166263-20-3Relevant academic research and scientific papers
Cardioselective antiischemic ATP-sensitive potassium channel openers. 4. Structure-activity studies on benzopyranylcyanoguanidines: Replacement of the benzopyran portion
Atwal, Karnail S.,Ferrara, Francis N.,Ding, Charles Z.,Grover, Gary J.,Sleph, Paul G.,Dzwonczyk, Steven,Baird, Anne J.,Normandin, Diane E.
, p. 304 - 313 (2007/10/03)
The results of our efforts aimed at the replacement of the benzopyran ring of the lead cardiac selective antiischemic ATP-sensitive potassium channel (K(ATP)) opener (4) are described. Systematic modification of the benzopyran ring of 4 resulted in the discovery of a structurally simpler acyclic analog (8) with slightly lower antiischemic potency than the lead compound 4. Further structure-activity studies on the acyclic analog 8 provided the 2- phenoxy-3-pyridylurea analog 18 with improved antiischemic potency and selectivity compared to the benzopyran-based compound 4. These data demonstrate that the benzopyran ring of 4 and its congeners is not mandatory for antiischemic activity and cardiac selectivity. The results described in this paper also show that, as for the benzopyran class of compounds, the structure-activity relationships for the antiischemic and vasorelaxant activities of K(ATP) openers are distinct. The mechanism of action of the acyclic analogs (e.g., 18) still appears to involve K(ATP) opening as their cardioprotective effects are abolished by pretreatment with the K(ATP) blocker glyburide.
Aryl urea and related compounds
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, (2008/06/13)
Compounds having the formula STR1 and pharmaceutically acceptable salts thereof wherein X is a single bond, O, CO, S, NH or N(lower alkyl); Y is O, S or NCN; and R 1 to R 5'' are as defined herein. These compounds have potassium channel activating activit
