Quinoxaline N-oxide containing potent angiotensin II receptor antagonists: synthesis, biological properties, and structure-activity relationships
作者:Kyoung Soon Kim、Ligang Qian、J. Eileen Bird、Kenneth E. J. Dickinson、Suzanne Moreland、Thomas R. Schaeffer、Thomas L. Waldron、Carol L. Delaney、Harold N. Weller、Arthur V. Miller
DOI:10.1021/jm00068a010
日期:1993.8
novel quinoxaline heterocycle containing angiotensin II receptor antagonist analogs were prepared. This heterocycle was coupled to the biphenyl moiety via an oxygen atom linker instead of a carbon atom. Many of these analogs exhibit very potent activity and long duration of effect. Interestingly, the N-oxide quinoxaline analog was more potent than the nonoxidized quinoxaline as in the comparison of
制备了一系列新的含喹喔啉杂环的血管紧张素Ⅱ受体拮抗剂类似物。该杂环通过氧原子接头而不是碳原子与联苯部分偶联。这些类似物中的许多表现出非常有效的活性和长的作用持续时间。有趣的是,如化合物5与30的比较,N-氧化物喹喔啉类似物比未氧化的喹喔啉更有效。为了提高口服活性,将这些化合物的羧酸功能转化为双酯。这种变化确实导致口服活性的改善,如化合物44所示。