- Organic phosphorus compounds. 5. (4-Benzothiazol-2-ylbenzyl)amidophosphonate as potent calcium antagonistic vasodilators.
Organic phosphorus compounds. 5. (4-Benzothiazol-2-ylbenzyl)amidophosphonate as potent calcium antagonistic vasodilators.
Journal of medicinal chemistry (1990-08-01)
K Yoshino, K Goto, K Yoshiizumi, T Morita, G Tsukamoto
PMID2374146
RESUMEN
Structural modifications of the calcium antagonist fostedil (KB-944) and their coronary vasodilator activity are described. Amidophosphonates 4a-m, lactam amidophosphonates 7a-1, and diamide dilactam 10 were prepared, and their coronary vasodilator activity was assessed in dogs. Many compounds exhibited coronary vasodilator activity superior to that of fostedil. Among them, the 2-oxopyrrolidine derivative 7a was the most effective compound. Its action as a coronary vasodilator was 3 and 2 times more potent than that of fostedil and diltiazem hydrochloride, respectively.
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