Aliphatic and aromatic nitriles react with thioacetic acid in the presence of calcium hydride to give the corresponding thioamides in good to excellent yields. The examples studied include haloaryl nitriles in which the halogen is facile towards S N Ar reactions under other conditions.
脂肪族和芳香族腈在氢化钙存在下与硫代乙酸反应,以良好到极好的收率得到相应的硫代酰胺。研究的例子包括卤代芳基腈,其中卤素在其他条件下容易发生 SN Ar 反应。
Synthesis and Evaluation of Sulfonylnitrophenylthiazoles (SNPTs) as Thyroid Hormone Receptor–Coactivator Interaction Inhibitors
作者:Jong Yeon Hwang、Ramy R. Attia、Fangyi Zhu、Lei Yang、Andrew Lemoff、Cynthia Jeffries、Michele C. Connelly、R. Kiplin Guy
DOI:10.1021/jm201546m
日期:2012.3.8
We previously identified a series of methylsulfonylnitrobenzoates (MSNBs) that block the interaction of the thyroid hormone receptor with its coactivators. MSNBs inhibit coactivator binding through irreversible modification of cysteine 298 of the thyroid hormone receptor (TR). Although MSNBs have better pharmacological features than our first generation inhibitors (beta-aminoketones), they contain a potentially unstable ester linkage. Here we report the bioisosteric replacement of the ester linkage with a thiazole moiety, yielding sulfonylnitrophenylthiazoles (SNPTs). An array of SNPTs representing optimal side chains from the MSNB series was constructed using parallel chemistry and evaluated to test their antagonism of the TR-coactivator interaction. Selected active compounds were evaluated in secondary confirmatory assays including regulation of thyroid response element driven transcription in reporter constructs and native genes. In addition the selected SNPTs were shown to be selective for TR relative to other nuclear hormone receptors (NRs).
[EN] FUSED HETEROCYCLIC COMPOUND HAVING ANTI-HCV EFFECT<br/>[FR] COMPOSÉ HÉTÉROCYCLIQUE FONDU AYANT UN EFFET ANTI-VHC