| 摘要 |
<p>This invention involves novel neuroprotectant agents of formula (I), in which R?1 and R3¿ are, independently, hydrogen, cyano, nitro, halo or perhaloalkyl, with the proviso that one of R?1 and R3¿ is other than hydrogen; R2 is alkyl; or a pharmaceutically acceptable salt thereof, processes for preparing them, compositions containing them and their use as NMDA antagonists.</p> |
