DE NOUVEAUX ALCALOÏDES QUATERNAIRES DUSTRYCHNOS USAMBARENSIS
- 1 February 1975
- journal article
- Published by Georg Thieme Verlag KG in Planta Medica
- Vol. 27 (01) , 19-23
- https://doi.org/10.1055/s-0028-1097755
Abstract
We have isolated and identified three quaternary monomeric alkaloids from barks of Strychnos usambarensis roots. Besides Macusine–B, previously found in Strychnos toxifera, two new products are described: O–methyl–Macusine–B and O–methyl-dihydro–Macusine–B. It is not easy to discuss the origin of these last alkaloids that take form perhaps during the extraction. The purification is very laborious because Strychnos usambarensis contains more than sixty alkaloids.Keywords
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