Publication Date:
2016-05-03
Description:
Two new triterpenoid glycosides, 3 α ,19 α ,23 α -trihydroxy-2-oxo-12-ursen-28- O - β - d -glucopyranoside (1) and 3 α ,19 α ,23 α -trihydroxy-2-oxo-olean-12-en-28- O - β - d -glucopyranoside (2) as well as three known compounds, 2 α ,3 α ,19 α -trihydroxyolean-12-en-28- O - β - d -glucopyranoside (3), 2 α ,3 α ,19 α ,23-tetrahydroxy-12-ursen-28- O - β - d -glucopyranoside (4) and 2 α ,3 β ,19 α ,23-tetrahydroxyurs-12-en-28-oic acid (5) were isolated from 75% EtOH extract of R. cymosa . Their structures were elucidated by extensive spectroscopic methods. All the isolated compounds displayed moderate inhibitory activity against LPS-induced NO production in macrophages. This article is protected by copyright. All rights reserved.
Print ISSN:
0018-019X
Electronic ISSN:
1522-2675
Topics:
Chemistry and Pharmacology
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