The present invention relates to neurologically-active compounds, processes for their preparation and their use as pharmaceutical or veterinary agents, in particular for the treatment of neurological conditions, more specifically neurodegenerative conditions such as Alzheimer's disease.
The present invention relates to neurologically-active compounds, processes for their preparation and their use as pharmaceutical or veterinary agents, in particular for the treatment of neurological conditions, more specifically neurodegenerative conditions such as Alzheimer's disease.
Highly regioselective ring opening of quinolinic[2,3]anhydrides under mild conditions
作者:Sammy E. Metobo、Salman Y. Jabri、Evangelos Aktoudianakis、Jared Evans、Haolun Jin、Choung U. Kim
DOI:10.1016/j.tetlet.2013.10.020
日期:2013.12
We report a study of the influence of Lewis acids upon the regioselectivity of ring opening of quinolinic[2,3]anhydrides to provide 2-(isopropoxycarbony1)-nicotinic acids. In the presence of stoichiometric amounts of indium trifluoromethanesulfonate or lanthanum trifluoromethanesulfonate, the desired 2-position ester was generated with greater than 95:5 regioselectivity. This methodology was also applied to 6-methyl[2,3]-quinoline to provide similar results. (C) 2013 Elsevier Ltd. All rights reserved.