Certain functionalized congeners of 1,3-dialkylxanthine exhibit high potency and selectivity as antagonists for A.sub.1 - and A.sub.2 -adenosine receptors and are suitable for attachment to probes, drug carriers, or solid supports. These derivatives are characterized by the presence of a phenyl at the 8 position para-substituted with a functionalized chain to provide high water solubility and high receptor affinity to such an extent that these compounds are suitable for use as antiallergenic, antiasthmatic, or cardiotonic drugs, central nervous system stimulants, and diuretics.
某些1,3-二烷基茶碱的功能化衍
生物表现出高效和选择性,作为A.sub.1-和A.sub.2-
腺苷受体的拮抗剂,并适合附加到探针、药物载体或固体支持物上。这些衍
生物的特点是在8位上存在一个苯基,该苯基带有一个功能化链,以提供高
水溶性和高受体亲和力,以至于这些化合物适用于作为抗过敏、抗哮喘或心力衰竭药物、中枢神经系统兴奋剂和利尿剂。