UNTERSUCHUNGEN ÜBER DIE WIRKUNG DES IN<i>MARSDENIA ERECT A</i>R. BR. ENTHALTENEN HEMMSTOFFES

Zerlentis, C.

doi:10.1055/s-0028-1100099

Planta Med

1965

DOI: 10.1055/s-0028-1100099

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UNTERSUCHUNGEN ÜBER DIE WIRKUNG DES INMARSDENIA ERECT AR. BR. ENTHALTENEN HEMMSTOFFES

C. Zerlentis¹

Abstract: s 1962) wurde ein in der Asclepiadazee Marsdenia erecta R. Br. enthaltener glykosidischer Gifistoff isoliert und U. a. dessen Wirksamkeit auf tierische Organismen, wie Meerschweinchen und weiße Mäuse-Kleinfische und Tubifex-Würmer, untersucht. Ebenfalls wurde die bereits in den früheren Versuchen festgestellte Keimhemmung dieser Pflanze auf verschiedene andere Pflanzenarten a n Keimversuchen mit Kressesamen (Lepidium sativum L.

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Die Glykoside von Marsdenia erecta R. Br. 1. Mitteilung: Isolierungen. Glykoside und Aglykone, 325. Mitteilung

Saner

Zerlentis

Stöcklin

et al. 1970

Helvetica Chimica Acta

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Summary. Dried leaves of Marsdenia erecta R. Br. gave over 6% of a crude glycoside mixture, the main portion of which consisted of weakly polar material, soluble in ether or chloroform. By mild acid hydrolysis it yielded crude sugars and aglycones. The following four crist. sugars were isolated : D-cymarose, D-oleandrose and two bioses : pachybiose and marsectobiose (C,,H,,O,, new).By PC. and TLC. the presence of digitoxose, canarose, thevetose and 3-0-methyl-6-deoxyallose could be demonstrated. The crude acyl-genin mixture contained @-sitosteryl-B-D-glucopyranoside and three highly hydroxylated pregnane derivatives : drevogenin-P, 17 B-marsdenin (C,lH,,O,, new) and marsectohexol (C,,H,,O,, new), all partly esterified with acetic, tiglic and benzoic acid. Five crist. acyl-genins (Al-A5) were isolated by chromatography, but most of them still were mixtures. After alkaline hydrolysis of the crude acyl-genins 6 acyl-free compounds were obtained. 4 of them were identical with the above mentioned substances, the other two: 17-iso-drevogenin-P and marsdenin (17 m-marsdenin) are formed from drevogenin-P and 17B-marsdenin by isomerisation.

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Die Glykoside von Marsdenia erecta R. Br. 1. Mitteilung: Isolierungen. Glykoside und Aglykone, 325. Mitteilung

Saner

Zerlentis

Stöcklin

et al. 1970

Helvetica Chimica Acta

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Cardenolid- und Pregnanglykoside

Reichstein

1967

Naturwissenschaften

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UNTERSUCHUNGEN ÜBER DIE WIRKUNG DES INMARSDENIA ERECT AR. BR. ENTHALTENEN HEMMSTOFFES

Cited by 2 publications

References 0 publications

Die Glykoside von Marsdenia erecta R. Br. 1. Mitteilung: Isolierungen. Glykoside und Aglykone, 325. Mitteilung

Die Glykoside von Marsdenia erecta R. Br. 1. Mitteilung: Isolierungen. Glykoside und Aglykone, 325. Mitteilung

Cardenolid- und Pregnanglykoside

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