- DUNAWITHANINES A AND B, THE FIRST WITHANOLIDE GLYCOSIDES FROM DUNALIA AUSTRALIS
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Withanolide D, 7β-acetoxy-withanolide D and two new withanolide glycosides, named dunawithanines A and B, were isolated from Dunalia australis.From physical data and chemical transformations, the structures of the new compounds were determined as (20R,22R)-O(3)--3β,20-dihydroxy-1α-acetoxy-witha-5,24-dienolide and the corresponding O(3)-x)-β-D-glucopyranosyl> compound, representing the first withanolide glycosides found in the plant kingdom. - Key Word Index: Dunalia australis; Solanaceae; withanolide glycosides; steroidal lactones; dunawithanines A and B.
- Adam, Guenter,Chien, Nguen Quyet,Khoi, Nguen Huu
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