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The structural and biogenetical relationship of vincamine, vincanorine and eburnamonine

✍ Scribed by J. Mokrý; I. Kompiš; P. Šefčovič

Publisher
Elsevier Science
Year
1962
Tongue
French
Weight
230 KB
Volume
3
Category
Article
ISSN
0040-4039

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✦ Synopsis

BY investigation of the structure of vincamine (Ia), the main alkaloid of Vinca minor L.,l vincamone by oxydation of vincaminic acid (Ib) with the amoniacal solution Ag'and by oxydation of vincaminole (Ic) with periodic acid respectively has been obtained. Vincamone has also been obtained from vincamine in a different manner.2 Its infra-red dnd ultra-violet spectra and its melting point, thus its fundamental structure are identical with those of eburnamonine (II), isolated by Bartlett and Taylor from Hunteria eburnea Pichon. 3 From Vinca minor L. another alkaloid -vincanorine' the infra-red and ultra-violet spectrum (A,,, 242 rnp, log s 4.33; Amax 268 mp, log s 4.03;

x max 296 mp, log E 3.71; Ama, 304 rnp, log s 3.71) of which is identical with that of vincamone and eburnamonine 5 has been isolated.

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