Novel carbamate cholinesterase inhibitors that release biologically active amines following enzyme inhibition
摘要:
Conjugation of the phenol derived from rivastigmine with amphetamines gave access to novel carbamate cholinesterase inhibitors. All compounds possessed increased affinity and selectivity for AChE compared to rivastigmine and were orally bioavailable. Compound 4a, incorporating d-amphetamine, caused significant inhibition of cholinesterase in vivo at doses that were well tolerated. Release of amphetamine from 4a was demonstrated following in vitro and in vivo inhibition of cholinesterase. Compound 4a was also effective in alleviating scopolamine induced amnesia in a rat passive avoidance model. (C) 2009 Elsevier Ltd. All rights reserved.
The present invention is directed to compositions, methods of use, and processes for the synthesis related to 3-((S)-1-(dimethylamino)ethyl)phenyl methyl-((R)-1-phenylpropan-2 yl)carbamate, and its pharmaceutically acceptable salt forms, including the hydrogen fumarate salt. The present invention also relates to a novel form polymorph of 3-((S)-1-(dimethylamino)ethyl)phenylmethyl-((R)-1-phenylpropan-2 yl)carbamate, characterized by a unique X-ray diffraction pattern and Differential Scanning Calorimetry profile, as well a unique crystalline structure.
Novel carbamate cholinesterase inhibitors that release biologically active amines following enzyme inhibition
作者:Jeroen C. Verheijen、Kjesten A. Wiig、Shoucheng Du、Stacie L. Connors、Ashley N. Martin、Jennifer P. Ferreira、Vladimir I. Slepnev、Ulrike Kochendörfer
DOI:10.1016/j.bmcl.2009.04.089
日期:2009.6
Conjugation of the phenol derived from rivastigmine with amphetamines gave access to novel carbamate cholinesterase inhibitors. All compounds possessed increased affinity and selectivity for AChE compared to rivastigmine and were orally bioavailable. Compound 4a, incorporating d-amphetamine, caused significant inhibition of cholinesterase in vivo at doses that were well tolerated. Release of amphetamine from 4a was demonstrated following in vitro and in vivo inhibition of cholinesterase. Compound 4a was also effective in alleviating scopolamine induced amnesia in a rat passive avoidance model. (C) 2009 Elsevier Ltd. All rights reserved.