- Title
- Chemical constituents of Alstonia scholaris (L.) R. Br
- Creator
- Ragasa, Consolacion Y.; Batarra, Tyson C.; Tan, Maria Carmen S.; van Altena, Ian A.
- Relation
- Der Pharma Chemica Vol. 8, Issue 20, p. 193-196
- Relation
- http://www.derpharmachemica.com/abstract/chemical-constituents-of-alstonia-scholaris-l-r-br-5426.html
- Publisher
- Scholars Research Library
- Resource Type
- journal article
- Date
- 2016
- Description
- 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 α-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'̾-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.
- Subject
- Alstonia scholaris; apocynaceae; stigmasterol; squalene; β-sitosteryl-3β-glucopyranoside-6'-̾ O-fatty acid esters; chlorophyll a; erythrodiol; uvaol; betulin; oleanolic acid; ursolic acid; β- amyrin acetate; α-amyrin acetate; β-sitosterol
- Identifier
- http://hdl.handle.net/1959.13/1343579
- Identifier
- uon:29211
- Identifier
- ISSN:0975-413X
- Language
- eng
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