Chemical constituents of Alstonia scholaris (L.) R. Br
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 rati...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | text |
| Published: |
Animo Repository
2016
|
| Subjects: | |
| Online Access: | https://animorepository.dlsu.edu.ph/faculty_research/1592 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Institution: | De La Salle University |
| id |
oai:animorepository.dlsu.edu.ph:faculty_research-2591 |
|---|---|
| record_format |
eprints |
| spelling |
oai:animorepository.dlsu.edu.ph:faculty_research-25912021-07-07T02:15:33Z Chemical constituents of Alstonia scholaris (L.) R. Br Ragasa, Consolacion Y. Batarra, Tyson C. Tan, Maria Carmen S. van Altena, Ian A. 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. 2016-01-01T08:00:00Z text https://animorepository.dlsu.edu.ph/faculty_research/1592 Faculty Research Work Animo Repository Apocynaceae--Analysis Chemistry |
| institution |
De La Salle University |
| building |
De La Salle University Library |
| continent |
Asia |
| country |
Philippines Philippines |
| content_provider |
De La Salle University Library |
| collection |
DLSU Institutional Repository |
| topic |
Apocynaceae--Analysis Chemistry |
| spellingShingle |
Apocynaceae--Analysis Chemistry Ragasa, Consolacion Y. Batarra, Tyson C. Tan, Maria Carmen S. van Altena, Ian A. Chemical constituents of Alstonia scholaris (L.) R. Br |
| 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 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. |
| format |
text |
| author |
Ragasa, Consolacion Y. Batarra, Tyson C. Tan, Maria Carmen S. van Altena, Ian A. |
| author_facet |
Ragasa, Consolacion Y. Batarra, Tyson C. Tan, Maria Carmen S. van Altena, Ian A. |
| author_sort |
Ragasa, Consolacion Y. |
| title |
Chemical constituents of Alstonia scholaris (L.) R. Br |
| title_short |
Chemical constituents of Alstonia scholaris (L.) R. Br |
| title_full |
Chemical constituents of Alstonia scholaris (L.) R. Br |
| title_fullStr |
Chemical constituents of Alstonia scholaris (L.) R. Br |
| title_full_unstemmed |
Chemical constituents of Alstonia scholaris (L.) R. Br |
| title_sort |
chemical constituents of alstonia scholaris (l.) r. br |
| publisher |
Animo Repository |
| publishDate |
2016 |
| url |
https://animorepository.dlsu.edu.ph/faculty_research/1592 |
| _version_ |
1705153072582361088 |