Formula (I), and salts thereof, wherein R1, RA2, RA3 and RA4, are defined herein, which have properties for positive allosteric modulation of mGluR-4 receptor sites. Also described are pharmaceutical formulations comprising the compounds of Formula (I) or their salts, and methods of treating Parkinson's disease and related disorders using the same.
公式(I)及其盐,其中R1、RA2、RA3和RA4在此处定义,具有对mGluR-4受体位点进行正向变构的特性。还描述了包含公式(I)化合物或其盐的药物配方,以及使用它们治疗帕
金森病和相关疾病的方法。