作者:Christophe Pardin、Joelle N. Pelletier、William D. Lubell、Jeffrey W. Keillor
DOI:10.1021/jo8004843
日期:2008.8.1
inhibitors of guinea pig liver transglutaminase. The most effective inhibitors evaluated can be sorted into two subclasses: substituted cinnamoyl benzotriazolyl amides and the 3-(substituted cinnamoyl)pyridines, referred to more commonly as azachalcones. Kinetic evaluation of both of these subclasses revealed that they display reversible inhibition and are competitive with acyldonor TGase substrates at IC50
Polyethyleneimine-Supported Triphenylphosphine and Its Use as a Highly Loaded Bifunctional Polymeric Reagent in Chromatography-Free One-Pot Wittig Reactions
作者:Patrick Toy、Xuanshu Xia
DOI:10.1055/s-0034-1380810
日期:——
rted triphenylphosphine reagent has been synthesized and used as a highly loaded bifunctional homogeneous reagent in a range of one-potWittigreactions that afforded high yields of the desired products after simple purification procedures. The approach also served efficiently in tandem reaction sequences involving a one-potWittigreaction followed by conjugate reduction of the newly formed alkene
A facile synthesis of (2E)-, (2E, 4E)-unsaturated amides was achieved via arsonium bromides with high stereoselectivity. Its application to the synthesis of related natural products 4 and 5 is also reported.
Abstract A new one-pot synthesis of α,β-unsaturatedamides with high stereoselectivity by the reaction of aldehydes with bromoacetamides promoted by tri-n-butylphosphine and zinc is described.
1,3-Dipolar Cycloadditions VI [1].Structure and Conformation of Cycloadducts from Reactions of C-Aryl-N-phenylnitrones with Substituted Cinnamic Acid Amides
Studies on cycloadditions of C,N-diarylnitrones to cinnamic acid amides were carried out. The diastereoisomeric ( I, II ) and (in some cases) regioisomeric ( III ) cycloadducts obtained were characterized by spectroscopic and X-ray data. Conformational studies were carried out by molecular modelling.
进行了C,N-二芳基硝酮与肉桂酰胺的环加成反应的研究。通过光谱和X射线数据表征获得的非对映异构体( I,II )和(在某些情况下)区域异构体( III )的环加合物。构象研究是通过分子建模进行的。