2-Chloro-1-methoxymethylindole-3-carboxaldehyde: Introduction of Nucleophiles into the Indole 2-Position and an Approach to the Unusual TrpHis Fragment of Moroidin
作者:Mark F. Comber、Christopher J. Moody
DOI:10.1055/s-1992-26208
日期:——
2-Chloro-1-methoxymethylindole-3-carboxaldehyde (3) is an excellent substrate for a range of nitrogen nucleophiles and gives 2-substituted indoles. Use of a histidine based nucleophile results in the formation of the N-(2-indolyl)imidazole (11), a precursor for the unusually substituted tryptophan residue of the bicyclic octapeptide moroidin.
2-氯-1-甲氧甲基吲哚-3-甲醛(3)是一系列氮亲核试剂的优良底物,可生成2-取代吲哚。使用组氨酸基亲核试剂可生成N-(2-吲哚基)咪唑(11),后者是双环八肽莫罗定中异常取代色氨酸残基的前体。