Benzodiazepines As Potent And Selective Bradykinin B-1 Antagonists

Antagonism of the bradykinin B-1 receptor was demonstrated to be a potential treatment for chronic pain and inflammation. Novel benzodiazepines were designed that display subnanomolar affinity for the bradykinin B, receptor (K-i = 0.59 nM) and high selectivity against the bradykinin B-2 receptor (K-i > 10 muM). In vivo efficacy, comparable to morphine, was demonstrated for lead compounds in a rodent hyperalgesia model.