A one-pot three-component reaction for the preparation of highly functionalized tryptamines
摘要:
We have developed a general one-pot method to provide highly functionalized tryptamine derivatives, via a Fischer indole type pathway. In this article, we demonstrate optimal conditions for a one-pot indole synthesis, allowing for the synthesis of a broad scope of 2-methyl tryptamine derivatives and a precursor for the synthesis of the core structure of some akuammiline alkaloids. Additionally, further modification of the indole products is described. Published by Elsevier Ltd.
Oxidation of Tetrahydro-β-carbolines by Persulfate
作者:Haijun Chen、Fu Ye、Jing Luo、Yu Gao
DOI:10.1021/acs.orglett.9b02772
日期:2019.9.20
The development of persulfate-mediated oxidation of tetrahydro-β-carbolines is reported. This mild reaction facilitates the formation of a variety of 2-formyl N-substituted tryptamines and the related derivatives as key intermediates in moderate to excellent yields. The method is applicable to direct last-stage oxidation of two interesting pharmaceuticals, Cialis and evodiamine.