The present invention relates to certain novel 8-substituted purines as selective A.sub.1 -adenosine receptor antagonists which are useful in the treatment of patients suffering from Alzheimer's disease, congestive heart failure or pulmonary bronchoconstriction.
本发明涉及某些新颖的8-取代
嘌呤,作为选择性A.sub.1-
腺苷受体
拮抗剂,可用于治疗患有阿尔茨海默病、充血性心力衰竭或肺支气管痉挛的患者。