The present invention relates to a fused aminodihydrothiazine derivative of formula (I):
wherein
X is hydrogen or fluorine;
A is CH or N;
Y is methyl, ethyl, monofluoromethyl, difluoromethyl, trifluoromethyl, difluoroethyl, methoxy, ethoxy, methoxymethyl or —C≡N;
and pharmaceutically acceptable salts thereof;
which compound has an Aβ production inhibitory effect or a BACE1 inhibitory effect and is useful as a prophylactic or therapeutic agent for a neurodegenerative disease caused by Aβ and typified by Alzheimer-type dementia.
本发明涉及一种式(I)的熔融
氨基二
氢噻嗪衍
生物:其中X为
氢或
氟;A为CH或N;Y为
甲基、乙基、单
氟甲基、二
氟甲基、三
氟甲基、二
氟乙基、甲
氧基、乙
氧基、甲
氧甲基或—C≡N;以及其药学上可接受的盐。该化合物具有抑制Aβ生成或抑制
BACE1的效果,并可用作预防或治疗由Aβ引起的以阿尔茨海默病为代表的神经退行性疾病的药物。