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An investigation by mass spectrometry of the alkaloids of Aspidosperma quebracho-blanco

โœ Scribed by K. Biemann; Margot Friedmann-Spiteller; G. Spiteller

Publisher
Elsevier Science
Year
1961
Tongue
French
Weight
390 KB
Volume
2
Category
Article
ISSN
0040-4039

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โœฆ Synopsis

IN recent years many Aspidosperma species have been investigated chemically and a number of new alkaloids were found and shown to belong to three groups: derivatives of aihydroindoles, indoles, and pyridocarbazoles. The structures of most of these compounds have been elucidated recently.

1 The best known source of aspidosperma alkaloids is the bark of A. quebracho blanco Schlecht., 2 which contains three alkaloids of known structure; namely, aspidospermine, 3,4 quebrachanine5 and quebrachine (later found to be yohimbine$. In addition to these three alkaloids, Rssse had originally also isolated aspidospermatine, aspidosamine and hypoquebrachine. The existence of the three last-mentioned compounds, not well characterized, was doubted by some of the workers in the field..

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