Chemical constituents of Alstonia scholaris (L.) R. Br
College
College of Science
Department/Unit
Chemistry
Document Type
Article
Source Title
Der Pharma Chemica
Volume
8
Issue
20
First Page
193
Last Page
196
Publication Date
1-1-2016
Abstract
Chemical investigation of the dichloromethane extract of the leaves of Alstonia scholaris (L.) R. Br. has yielded mixtures of erythrodiol (1a), uvaol (1b), and betulin (1c) in a 1:1:1 ratio, oleanolic acid and ursolic acid in a 2:1 ratio, β-amyrin acetate (3b) and a-amyrin acetate (3b) in a 1:4 ratio, and β-sitosterol (4a) and stigmasterol (4b) in a 3:2 ratio; squalene (5), β-sitosteryl-3β-glucopyranoside-6 's -O-fatty acid esters (6), and chlorophyll a (7). The structures of 1-7 were identified by comparison of their NMR data with literature data.
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Recommended Citation
Ragasa, C. Y., Batarra, T. C., Tan, M. S., & van Altena, I. A. (2016). Chemical constituents of Alstonia scholaris (L.) R. Br. Der Pharma Chemica, 8 (20), 193-196. Retrieved from https://animorepository.dlsu.edu.ph/faculty_research/1592
Disciplines
Chemistry
Keywords
Apocynaceae--Analysis
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