A compound of the formula:
(wherein R is -SO₂R¹ or -CONHR²; R¹ is C₁-C₅ alkyl, C₈-C₁₂ phenylalkenyl, amino, dimethylamino, optionally substituted C₆-C₁₂ aryl, or 5- or 6-membered heterocyclic group including at least one hetero atom selected from the group consisting of N, S, and O; R² is amino, C₁-C₅ alkylamino, C₁-C₅ alkyl, or optionally substituted C₆-C₁₂ aryl)
or its pharmaceutically acceptable acid-addition salt, being useful as a drug for senile dementia, psychotropic, or antiamnesia agent is provided through several routes.
式中的化合物:
(其中 R 是 -SO₂R¹ 或 -CONHR²;R¹ 是 C₁-C₅烷基、C₈-C₁₂苯基烯基、
氨基、二甲基
氨基、任选取代的 C₆-C₁₂芳基或包括至少一个选自 N、S 和 O 组成的组的杂原子的 5 或 6 元杂环基团;R² 是
氨基、C₁-C₅ 烷基
氨基、C₁-C₅ 烷基或任选取代的 C₆-C₁₂ 芳基)。
或其药学上可接受的酸加成盐,可通过多种途径用作老年痴呆症药物、精神药物或抗失眠药物。