| 摘要 |
<p>The invention relates to compounds of the formula <CHEM> wherein X<1> and X<2> are halo; R is lower alkyl of from 1 to 6 carbon atoms; R<1> is hydrogen, lower alkyl of 1 to 4 carbon atoms, cycloalkyl of 3 to 6 carbon atoms, lowercycloalkylloweralkyl of 4 to 7 carbon atoms and phenyl; R<2> is hydrogen or lower alkyl of 1 to 6 carbon atoms, and carboxy lower airy of 2 to 6 carbon atoms; and the pharmaceutically acceptable salts thereof and a process for preparing the same. Those compounds are suitable for the treatment and prevention of injury to the gray matter of the brain and to the spinal chord due to accidents, ischemic stroke, cardiac arrest, arrested breathing, Reye's syndrome and hydrocephalus.</p> |
