51415-02-2Relevant articles and documents
Method for preparing panax japonicus saponin IVa butyl ester
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Paragraph 0043; 0057-0058, (2020/02/10)
The invention discloses a method for preparing panax japonicus saponin IVa butyl ester. The method comprises the following steps: performing an indican reaction on 4,6-benzylidene protected glucose thioglycoside and 28-site glucose modified oleanolic acid so as to obtain a disaccharide oleanolic acid skeleton, performing an oxidation reaction with hydroxyl of which a protection group and glycol are cut off so as to obtain an intermediate, and enabling the intermediate to react with iodobutane, so as to obtain panax japonicum saponin IVa.
TRITERPENE GLYCOSIDES OF Silphium perfoliatum. V. THE STRUCTURE OF SILPHIOSIDE A
Davidyants, E. S.,Putieva, Zh. M.,Bandyukova, V. A.,Abubakirov, N. K.
, p. 58 - 60 (2007/10/02)
From the epigeal part of Silphium perfoliatum L. we have isolated glycoside F, identified as oleanolic acid 3-O-β-D-glucopyranosiduronic acid and a new triterpene glycoside - silphioside A - for which the structure of oleanolic acid 28-O-β-D-glucopyranoside 3-O-(methyl β-D-glucopyranosiduronate) has been established.