Chemical and Pharmaceutical Bulletin
Online ISSN : 1347-5223
Print ISSN : 0009-2363
ISSN-L : 0009-2363
Novel 1, 4-Dihydropyridine Calcium Antagonists. II. Synthesis and Antihypertensive Activity of 3-[4-(Substituted Amino)phenylalkyl]ester Derivatives
Atsuyuki ASHIMORITaizo ONOYoshihisa INOUESatoshi MORIMOTOMasahiro EDATakeshi UCHIDAYutaka OHTAKIYoshiyuki FUJINOHideaki KIDOYasushi OGURAChikara FUKAYAMasahiro WATANABEKazumasa YOKOYAMA
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1991 Volume 39 Issue 1 Pages 91-99

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Abstract
Novel 1, 4-dihydropyridine derivatives bearing 3-[4-(substituted amino)phenylalkyl]ester side chains were prepared and tested for their antihypertensive activity in spontaneously hypertensive rats. Most compounds showed a more potent antihypertensive effect and a longer duration of action than nicardipine. The derivatives with a benzhydrylpiperazinyl and a benzhydrylpiperidinyl group were distinvtive. 2-[4-(4-Benzhydryl-1-piperazinyl)phenyl]ethyl methyl 1, 4-dihydro-2, 6-dimethyl-4-(3-nitrophenyl-3, 5-pyridinedicarboxylate (4e), its 4-(4-cyano-2-pyridyl) analogue (4f), its 3-[4-(4-benzhydryl-1 piperazinyl)phenyl]propyl ester analogue (4h), its 2-[4-(4-benzhydryl-1-piperidinyl)phenyl]ethyl ester analogue (4j), and its 2-[4-(1-benzhydryl-4-piperidinyl)phenyl] ester ethyl analogue (4k) were selected as candidates for further pharmacological investigations.
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© The Pharmaceutical Society of Japan
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