We have synthesized new 1, 4-dihydropyridine derivatives having nitrooxyalkylester moieties at the 3- and 5-positions in order to develop potent and long-lasting vasodilators. The antihypertensive activities of these compounds were compared with that of nifedipine. One of them, 2-nitrooxypropyl 3-nitrooxypropyl 2, 6-dimethyl-4-(3-nitrophenyl)-1, 4-dihydro-3, 5-pyridinedicarboxylate (CD-349) was selected for further development. The structure-activity relationship is discussed.
1, 4-Dihydropyridine derivatives having two nitrooxyalkyl moieties as esters at the 3 and 5 positions possess antihypertensive activity. To understand how substituents affect the biological activity, the quantitative structure-activity relationship (QSAR) of 27 compounds was analyzed using the Fuzzy adaptive least-squares (FALS 91) method. The QSAR models suggested that the hydrophobicity and electronic effect at the 4 position of the 1, 4-dihydropyridine along with the special structures of the nitrooxyalkylester components are important for antihypertensive activity.
Novel 2-Amino-1,4-dihydropyridine Calcium Antagonists. I. Synthesis and Antihypertensive Effects of 2-Amino-1,4-dihydropyridine Derivatives Having Nitroxyalkoxycarbonyl Groups at 3- and/or 5-Position.
Novel 2-amino-1,4-dihydropyridine derivatives, which contain nitroxy-alkoxycarbonyl groups at the 3- and/or 5-position, were synthesized and their pharmaceutical effect was evaluated in spontaneously hypertensive rats. The structure-activity relationships are discussed in terms of potency, onset-rapidity, and duration of antihypertensive activity. Remarkably prolonged duration of antihypertensive action
1,4-Dihydropyridine derivatives and use as vasodilators
申请人:Taisho Pharmaceutical Co., Ltd.
公开号:US04472411A1
公开(公告)日:1984-09-18
The compounds of the formula ##STR1## wherein R is alkyl having 1 to 4 carbon atoms or nitratoalkyl having 2 or 3 carbon atoms, and R' is nitratoalkyl having 2 or 3 carbon atoms, are disclosed. These compounds are useful as therapeutic agents for cardiovascular disorders such as coronary artery disease, cerebral artery disease, hypertension and the like.