Synthesis of an indole analog of magallanesine<i>via</i>the [1,2]-meisenheimer rearrangement
作者:Ryuji Yoneda、Tetsuya Kimura、Junko Kinomoto、Shinya Harusawa、Takushi Kurihara
DOI:10.1002/jhet.5570330658
日期:1996.11
azetopyridoindole 11 via the [1,2]-Meisenheimer rearrangement of the corresponding N-oxide 12 gave azocinoindole 14, which was converted into the N-benzoylenaminone 18 in 5 steps. Intramolecular cyclization of 18 was accomplished by a modified Heck reaction followed by reductive desulfonylation to provide the indole analog 2, 5H-isoindolo[2′,1′;1,2]azocino[5,6-b]indole, of magallanesine 1.
通过相应的N-氧化物12的[1,2] -Meisenheimer重排,使氮杂吡啶并吲哚11 环扩环,得到偶氮基吲哚14,将其以5个步骤转化为N-苯并亚氨基氨基酮18。18的分子内环化是通过修饰的Heck反应,然后进行还原性脱磺酰作用完成的,以提供麦加丙氨酸1的吲哚类似物2、5 H-异吲哚并[2',1'; 1,2]偶氮并[ 5,6- b ]吲哚。。