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- Title
Steroidal Saponins from Disporopsis pernyi.
- Authors
Qing-Xiong Yang; Min Xu; Ying-Jun Zhang; Hai-Zhou Li; Chong-Ren Yang
- Abstract
Four new steroidal saponins, named disporosides AD (14), corresponding to (3β,25R)-3-[(β-D-glucopyranosyl-(1→2)-[β-D-glucopyranosyl-(1→6)]-β-D-glucopyranosyl)oxy]-5β-spirostan (1), (3β,25R)-3-[(β-D-glucopyranosyl-(1→2)-[6-O-hexadecanoyl-β-D-glucopyranosyl-(1→6)]-β-D-glucopyranosyl)oxy]-5β-spirostan (2), (3β,22R,25R)-26-[(β-D-glucopyranosyl)oxy]-3-[(β-D-glucopyranosyl-(1→2)-β-D-glucopyranosyl)oxy]-5β-furostan (3), and (3β,22R,25R)-26-[(β-D-glucopyranosyl)oxy]-3-[(β-D-glucopyranosyl-(1→2)-[β-D-glucopyranosyl-(1→6)]-β-D-glucopyranosyl)oxy]-5β-furostan (4), have been isolated from the fresh rhizomes of Disporopsis pernyi, together with the three known compounds Ys-I, agavoside B, and (3β,25R)-3-[(β-D-xylopyranosyl-(1→3)-β-D-glucopyranosyl-(1→4)-β-D-galactopyranosyl)oxy]-5α-spirostan-12-one. Their structures were elucidated by spectroscopic analyses, chemical transformations (acid hydrolysis), and comparison with literature data.
- Subjects
SAPONINS; SPIROSTAN; CHEMICAL processes; STEROID glycosides
- Publication
Helvetica Chimica Acta, 2004, Vol 87, Issue 5, p1248
- ISSN
0018-019X
- Publication type
Article