Synthesis and Characterization of Exo‐endo and Endo‐endo Benzenesulfonylaziridines
作者:Evilazio da Silva Andrade、Ricardo José Nunes、Marina Uieara
DOI:10.1081/scc-200028524
日期:2004.1
Abstract In the search for structural cyclic imide analogues of therapeutic interest, the synthesis, separation, and characterization of exo‐endo 3 and endo‐endo 4 stereoisomers of benzenesulfonylaziridines, not found in the literature, are described in this study. The benzenesulfonylaziridines were synthesized through a 1,3‐dipolar‐type reaction of p‐toluenesulfonylazide and different norbornenesuccinimides
Catalytic Diastereospecific and Enantioselective (3 + 2) Transannulations of 1,2,3-Thiadiazoles with Strained Norbornene Derivatives
作者:Cunzhi Chen、Shuyan Fang、Ziyang Dong、Jiaxi Xu、Zhanhui Yang
DOI:10.1021/acs.orglett.2c00330
日期:2022.3.25
ring-strain-release strategy, iridium-catalyzed transannulations with norbornene derivatives are achieved in a diastereospecific and enantioselective manner. The first asymmetric transannulations of 1,2,3-thiadiazoles are reported.
In order to understand the vital role of the imide substituent, a systematic theoretical DFT study at the PCM/B3LYP/6-31+G(d) level was carried out. We found that substituents at the nitrogen atom of epoxyimides exerted remarkable effects on the regioselectivity in the ethanolysis reaction, based on the solvent effects and intramolecular electronic interactions. Particularly, the preference for the
Generation of Cyclopentadiene for
<i>Diels–Alder</i>
Reactions by Visible‐Light Irradiation of Iron Sandwich Complexes
作者:Alexey S. Sokolov、Alexander V. Polezhaev、Yulia V. Nelyubina、Dmitry S. Perekalin
DOI:10.1002/hlca.202100246
日期:2022.4
Cyclopentadienes readily undergo fast and selective Diels–Alder reactions which can be used for conjugation of biomolecules and polymers. Herein we present a new method for the photochemical generation of cyclopentadienes by the visible light irradiation of the iron complexes [(C5H4R)Fe(arene)]+. This reaction proceeds at room temperature, in water, and in the presence of potentially interfering amino
环戊二烯很容易发生快速和选择性的 Diels-Alder反应,可用于生物分子和聚合物的缀合。在此,我们提出了一种通过铁络合物[(C 5 H 4 R)Fe(芳烃)] +的可见光照射光化学生成环戊二烯的新方法。该反应在室温、水中和存在潜在干扰氨基酸的情况下进行。游离的环戊二烯被亲双烯体捕获,得到相应的Diels-Alder加合物,产率为 72-95%。
[EN] FUSED CYCLIC SUCCINIMIDE COMPOUNDS AND ANALOGS THEREOF, MODULATORS OF NUCLEAR HORMONE RECEPTOR FUNCTION<br/>[FR] COMPOSES D'IMIDES SUCCINIQUES CYCLIQUES ACCOLES ET LEURS ANALOGUES, MODULATEURS DE LA FONCTION DU RECEPTEUR D'HORMONES NUCLEAIRES
申请人:BRISTOL MYERS SQUIBB CO
公开号:WO2002067939A1
公开(公告)日:2002-09-06
Fused cyclic compounds, methods of using such compounds in the treatment of nuclear hormone receptor-associated conditions such as cancer and immune disorders, and pharmaceutical compositions containing such compounds.