This invention is directed to compounds of the following formula:
1
wherein when a is 0, b is 1 or 2; when a is 1, b is 1, m is from 0-3, X is O or S, Y is halogeno, R
1
is hydrogen C
1-4
alkyl, R
2
is hydrogen, C
1-4
alkyl, or optionally substituted propargyl and R
3
and R
4
are each independently hydrogen, C
1-6
alkyl, C
6-12
aryl, C
6-12
aralkyl each optionally substituted.
This invention is also directed to the use of these compounds for treating depression, Attention Deficit Disorder (ADD), Attention Deficit and Hyperactivity Disorder (ADHD), Tourette's Syndrome, Alzheimer's Disease and other dementia's such as senile dementia, dementia of the Parkinson's type, vascular dementia and Lewy body dementia.
This invention is further directed to a pharmaceutical composition comprising a therapeutically effective amount of the above-defined compounds and a pharmaceutically acceptable carrier.
本发明涉及以下式子的化合物:1其中当a为0时,b为1或2;当a为1时,b为1,m为0-3,X为O或S,Y为卤素,R1为氢C1-4烷基,R2为氢,C1-4烷基,或可选取代的
丙炔基,而R3和R4各自独立地为氢,C1-6烷基,C6-12芳基,C6-12芳基烷基,均可选取代基。本发明还涉及使用这些化合物治疗抑郁症、注意力缺陷障碍(ADD)、注意力缺陷多动障碍(ADHD)、托瑞特综合症、阿尔茨海默病和其他痴呆症,如老年性痴呆、帕
金森型痴呆、血管性痴呆和Lewy体痴呆。本发明还涉及一种制药组合物,包括上述定义的化合物的治疗有效量和药学上可接受的载体。