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Alkaloids from alstonia undulifolia

โœ Scribed by Georges Massiot; Ahcene Boumendjel; Jean-Marc Nuzillard; Bernard Richard; Louisette Le Men-Olivier; Bruno David; Hamid A. Hadi


Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
262 KB
Volume
31
Category
Article
ISSN
0031-9422

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Three new monoterpenoid indole alkaloids, (14a,15a)-14,15-epoxyaspidofractinine (1) and maireines A and B (2 and 3, resp.), together with 19 known alkaloids, were isolated from the leaves and twigs of Alstonia mairei. The structures of the new compounds were elucidated by 1D-and 2D-NMR spectroscopic