Imidazo[1,2-a]-indeno[1,2-e]pyrazin-4-one derivatives and preparation thereof

摘要

PCT No. PCT/FR95/00358 Sec. 371 Date Sep. 27, 1996 Sec. 102(e) Date Sep. 27, 1996 PCT Filed Mar. 23, 1995 PCT Pub. No. WO95/26350 PCT Pub. Date Oct. 5, 1995Pharmaceutical compositions containing, as the active principle, compounds of formula (I): (I) wherein R, R1 and R2 are as defined in the description, or salts thereof, the novel compounds of formula (I), and the preparation thereof. The compounds of formula (I) have valuable pharmacological properties and are alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) receptor antagonists, this receptor also being known as the quisqualate receptor. Furthermore, the compounds of formula (I) are non-competitive N-methyl-D-aspartate (NDMA) receptor antagonists, and particularly NMDA receptor glycine modulation site ligands.