Vasodilator activity of adenosine analogs.
Various adenosine analogs were evaluated as smooth muscle vasodilators. The compounds were screened ititially using a dog hindlimb preparation. Most analogs were less potent than adenosine. The three most potent compounds were tested for coronary vasodilator effects and duration of action on the isolated rabbit heart. 5'-Deoxy-5'-chloroadenosine and 5'-deoxy-5'-bromoadenosine were equipotent with adenosine but possessed a longer duration of action 2',3',5'-Trideoxy-3',5'-dichloroadenosine, an analog lacking both the 2'- and 3'-hydroxyl groups, had significant vasodilator activity.
D000241:Adenosine / Q000031:analogs & derivatives* / Q000494:pharmacology; D000818:Animals; D003326:Coronary Circulation / Q000187:drug effects; D004285:Dogs; D005260:Female; D006614:Hindlimb / Q000098:blood supply; D066298:In Vitro Techniques; D008297:Male; D011817:Rabbits; D012039:Regional Blood Flow / Q000187:drug effects; D013329:Structure-Activity Relationship; D014665:Vasodilator Agents
D014665:Vasodilator Agents; D000241:Adenosine