Document Detail

Three New Resin Glycosides and a New Tetrahydropyran Derivative from the Seeds of <i>Quamoclit pennata</i>.
MedLine Citation:
PMID:  22863715     Owner:  NLM     Status:  In-Data-Review    
Three new resin glycosides, quamoclins V (1), VI (2), and VII (3) and a new tetrahydropyran derivative, quamopyran (4), were isolated from the seeds of Quamoclit pennata BOJER (Convolvulaceae). The chemical structures of these compounds were determined primarily on the basis of spectroscopic data. The carboxyl group of the aglycone, 11S-convolvulinolic acid, of 1 and 2 was linked intermoleculary with a hydroxy group of the sugar moiety to form a macrocyclic ester structure, as in already known jalapins, and 3 was an acylated glycosidic acid methyl ester. All of the sugar moieties of 1-3 were acylated by one 2S-methylbutyric acid. Compound 4 was a diketone having a tetrahydropyran ring.
Masateru Ono; Yoshinari Takaki; Masamitsu Takatsuji; Kousuke Akiyama; Masafumi Okawa; Junei Kinjo; Hiroyuki Miyashita; Hitoshi Yoshimitsu; Toshihiro Nohara
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Chemical & pharmaceutical bulletin     Volume:  60     ISSN:  1347-5223     ISO Abbreviation:  Chem. Pharm. Bull.     Publication Date:  2012  
Date Detail:
Created Date:  2012-08-06     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0377775     Medline TA:  Chem Pharm Bull (Tokyo)     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  1083-7     Citation Subset:  IM    
School of Agriculture, Tokai University.
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