N-Substituted amino acid N′-benzylamides: synthesis, anticonvulsant, and metabolic activities
作者:Cécile Béguin、Arnaud LeTiran、James P. Stables、Robert D. Voyksner、Harold Kohn
DOI:10.1016/j.bmc.2004.02.043
日期:2004.6
Amino acid amides (AAA) were prepared and evaluated in seizure models. The AAA displayed moderate-to-excellent activity in the maximal electroshock seizure (MES) test and were devoid of activity in the subcutaneous Metrazol-induced (scMet) seizure test. The AAA anticonvulsantactivity was neither strongly influenced by the C(2) substituent nor by the degree of terminal amine substitution. An in vitro
2,7-Diazabicyclo[2.2.1]heptanes: novel asymmetric access and controlled bridge-opening
作者:Gary R. Peczkowski、Philip G. E. Craven、Darren Stead、Nigel S. Simpkins
DOI:10.1039/c8cc10263e
日期:——
triketopiperazines to enones afford products in high yield and enantiomeric ratio (er). Further modification delivers products possessing natural product (NP) scaffolds including diazabicyclo[2.2.1]heptane, prolinamide and harmicine.
A Convenient Synthetic Route to 4-Aryl-1,4-dihydro-3(2<i>H</i>)-isoquinolinones
作者:Orlin S. Petrov、Vassil I. Ognyanov、Nikola M. Mollov
DOI:10.1055/s-1987-28031
日期:——
The title compounds are synthesized by Friedel-Crafts cyclization of N-benzyl-α-chloroacetamides, derived from the dichlorocarbene adducts of benzaldehyde N-benzylimines.
Experimental and Theoretical Investigation of an Azaoxyallyl Cation‐Templated Intramolecular Aryl Amination Leading to Oxindole Derivatives
作者:Tishyasoumya Bera、Bandana Singh、Vincent Gandon、Jaideep Saha
DOI:10.1002/chem.202201208
日期:2022.11.7
A detailed investigation on the reactivity of α-arylated azaoxyallyl cation undergoing intramolecular nucleophilic aryl-amination under catalyst-free conditions is presented. Azaoxyallyl cation-guided ortho-activation of the adjacent aromatic ring is central to this process aided by HFIP. This reaction manifold offers broad access to oxindole derivatives.
The electrocarboxylation of α,α-dichloroarylmethane derivatives in the presence of CO2 was achieved, providing several α-chloroarylacetic acid derivatives with modest yields but high selectivity (chlorinated vs. non-chlorinated or dicarboxylic acid products). The obtained products were then involved in several chemical transformations, underlining their potential as versatile intermediates in synthetic
在 CO2 存在下实现了 α,α-二氯芳基甲烷衍生物的电羧化,提供了几种产率适中但选择性高的 α-氯芳基乙酸衍生物(氯化产物与非氯化产物或二羧酸产物)。获得的产品随后进行了多次化学转化,突显了它们作为合成化学中多功能中间体的潜力。基于控制实验和循环伏安法(CV)研究还提出了一种机制。