Spasmolytic constituents from Eucalyptus camaldulensis var. obtusa leaves

Authors
Begum, S",Farhat,"Sultana, I Siddiqui, BS Shaheen, F Gilani, AH
Citation
I. Begum, S",farhat,"sultana et al., Spasmolytic constituents from Eucalyptus camaldulensis var. obtusa leaves, J NAT PROD, 63(9), 2000, pp. 1265-1268
Citations number
32
Categorie Soggetti
Agricultural Chemistry","Pharmacology & Toxicology
Journal title
JOURNAL OF NATURAL PRODUCTS
ISSN journal
01633864 → ACNP
Volume
63
Issue
9
Year of publication
2000
Pages
1265 - 1268
Database
ISI
SICI code
0163-3864(200009)63:9<1265:SCFECV>2.0.ZU;2-I
Abstract
Phytochemical studies on the leaves of Eucalyptus camaldulensis var. obtusa have resulted in the isolation of a new triterpenoid camaldulin (3 beta-fo rmyloxyurs-11-en-28,13 beta-olide) (1) along with ursolic acid lactone acet ate (2), ursolic acid lactone (3), betulinic acid (4), and beta-sitosterol 3-O-beta-D-glucopyranoside (5). The structures were assigned on the basis o f 1D and 2D NMR studies. Compounds 1-3 were tested for spasmolytic activity and were found to possess calcium antagonist activity.