ISSN:
0018-019X
Keywords:
Chemistry
;
Organic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Three new saponins 1-3 were isolated from Herniaria glabra by means of prep. HPLC and TLC. The structures were established mainly by a combination of 2D-NMR techniques (COSY, TOCSY, ROESY, HMQC, and HMBC) as O-α-L-rhamnopyranosyl-(1→4)-O-β-D-glucopyranosyl-(1-→6)-O-[β-D-glucopyranosyl-(1→2)]-β-D-glucopyranosyl medicagen-28-ate (herniaria saponin 4; 1), O-β-D-glucopyranosyl-(1→3)-O-α-L-rhamnopyranosyl-(1→2)-O-[β-(3R)-D-apiofuranosyl-(1→3)]-β-D-4-O-acetylfucopyranosyl 3-O-(β-D-glucuronopyranosyl)-16α-hydroxymedicagen-28-ate (herniaria saponin 5; 2), and O-α-L-rhamnopyranosyl-(1→4)-O-β-D-glucopyranosyl-(1→6)-O-[β-D-6-O-acetylglucopyra nosyl-(1→2)]-β-D-glucopyranosyl medicagen-28-ate (herniaria saponin 6; 3).
Additional Material:
2 Tab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/hlca.19960790207
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