催化的16的7-氧杂降冰片二