| abstract |
A medicament for ischemic diseases, which comprises as itsnactive ingredient an oxygen-containing heterocyclic derivativenrepresented by the following general formula (I):n nwherein R 1 representsn n(wherein R 4 representsnan alkyl group, an aryl group or a cycloalkyl group), R 2 representsnan alkyl group, R 3 represents hydrogen atom or an acyl group and Anrepresents an alkylene group. n This derivative is useful as a drug for the treatment of ischemicndiseases such as ischemic brain diseases, cerebral stroke, cerebralnthrombosis, cerebral embolism and myocardial infarction. |