A two-step method for the preparation of homochiral cathinones
摘要:
A simple method for the preparation of homochiral ring-substituted 1-aryl-2-aminopropanones 2 ('cathinones') is described, involving initial Friedel-Crafts acylation of aromatics with (S)- or (R)-N-trifluoroacetylalanyl chloride, followed by acid hydrolysis of the intermediate trifluoroacetamido intermediates 1. for which X-ray diffraction analysis confirmed the structures. (C) 2003 Elsevier Science Ltd. All rights reserved.
A two-step method for the preparation of homochiral cathinones
摘要:
A simple method for the preparation of homochiral ring-substituted 1-aryl-2-aminopropanones 2 ('cathinones') is described, involving initial Friedel-Crafts acylation of aromatics with (S)- or (R)-N-trifluoroacetylalanyl chloride, followed by acid hydrolysis of the intermediate trifluoroacetamido intermediates 1. for which X-ray diffraction analysis confirmed the structures. (C) 2003 Elsevier Science Ltd. All rights reserved.
Compounds of formula (I):
The present invention relates to novel indazolyl ester or amide derivatives, to pharmaceutical compositions comprising such derivatives, to processes for preparing such novel derivatives and to the use of such derivatives as medicaments
Compounds of formula (I):
The present invention relates to novel indazolyl ester or amide derivatives, to pharmaceutical compositions comprising such derivatives, to processes for preparing such novel derivatives and to the use of such derivatives as medicaments
Human and rat monoamine oxidase-A are differentially inhibited by (S)-4-alkylthioamphetamine derivatives: Insights from molecular modeling studies
作者:Angélica Fierro、Mauricio Osorio-Olivares、Bruce K. Cassels、Dale E. Edmondson、Silvia Sepúlveda-Boza、Miguel Reyes-Parada
DOI:10.1016/j.bmc.2007.05.021
日期:2007.8
Four enantiomerically pure (S)-4-alkylthioamphetamine derivatives were evaluated as monoamine oxidase (MAO) inhibitors using the human and rat isoforms of the enzyme. Molecular dockings were performed in order to gain insights regarding the binding mode of these inhibitors. All compounds were potent and selective MAO-A inhibitors although different rank orders of potencies were observed against the enzymes from different species. This behavior can be rationalized on the basis of different binding modes to each enzyme, as determined in silico. These findings further support the concept that MAO inhibitory activity of novel compounds, determined with enzymes from diverse mammalian species, should be considered with caution if human MAO is the final target to be addressed. (c) 2007 Elsevier Ltd. All rights reserved.
INDAZOLYL AMIDE DERIVATIVES FOR THE TREATMENT OF GLUCOCORTICOID RECEPTOR MEDIATED DISORDERS