Structural Formula Vector Image
Title: Isradipine
CAS Registry Number: 75695-93-1
CAS Name: 4-(4-Benzofurazanyl)-1,4-dihydro-2,6-dimethyl-3,5-pyridinedicarboxylic acid methyl 1-methylethyl ester
Additional Names: isopropyl 4-(2,1,3-benzoxadiazol-4-yl)-1,4-dihydro-5-methoxycarbonyl-2,6-dimethyl-3-pyridinecarboxylate; 4-(2,1,3-benzoxadiazol-4-yl)-2,6-dimethyl-1,4-dihydro-3-isopropyloxycarbonylpyridine-5-carboxylic acid methyl ester; isrodipine
Manufacturers' Codes: PN-200-110
Trademarks: Clivoten (Lifepharma); DynaCirc (Novartis); Esradin (Sigma-Tau); Lomir (Novartis); Prescal (Novartis)
Molecular Formula: C19H21N3O5
Molecular Weight: 371.39
Percent Composition: C 61.45%, H 5.70%, N 11.31%, O 21.54%
Literature References: Dihydropyridine calcium channel blocker. Prepn: P. Neumann, DE 2949491; idem, US 4466972 (1980, 1984 both to Sandoz). Prepn of enantiomers: A. Vogel, DE 3320616 (1983 to Sandoz), C.A. 101, 7162s (1984). Comparative study of in vitro effects on human and canine cerebral arteries: E. Müller-Schweinitzer, P. Neumann, J. Cereb. Blood Flow Metab. 3, 354 (1983). Effect on a-adrenoceptor mediated vasoconstriction in rats: K. Jie et al., Arch. Int. Pharmacodyn. 278, 72 (1985). Pharmacokinetics: F. L. S. Tee, J. M. Jaffe, Eur. J. Clin. Pharmacol. 32, 361 (1987). Clinical evaluation in angina and coronary artery disease: C. E. Handler, E. Sowton, ibid. 27, 415 (1984); in hypertension: E. B. Nelson et al., Clin. Pharmacol. Ther. 40, 694 (1986). Comparison of hemodynamic effects of enantiomers: R. P. Hof et al., J. Cardiovasc. Pharmacol. 8, 221 (1986). Series of articles on pharmacology and clinical use: Am. J. Med. 86, 1-146 (1989).
Properties: mp 168-170°.
Melting point: mp 168-170°
Derivative Type: S(+)-Form
Manufacturers' Codes: PN-205-033
Properties: Crystals from ether + hexane, mp 142°. [a]D20 +6.7° (c = 1.5 in ethanol).
Melting point: mp 142°
Optical Rotation: [a]D20 +6.7° (c = 1.5 in ethanol)
Derivative Type: R(-)-Form
Manufacturers' Codes: PN-205-034
Properties: Crystals from ether + hexane, mp 140°. [a]D20 -6.7° (c = 1.67 in ethanol).
Melting point: mp 140°
Optical Rotation: [a]D20 -6.7° (c = 1.67 in ethanol)
Therap-Cat: Antihypertensive; antianginal.
Keywords: Antianginal; Antihypertensive; Dihydropyridine Derivatives; Calcium Channel Blocker; Dihydropyridine Derivatives.

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