Melongosides n,o and p: steroidal saponins from seeds of solanum melongena |
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Authors: | Pavel K Kintia Stepan A Shvets |
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Institution: | Department of Plant Genetics, Academy of Sciences of the Moldavian S.S.R., Grosul Str. 1, Kishinev 277028, U.S.S.R. |
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Abstract: | Three new saponins, melongosides N, O and P, have been isolated from the methanolic extract of seeds of Solanum melongena and their structures elucidated. Melongoside N is 3-O-β-D-glucopyranosy l-(1 → 2)-β-D-glucopyranosyl]-26-O-(β-D-glucopyranosyl)-(25R)-5α-furostan-3β,22 α,26-triol, whereas melongoside O is 3-O-β-D-glucopyranosyl-(1 → 2)β-D-glucopyranosyl]- 26-O-(β-D-glucopyranosyl)-(25R)-furost-5-en-3β,22α,26-triol and melongoside P is 3-O- β-D-glucopyranosyl-(1 → 2)]-α-L-rhamnopyranosyl-(1 → 3)]-β-D-glucopyranosyl)-26-O- (β-D-glucopyranosyl)-(25 R)-5α-furostan-3β,22α,26-triol. |
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Keywords: | Solanaceae furostanol glycosides melongoside N melongoside O melongoside P |
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