Synthesis of some N-benzhydrylpiperazine derivatives as calcium antagonists.
The preparation of a series of 24 N-benzhydrylpiperazine derivatives is described. Their efficacy as calcium antagonists was examined with reference to changes in the permeability of the cell membrane to extracellular and intracellular calcium. Compounds 14, 15, 17 and 19 were the most powerful when compared with known calcium antagonists such as cinnarizine, flunarizine, and aligeron ([1-diphenylmethyl)-4-(2-propenyl)]-piperazine), and were selected for further study.
Centro de Investigación, Grupo Ferrer, Barcelona, Spain.
S
S
Gubert
M A
MA
Brasó
A
A
Sacristán
J A
JA
Ortiz
D000818:Animals; D001013:Aorta, Thoracic / Q000187:drug effects; D001559:Benzhydryl Compounds / Q000138:chemical synthesis* / Q000494:pharmacology / Q000633:toxicity; D002121:Calcium Channel Blockers / Q000138:chemical synthesis* / Q000494:pharmacology / Q000633:toxicity; D055598:Chemical Phenomena; D002621:Chemistry; D006439:Hemodynamics / Q000187:drug effects; D066298:In Vitro Techniques; D008297:Male; D009119:Muscle Contraction / Q000187:drug effects; D009131:Muscle, Smooth, Vascular / Q000187:drug effects; D009638:Norepinephrine / Q000494:pharmacology; D010879:Piperazines / Q000138:chemical synthesis* / Q000494:pharmacology / Q000633:toxicity; D011189:Potassium Chloride / Q000494:pharmacology; D011817:Rabbits; D051381:Rats; D013329:Structure-Activity Relationship; D014665:Vasodilator Agents
D001559:Benzhydryl Compounds; D002121:Calcium Channel Blockers; D010879:Piperazines; D014665:Vasodilator Agents; D011189:Potassium Chloride; D009638:Norepinephrine