(2α,17S,19E)-19,20-Didehydro-17-hydroxyajmalan-16-carboxylic acid methyl ester

(2α,17S,19E)-19,20-Didehydro-17-hydroxyajmalan-16-carboxylic acid methyl ester Chemische Eigenschaften,Einsatz,Produktion Methoden

• Beschreibung

  A minor constituent of Vinca major, this alkaloid has been obtained by chromatography of the alkaloidal fraction followed by recrystallization from MeOH when it forms long, colourless needles. It is laevorotatory with [α]D - 55° (c 0.45, 96% EtOH). The crystalline hydrochloride has m.p. 259-261°C (dec.); [α]D -40° (c 0.38, H2O). One secondary non-phenolic hydroxyl group is present and the O-acetate is identical with Vincamedine (q.v.).

• Einzelnachweise

  Janot, LeMen., Compt. rend., 241,767 (1955)

(2α,17S,19E)-19,20-Didehydro-17-hydroxyajmalan-16-carboxylic acid methyl ester Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

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