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Alkaloids of the stem bark of Alstonia lanceolifera

✍ Scribed by T. Ravao; B. Richard; T. Sevenet; G. Massiot; L. le Men-Olivier


Publisher
Elsevier Science
Year
1982
Tongue
English
Weight
225 KB
Volume
21
Category
Article
ISSN
0031-9422

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Alkaloids of Alstonia lanceolifera
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The alkaloids of the bark of Alstonia ve
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The isolation and characterization of two new indole alkaloids of tetrahydro-P-carboline type, e., venenatine and isovenenatine in addition to reserpine and stigmasterol from the bark of Alstonia venenata R. Br. was reported some time ago.2s3 More recently venoxidine has been isolated and shown to b

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## Abstract Four new 11‐noriridoids named scholareins A–D (**1**–**4**), along with three known derivatives, isoboonein (**5**), alyxialactone (**6**), and loganin (**7**), were isolated from EtOH extracts of the bark of __Alstonia scholaris__ by chromatographic methods. Their structures were ident