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New Dammarane Monodesmosides from the Acidic Deglycosylation of Notoginseng-Leaf Saponins

✍ Scribed by Jiang-Tao Chen; Hai-Zhou Li; Dong Wang; Ying-Jun Zhang; Chong-Ren Yang

Publisher
John Wiley and Sons
Year
2006
Tongue
German
Weight
77 KB
Volume
89
Category
Article
ISSN
0018-019X

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✦ Synopsis

Three new dammarane monodesmosides, named notoginsenosides Ft 1 (1), Ft 2 (2), and Ft 3 (3), together with three known ginsenosides, were obtained from a mild acidic hydrolysis of the saponins from notoginseng (Panax notoginseng (BURK.) F. H. CHEN) leaves. Their structures were elucidated to be (3b,12b,20R)-12,20-dihydroxydammar-24-en-3

(3), by means of spectroscopic evidences. The known ginsenosides Rh 2 and Rg 3 4 -6 were obtained as the major products from this acidic deglycosylation.

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