(EN) The present invention provides compounds of formula (I) in which R is as defined in the specification, or a pharmaceutically acceptable metabolically labile ester or amide thereof, or a pharmaceutically acceptable salt thereof, which are useful as antagonists of one or more of the actions of L-glutamate at metabotropic excitatory amino acid receptors.(FR) Cette invention concerne des composés de formule (I), dans laquelle R est tel que défini dans le descriptif, ou un ester ou amide pharmaceutiquement acceptable de ces composés qui est métaboliquement labile, ou encore un sel pharmaceutiquement acceptable de ces composés, qu'on utilise comme antagonistes d'une ou de plusieurs actions du L-glutamate au niveau des récepteurs d'acides aminés excitateurs métabotropiques.
The chemistry of thiophene-based bis-(p-quinodimethanes): an approach to macrocycles
作者:Walter S. Trahanovsky、Douglas A. Klumpp
DOI:10.1016/j.tetlet.2016.04.062
日期:2016.6
Bis-2,5-dimethylene-2,5-dihydrothiophenes have been generated in the gas-phase by flash vacuum pyrolysis (FVP) of diester precursors. These thiophene-based bis-(p-quinodimethanes) are shown to undergo reactions leading to macrocycles. The conversions are consistent with a mechanism involving cyclic diradical intermediates followed by disproportionation of the radical centers.