7702. Prajmaline

Nomenclature

CAS number: 35080-11-6
(17R,21α)-17,21-Dihydroxy-4-propylajmalanium; N4-propylajmalinium; prajmalium; N-propylajmaline.
[C23H33N2O2]+.

Description and references

Prepn: J. Keck, Z. Naturforsch. 18b, 177 (1963); A. Bonati, E. Bombardelli, Farmaco Ed. Sci. 18, 851 (1963); J. Keck, DE 1154120 (1963 to Thomae); idem, US 3414577 (1968 to Boehringer, Ing.). Pharmacology: R. Koch, Arzneim.-Forsch. 22, 2079 (1972); H. M. Mertens et al., ibid. 23, 642 (1973); K.-W. Diederich, D. Boyksen, ibid. 1302. Toxicology: G. Von Philipsborn, B. Stalder, ibid. 22, 2085 (1972). Pharmacokinetics: A. T. Trompler et al., ibid. 33, 436 (1983). Mechanism of action: H. Langenfeld et al., J. Cardiovasc. Pharmacol. 15, 338 (1990). GC/MS determn in urine: H. H. Maurer, Arch. Toxicol. 64, 218 (1990). Clinical comparison with tocainide, q.v.: B. Schwartzkopff et al., Arzneim.-Forsch. 33, 153 (1983).

Chemical structure

Derivative

Hydrogen tartrate.

Nomenclature

CAS number: 2589-47-1
Prajmaline bitartrate; NPAB; GT-1012; Neo-Gilurytmal (Kali-Chemie).
C23H33N2O2.C4H5O6; mol wt 518.60.
C 62.53%, H 7.39%, N 5.40%, O 24.68%.

Properties

White crystals from ethanol + ether, mp 149-152°. LD50 in mice (mg/kg): 43 orally; 1.7 i.v. (Von Philipsborn, Stalder).

Therapeutic Category

Antiarrhythmic.

Keywords

Antiarrhythmic