The present invention relates to a fused aminodihydrothiazine derivative of formula (I): wherein X is hydrogen or fluorine; R is monofluoromethyl or difluoromethyl; 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.
本发明涉及一种具有以下结构的融合
氨基二氢
噻嗪衍
生物(I):其中X为氢或
氟;R为单
氟甲基或二
氟甲基;以及其药学上可接受的盐;该化合物具有抑制Aβ产生或抑制
BACE1的作用,并可用作预防或治疗由Aβ引起的以阿尔茨海默病型痴呆为特征的神经退行性疾病的药剂。