-aryl esters are highly potent and very selective butyrylcholinesterase inhibitors. The objective of the present work was to address the hypothesis that the isosorbide-aryl-5-ester group could be replaced with an antioxidant functionality while maintaining inhibitor effects and selectivity. We successfully incorporated ferulic acid or lipoic acid groups producing potent selective inhibitors of butyrylcholinesterase
Isosorbide-based cholinesterase inhibitors; replacement of 5-ester groups leading to increased stability
作者:Gerald P. Dillon、Joanne M. Gaynor、Denise Khan、Ciaran G. Carolan、Sheila A. Ryder、Juan F. Marquez、Sean Reidy、John F. Gilmer
DOI:10.1016/j.bmc.2009.12.052
日期:2010.2
Isosorbide-2-carbamate-5-esters are highly potent and selective butyrylcholinesterase inhibitors with potential utility in the treatment of Alzheimer's Disease (AD). They are stable in human plasma but in mouse plasma they undergo hydrolysis at the 5-ester group potentially attenuating in vivo potency. In this paper we explore the role of the 5-position in modulating potency. The focus of the study was to increase metabolic stability while preserving potency and selectivity. Dicarbamates and 5-keto derivatives were markedly less potent than the ester class. The 2-benzylcarbamate-5-benzyl ether was found to be potent (IC50 52 nM) and stable in the presence of mouse plasma and liver homogenate. The compound produces sustained moderate inhibition of mouse butyrylcholinesterase at 1 mg/kg, IP. (C) 2009 Elsevier Ltd. All rights reserved.
Isosorbide-2-carbamate Esters: Potent and Selective Butyrylcholinesterase Inhibitors
作者:Ciaran G. Carolan、Gerald P. Dillon、Joanne M. Gaynor、Sean Reidy、Sheila A. Ryder、Denise Khan、Juan F. Marquez、John F. Gilmer
DOI:10.1021/jm800564y
日期:2008.10.23
directly on the clinically used nitrate isosorbide mononitrate (ISMN) retention of the 5-nitrate group and introduction of a series of 2-carbamate functionalities. The compounds proved to be potent and selective inhibitors of human plasma butyrylcholinesterase ( huBuChE). In the second group, the nitrateester was removed and replaced with a variety of alkyl and aryl esters. These generally exhibited nanomolar