1-aryl-4-substituted isoquinoline or 1-aryl-3,4-disubstituted isoquinoline analogues of Formula I and Formula II, as follows:
wherein R
1
, R
2
, R
3
, R
8
, R
9
, A and Ar are defined herein. Such compounds are ligands of C5
a
receptors. Preferred compounds of Formula I and II bind to C5
a
receptors with high affinity and exhibit neutral antagonist or inverse agonist activity at C5
a
receptors. The present invention also relates to pharmaceutical compositions comprising such compounds, and to the use of such compounds in treating a variety of inflammatory, cardiovascular, and immune system disorders. In addition, the present invention provides labeled 1-aryl-4-substituted isoquinolines or 1-aryl-3,4-disubstituted isoquinolines, which are useful as probes for the localization of C5
a
receptors.
以下为翻译结果:
本发明提供了公式I和公式II的1-芳基-4-取代
异喹啉或1-芳基-3,4-二取代
异喹啉类似物,其中R1、R2、R3、R8、R9、A和Ar在此定义。这些化合物是C5a受体的
配体。公式I和II的优选化合物具有高亲和力结合C5a受体,并在C5a受体上表现出中性拮抗剂或反向激动剂活性。本发明还涉及包含这些化合物的制药组合物,以及使用这些化合物治疗多种炎症、心血管和免疫系统疾病的用途。此外,本发明还提供了标记的1-芳基-4-取代
异喹啉或1-芳基-3,4-二取代
异喹啉,可用作定位C5a受体的探针。