Four steroidal alkaloids from the leaves of Buxus sempervirens

Four new steroidal alkaloids, N 20-formylbuxaminol E [(20S)-16α-hydroxy-20-(formylamino)-3β-(dimethylamino)-9,10-seco-buxa-9(11),10(19)-diene] ( 1), O 16-syringylbuxaminol E [(20S)-16α-syringoyl-3β-(dimethylamino)-20-(amino)-9,10-seco-buxa-9(11),10(19)-diene] ( 2), N 20-acetylbuxamine G [(20S)-20-(a...

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Bibliographic Details
Published in:Phytochemistry (Oxford) 2000-08, Vol.54 (8), p.951-957
Main Authors: Loru, Fabrice, Duval, Danièle, Aumelas, André, Akeb, Fatima, Guédon, Didier, Guedj, Roger
Format: Article
Language:English
Subjects:
Alkaloids - chemistry
Alkaloids - isolation & purification
Biological and medical sciences
Boxwood
Buxaceae
Buxus sempervirens
Chemical constitution
Fundamental and applied biological sciences. Psychology
Magnoliopsida - chemistry
Molecular Structure
N 20-Acetylbuxamine E
N 20-Acetylbuxamine G
N 20-Formylbuxaminol E
O 16-Syringylbuxaminol E
Plant Leaves - chemistry
Plant physiology and development
Spectrum Analysis
Steroidal alkaloids
Steroids - chemistry
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Summary:Four new steroidal alkaloids, N 20-formylbuxaminol E [(20S)-16α-hydroxy-20-(formylamino)-3β-(dimethylamino)-9,10-seco-buxa-9(11),10(19)-diene] ( 1), O 16-syringylbuxaminol E [(20S)-16α-syringoyl-3β-(dimethylamino)-20-(amino)-9,10-seco-buxa-9(11),10(19)-diene] ( 2), N 20-acetylbuxamine G [(20S)-20-(acetylamino)-3β-(methylamino)-9,10-seco-buxa-9(11),10(19)-diene] ( 3) and N 20-acetylbuxamine E [(20S)-20-(acetylamino)-3β-(dimethylamino)-9,10-seco-buxa-9(11),10(19)-diene] ( 4) were isolated from the leaves of Buxus sempervirens. Their structures were determined mainly on the basis of 2D NMR studies.
ISSN:0031-9422
1873-3700
DOI:10.1016/S0031-9422(00)00036-4