申请人:I.S.F. SpA
公开号:US04173569A1
公开(公告)日:1979-11-06
Preparation of compounds of the formula: ##STR1## wherein n is 1, 2 or 3, R.sub.1 and R.sub.2, which may be the same or different, are hydrogen or alkyl containing 1 to 3 carbon atoms and the asterisk indicates the center of asymmetry of the molecule, and compounds of the formula ##STR2## wherein R" is a saturated or unsaturated aliphatic hydrocarbon containing 1 to 6 carbon atoms, R.sub.3 is hydrogen or acyl containing 1 to 7 carbon atoms and the asterisk indicates the center of asymmetry of the molecule. The compounds produced by the present invention improve learning memory and display a protecting effect against the E.E.G. consequence of an overdose of barbiturates and against the reduced performance following brain damage (e.g. cerebral edema).
制备下列化合物的方法:其中n为1、2或3,R1和R2可以相同或不同,是氢或含1至3个碳原子的烷基,星号表示分子的不对称中心。另外,还制备下列化合物:其中R"是含1至6个碳原子的饱和或不饱和脂肪族碳氢化合物,R3是氢或含1至7个碳原子的酰基,星号表示分子的不对称中心。本发明制备的化合物可以提高学习记忆能力,并对巴比妥类药物过量引起的脑电图后果和脑损伤(如脑水肿)引起的表现下降具有保护作用。