Compounds, compositions and methods for modulating the activity of nuclear receptors are provided. In particular, heterocyclic compounds are provided for modulating the activity of farnesoid X receptor (FXR), liver X receptor (LXR) and/or orphan nuclear receptors. In certain embodiments, the compounds are thiazolidinone derivatives.
A practical, versatile, and efficient method for the palladium-catalyzeddirectcyanation of readily available acetanilides with K4[Fe(CN)6] as a safe cyanating agent through C–Hbondactivation with excellent C2 regioselectivity was developed. This finding represents a new strategy for the synthesis of N-(2-cyanoaryl)acetamides, which are important structural motifs in natural products and pharmaceuticals
Abstract Nitration of N-acetyl anilides using a simple combination of AgNO3 and K2S2O8 as a stable nitro source and an oxidant, respectively, was explored. The reaction was practical to operate and proceeded under considerably mild reaction conditions (reflux in acetonitrile) within acceptable reaction time (6 h). The para-substituted N-acetyl anilides gave only ortho-nitrated products in moderate
摘要 探索了使用AgNO 3和K 2 S 2 O 8的简单组合分别作为稳定的硝基源和氧化剂对N-乙酰苯胺的硝化。该反应在可接受的反应时间(6小时)内可在相当温和的反应条件(在乙腈中回流)下实际操作和进行。对位取代的N-乙酰苯胺仅产生邻位硝化产物,产率适中(产率 30-63%)。邻位、间位或未取代的N-乙酰苯胺产生硝化产物的混合物(30-72%的总产率),优先在对位而不是邻位(邻位:对位;1.0:1.1-1.0:2.8)。
Continuous Flow Synthesis of Secondary Amides by Tandem Azidation- Amidation of Anilines
作者:John Moses、Christian Spiteri
DOI:10.1055/s-0031-1291013
日期:2012.6
The continuous flow synthesis of a variety of secondary amides by tandem azidation-amidation of anilines is described. This new procedure benefits from the improved safety feature of generating aromatic azides in flow, thus ensuring low concentrations of any potentially hazardous intermediates. The protocol was amenable to the production of multi-gram quantities of the amide product.