The present invention provides N.sup.6 -benzyladenosine-5'-N-uronamide and related substituted compounds, particularly those containing substituents on the benzyl and/or uronamide groups, and modified xanthine ribosides, as well as pharmaceutical compositions containing such compounds. The present invention also provides a method of selectively activating an A.sub.3 adenosine receptor in a mammal, which method comprises acutely or chronically administering to a mammal in need of selective activation of its A.sub.3 adenosine receptor a therapeutically effective amount of a compound which binds with the A.sub.3 receptor so as to stimulate an A.sub.3 receptor-dependent response.
本发明提供了N.sup.
6-苄基腺苷-5'-N-糖尿酰胺及其相关的取代化合物,特别是那些在苄基和/或糖尿酰胺基团上含有取代基的化合物,以及修饰的
黄嘌呤核苷,以及含有这种化合物的药物组合物。本发明还提供了一种在哺乳动物中选择性激活A.sub.3
腺苷受体的方法,该方法包括向需要选择性激活其A.sub.3
腺苷受体的哺乳动物急性或慢性地给予与A.sub.3受体结合以刺激A.sub.3受体依赖性反应的治疗有效量的化合物。