Four steroidal alkaloids from the leaves of Buxus sempervirens

Authors
Loru, F Duval, D Aumelas, A Akeb, F Guedon, D Guedj, R
Citation
F. Loru et al., Four steroidal alkaloids from the leaves of Buxus sempervirens, PHYTOCHEM, 54(8), 2000, pp. 951-957
Citations number
16
Categorie Soggetti
Agricultural Chemistry","Animal & Plant Sciences
Journal title
PHYTOCHEMISTRY
ISSN journal
00319422 → ACNP
Volume
54
Issue
8
Year of publication
2000
Pages
951 - 957
Database
ISI
SICI code
0031-9422(200008)54:8<951:FSAFTL>2.0.ZU;2-T
Abstract
Four new steroidal alkaloids, N-20-formylbuxaminol E [(20S)-16 alpha-hydrox y-20-(formylamino)-3 beta-(dimethylamino)-9,10-secobuxa- 9(11),10(19)-diene ] (1), O-16-syringylbuxaminol E [(20S)-16 alpha-syringoyl-3 beta-(dimethyla mino)-20-(amino)-9,10-seco-buxa- 9(11),10(19)-diene] (2), N-20-acetylbuxami ne G [(20S)-20-(acetylamino)-3 beta-(methylamino)-9, 10-seco-buxa-9(11),10( 19)-diene] (3) and N-20-acetylbuxamine E [(20S)-20-(acetylamino)-3 beta-(di methylamino)-9,10(19)-diene] (4) were isolated from the leaves of Buxus sem pervirens. Their structures were determined mainly on the basis of 2D NMR s tudies. (C) 2000 Elsevier Science Ltd. All rights reserved.