8-Methylureido-4,5-dihydro-4-oxo-10 H -imidazo[1,2- a ]indeno-[1,2- e ]pyrazines: highly potent in vivo AMPA antagonists
作者:Serge Mignani、Georg Andrees Bohme、Alain Boireau、Michel Cheve、Dominique Damour、Marc-Williams Debono、Arielle Genevois-Borella、Assunta Imperato、Patrick Jimonet、Jeremy Pratt、John C.R. Randle、Yves Ribeill、Marc Vuilhorgne、Jean-Marie Stutzmann
DOI:10.1016/s0960-894x(00)00054-8
日期:2000.3
A novel series of readily water soluble 8-methylureido-4,5-dihydro-4-oxo-10H-imidazo[1,2-a]indeno[1,2-e]pyrazines were synthesized. The -10-yl acetic acid ((+)-3) and -10-carboxylidene (4) derivatives exhibit potent affinities (IC50 = 4 and 19 nM, respectively) and antagonist properties (IC50 = 2 and 3 nM, respectively) at the ionotropic AMPA receptor. These compounds also display anticonvulsant properties against both electrically and sound-induced convulsions in mice after ip, sc and iv administration with ED50 values between 0.9 and 11 mg/kg, thus suggesting adequate brain penetration. (C) 2000 Elsevier Science Ltd. All rights reserved.