Triterpenoids from Dysoxylum malabaricum

Authors
Hisham, A Bai, MDA JayaKumar, G Nair, MS Fujimoto, Y
Citation
A. Hisham et al., Triterpenoids from Dysoxylum malabaricum, PHYTOCHEM, 56(4), 2001, pp. 331-334
Citations number
8
Categorie Soggetti
Agricultural Chemistry","Animal & Plant Sciences
Journal title
PHYTOCHEMISTRY
ISSN journal
00319422 → ACNP
Volume
56
Issue
4
Year of publication
2001
Pages
331 - 334
Database
ISI
SICI code
0031-9422(200102)56:4<331:TFDM>2.0.ZU;2-3
Abstract
Two triterpenes 21R,23R-epoxy-21 alpha -ethoxy-24S,25-dihydroxyapotirucall- 7-en-3-one and 24R-acetoxy-3 beta ,25-dihydroxycycloartane were isolated fr om the leaves of Dysoxylum malabaricum together with eight known compounds lupeone, lupeol, sitosterol, dipterocarpol, cycloart-25-ene-3 beta ,24-diol , 24R,25-dihydroxycycloartan-3-one, 3 beta ,24R,25-trihydroxycycloartane an d ergosta-5,24(24(1))-diene-3 beta ,4 beta ,20S-triol. The complete H-1 and C-13 NMR spectral assignment of the new apotirucallene triterpenoid has be en achieved by H-1-H-1 COSY, HMQC and HMBC experiments. (C) 2001 Elsevier S cience Ltd. All rights reserved.