Entry into 6-Methoxy-D(+)-tryptophans. Stereospecific Synthesis of 1-Benzenesulfonyl-6-methoxy-D(+)-tryptophan Ethyl Ester
作者:Michael S. Allen、Linda K. Hamaker、Anthony J. La Loggia、James M. Cook
DOI:10.1080/00397919208021343
日期:1992.7
Abstract A strategy for the synthesis of optically active ring-A methoxylated indole alkaloids which employs the Moody azide/Schollkopf chiral auxiliary protocol has resulted in the successful preparation of 1-benzenesulfonyl-6-methoxy-D(+)-tryptophan ethyl ester 16. This amino ester is required for the synthesis of Alstonia bisindole alkaloids including macralstonine 2 via an enantiospecific Pictet-Spengler
The present invention includes diaromatic substituted heterocyclic compounds (III) ##STR1## which are useful in treating individuals infected with the HIV virus. The invention includes certain previously generically disclosed anti-AIDS piperazinyl compounds (V) and a method of treating HIV infected individuals with the indoles of formula (V) and the anti-AIDS amines (X).
A porous metal–organic cage constructed from dirhodium paddle-wheels: synthesis, structure and catalysis
作者:Lianfen Chen、Tao Yang、Hao Cui、Tao Cai、Li Zhang、Cheng-Yong Su
DOI:10.1039/c5ta05592j
日期:——
A porous metal–organic cage (MOC-Rh-1) with Rh–Rh bonds has been prepared, which can act as a heterogeneous catalyst and promote the intramolecular C–H amination of azides.
Iron(II) Triflate as a Catalyst for the Synthesis of Indoles by Intramolecular C−H Amination
作者:Julien Bonnamour、Carsten Bolm
DOI:10.1021/ol2004066
日期:2011.4.15
A practical iron-catalyzed intramolecular C−H amination reaction and its application in the synthesis of indole derivatives are presented. As a catalyst, commercially available iron(II) triflate is used.