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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
6
|
| pubmed:dateCreated |
1990-2-22
|
| pubmed:abstractText |
Two new nortriterpenoid saponins, named yemuoside YM10 (I) and YM12 (II), were isolated from Stauntonia chinensis Decne. A new prosaponin (VI) was isolated from the cleavage of ester-glycoside linkage. Their chemical structures were elucidated by means of chemical and spectrometric analysis. Yemuoside YM10 (I): C58H92O25, a white powder, mp 215-219 degrees C (dec), [alpha]D20-4.41 degrees (c 0.272, CH3OH). Its structure was found to be 28-O-alpha-L-rhamnopyranosyl- (1----4) -beta-D-glucopyranosyl- (1----6) -beta-D-glucopyranosyl ester of 3-O-alpha-L-rhamnopyranosyl-(1----2)-alpha-L-arabinopyranosyl-30-+ ++norolean-12, 20 (29) -dien-28-oic acid. Yemuoside YM12 (II): C52H82O21, a white powder, mp 200-204 degrees C (dec.), [alpha]D20 + 10.12 degrees (c 0.346, CH3OH). Its structure was found to be 28-O-beta-D-glucopyranosyl- (1----6) -beta-D-glucopyranosyl ester of 3-O-alpha-L-rhamnopyranosyl- (1----2) -alpha-L-arabinopyranosyl-30-norolean-12, 20 (29)-dien-28-oic acid. Prosaponin (VI): C40H62O11, a white powder, mp 243-246 degrees C (dec.), [alpha]D22 + 12.13 degrees (c 0.128, CH3OH). Its structure was found to be 3-O-alpha-L-rhamnopyranosyl- (1----2)-alpha-L-arabinopyranosyl-30-norolean-12, 20 (29)-dien-28-oic acid.
|
| pubmed:language |
chi
|
| pubmed:journal | |
| pubmed:citationSubset |
IM
|
| pubmed:chemical | |
| pubmed:status |
MEDLINE
|
| pubmed:issn |
0513-4870
|
| pubmed:author | |
| pubmed:issnType |
Print
|
| pubmed:volume |
24
|
| pubmed:owner |
NLM
|
| pubmed:authorsComplete |
Y
|
| pubmed:pagination |
444-51
|
| pubmed:dateRevised |
2008-11-21
|
| pubmed:meshHeading | |
| pubmed:year |
1989
|
| pubmed:articleTitle |
[The structures of yemuoside YM10 and YM12 from Stauntonia chinensis].
|
| pubmed:publicationType |
Journal Article,
English Abstract
|