Synthesis and methemoglobinemia-inducing properties of benzocaine isosteres designed as humane rodenticides
摘要:
A number of isosteres (oxadiazoles, thiadiazoles, tetrazoles and diazines) of benzocaine were prepared and evaluated for their capacity to induce methemoglobinemia-with a view to their possible application as humane pest control agents. It was found that an optimal lipophilicity for the formation of methemoglobin (metHb) in vitro existed within each series, with 1,2,4-oxadiazole 3 (metHb% = 61.0 +/- 3.6) and 1,3,4-oxadiazole 10 (metHb% = 52.4 +/- 0.9) demonstrating the greatest activity. Of the 5 candidates (compounds 3, 10, 11, 13 and 23) evaluated in vivo, failure to induce a lethal end-point at doses of 120 mg/kg was observed in all cases. Inadequate metabolic stability, particularly towards hepatic enzymes such as the CYPs, was postulated as one reason for their failure. (C) 2014 Elsevier Ltd. All rights reserved.
Copper-Catalyzed Intermolecular Hydroamination of Arylamines or Aza-Heterocycles with Nitrostyrene Derivatives
作者:Subin Park、Seongil Kang、Yunmi Lee
DOI:10.1002/adsc.201801582
日期:2019.3.5
A new copper‐catalyzed protocol for the intermolecular anti‐Markovnikov addition of arylamines or heterocycles to terminal and unsymmetrical 1,2‐disubstituted vinylarenes has been developed. The direct hydroamination is catalyzed by a readily available N‐heterocyclic carbene‐based copper complex and KOt‐Bu, and the use of MeOH as an additive enhances the reactivity. The method provides a broad range
已经开发出了一种新的铜催化方案,用于将芳胺或杂环分子间反马氏化学加成到末端和不对称的1,2-二取代的乙烯基芳烃上。直接加氢胺化反应由易于获得的N杂环卡宾铜络合物和KO t Bu催化,使用MeOH作为添加剂可提高反应活性。该方法以良好至优异的产率提供了多种带有各种官能团的新型和通用的胺化合物。
Shifting Chemical Equilibria in Flow-Efficient Decarbonylation Driven by Annular Flow Regimes
作者:Bernhard Gutmann、Petteri Elsner、Toma Glasnov、Dominique M. Roberge、C. Oliver Kappe
DOI:10.1002/anie.201407219
日期:2014.10.20
chemical reactions, it is often necessary to influence an equilibrium by removing one or more components from the reaction space. Such manipulation is straightforward in open systems, for example, by distillation of a volatile product from the reaction mixture. Herein we describe a unique high‐temperature/high‐pressure gas/liquid continuous‐flow process for the rhodium‐catalyzed decarbonylation of
a-ASARY-LALDEHYDE ESTER, PREPARATION METHOD THEREFOR, AND APPLICATION THEREOF
申请人:NORTHWEST UNIVERSITY
公开号:US20170260122A1
公开(公告)日:2017-09-14
The present invention relates to α-asary-laldehyde ester, a preparation method therefor, and an application thereof. The chemical structure of the related α-asary-laldehyde ester is represented by formula I. A related application is an application of the compound in preparation of drugs for calming, mind tranquillizing, senile dementia resisting, convulsion resisting, epilepsy resisting and depression resisting.
Compounds inducing differentiation of myoblasts or muscle fibers into neuron cells, pharmaceutical composition including said compounds, a method for inducing neuron differentiation and a screening method for identifying additional compounds useful for inducing neuron differentiation
申请人:Shin In-Jae
公开号:US20070123576A1
公开(公告)日:2007-05-31
The present invention relates to compounds inducing differentiation of myoblasts or muscle fibers into neuron cells, pharmaceutical composition including said compounds, a method for inducing neuron differentiation and a screening method for identifying additional compounds useful for inducing neuron differentiation. More specifically, it relates to compounds that induce neuron differentiation from myoblasts or muscle fibers, all pharmaceutically acceptable isomers, salts, hydrates, solvates and prodrugs thereof, the method of inducing differentiation of myoblasts or muscle fibers into neuron cells by treating myoblasts and muscle fibers with a compound of the present invention, whereby the myoblasts and muscle fibers differentiate into neuron cells, and the screening method for identifying additional compounds useful for inducing neuron differentiation, wherein myoblasts and muscle fibers are incubated with a compound of the present invention and detected.
Cathepsin S inhibitors having formula (I), (II), (III) or (IV) as shown in the specification. These inhibitors can be used to treat cancer and autoimmune/inflammatory diseases.