作者:Luca Franceschetti、Aaron Garzon-Aburbeh、Mahmoud R. Mahmoud、Benedetto Natalini、Roberto Pellicciari
DOI:10.1016/s0040-4039(00)93413-0
日期:1993.5
The synthesis of a new, conformationally restrained analog of tryptophan, 1,2,3,4-tetrahydro-2-amino-2-carboxy-cyclopent[b]indole (5) is described. The key step involves the BF3· Et2O Catalyzed intramolecular cyclization of α-diazoketone 2b into the 1,2,3,4- tetrahydro-cyclopent[b]indol-2-one (3).
描述了一种新的,构象受限的色氨酸1,2,3,4-四氢-2-氨基-2-羧基-2-环戊[b]吲哚(5)的合成。关键步骤涉及BF 3 ·Et 2 O催化的α-重氮酮2b分子内环化成1,2,3,4-四氢环戊[b]吲哚-2-酮(3)。