A pyrazine derivative of the following formula (I):
or a salt thereof. The pyrazine compound (I) and a salt thereof of the present invention are adenosine antagonists and are useful for the prevention and/or treatment of depression, dementia (e.g. Alzheimer's disease, cerebrovascular dementia, dementia accompanying Parkinson's disease, etc.), Parkinson's disease, anxiety, pain, cerebrovascular disease (e.g. stroke, etc.), heart failure and the like.
以下式子(I)的
吡嗪衍
生物,或其盐。本发明的
吡嗪化合物(I)及其盐是
腺苷拮抗剂,可用于预防和/或治疗抑郁症、痴呆症(如阿尔茨海默病、脑血管痴呆、帕
金森病伴随的痴呆等)、帕
金森病、焦虑症、疼痛、脑血管疾病(如中风等)、心力衰竭等。