Synthesis and cholinesterase activity of phenylcarbamates related to Rivastigmine, a therapeutic agent for Alzheimer's disease
摘要:
In order to develop new cholinesterase agents effective against Alzheimer's disease (AD) we synthesized some phenylcarbamates structurally related to Rivastigmine and evaluated their in vitro and in vivo biological activity. Among the compounds which displayed the most significant in vitro activity, 1-[1-(3-dimethylcarbamoyloxyphenyl)ethyl]piperidine (31b), in addition to a simple and cheaper synthesis, showed lower toxicity and very similar therapeutic index in comparison with Rivastigmine. (C) 2002 Editions scientifiques et medicales Elsevier SAS. All rights reserved.
Iron-Catalyzed Intermolecular Hydroamination of Styrenes
作者:C. Bryan Huehls、Aijun Lin、Jiong Yang
DOI:10.1021/ol5013907
日期:2014.7.18
formal hydroamination of alkenes has been developed. It features O-benzoyl-N,N-dialkylhydroxylamines as the electrophilic nitrogen source and cyclopentylmagnesium bromide as the reducing agent for intermolecularhydroamination of styrene and derivatives with good yield and excellent Markovnikov regioselectivity. The reaction presumably proceeds through the iron-catalyzed hydrometalation of styrene followed
In order to develop new cholinesterase agents effective against Alzheimer's disease (AD) we synthesized some phenylcarbamates structurally related to Rivastigmine and evaluated their in vitro and in vivo biological activity. Among the compounds which displayed the most significant in vitro activity, 1-[1-(3-dimethylcarbamoyloxyphenyl)ethyl]piperidine (31b), in addition to a simple and cheaper synthesis, showed lower toxicity and very similar therapeutic index in comparison with Rivastigmine. (C) 2002 Editions scientifiques et medicales Elsevier SAS. All rights reserved.
Design, synthesis, and evaluation of 2-phenoxy-indan-1-one derivatives as acetylcholinesterase inhibitors
作者:Rong Sheng、Xiao Lin、Jingya Li、Yanke Jiang、Zhicai Shang、Yongzhou Hu
DOI:10.1016/j.bmcl.2005.05.132
日期:2005.9
A series of 2-phenoxy-indan-1-one derivatives have been designed, synthesized, and tested as acetylcholinesterase inhibitors. The most potent compound exhibited high AChE inhibitory activity (IC50 = 50 nM), and the molecular docking study indicated that it was nicely accommodated by AChE. (c) 2005 Elsevier Ltd. All rights reserved.
Reactivity Umpolung of Tertiary Amide Enabled by Catalytic Reductive Stannylation
作者:Qiu Shi、Wenbo H. Liu
DOI:10.1002/anie.202309567
日期:2023.9.11
Amide carbonyl group usually serves as the electrophile, which can react with various nucleophiles. The current work shows a process to achieve the umpolung reactivity of tertiaryamide carbonyl group. By leveraging this strategy, tertiaryamide can react with a wide range of electrophiles to produce complex amines.