A compound represented by the general formula (I):
a pharmaceutically acceptable salt thereof, or a solvate of the compound or salt has an Aβ production inhibitory activity or BACE 1 inhibitory activity, and is thus useful as an agent for treating neurodegenerative diseases caused by Aβ as typified by Alzheimer's disease. In the formula, ring A represents a C
6-14
aryl group or the like; L represents —NR
1
CO— (wherein R
L
represents a hydrogen atom or the like) or the like; ring B represents a C
6-14
aryl group or the like; X represents a C
1-3
alkylene group or the like; Y represents a C
1-3
alkylene group or the like; Z represents an oxygen atom or the like; R
1
and R
2
each independently represents a hydrogen atom or the like; and R
3
, R
4
, R
5
and R
6
each independently represents a hydrogen atom, a halogen atom or the like.
化合物由通式(I)所代表,其药学上可接受的盐或化合物或盐的溶剂具有Aβ产生抑制活性或
BACE 1抑制活性,因此可用作治疗以Alzheimer病为代表的由Aβ引起的神经退行性疾病的药剂。在该式中,环A代表C6-14芳基或类似物;L代表—NR1CO—(其中RL代表氢原子或类似物)或类似物;环B代表C6-14芳基或类似物;X代表C1-3烷基或类似物;Y代表C1-3烷基或类似物;Z代表氧原子或类似物;R1和R2各自独立地代表氢原子或类似物;R3、R4、R5和R6各自独立地代表氢原子、卤素原子或类似物。