Abstract
Two steroid glycosides of the spirostan series — nicotianosides A and B — and one glycoside of the furostan series — nicotianoside E — have been isolated from the seeds ofNicotiana tabacum L. Nicotianoside A is (25S)-5α-spirostan-3β-ol 3-O-β-D-glucopyranoside, nicotianoside B is (25S)-5β-spirostan-3β-ol 3-O-[O-α-L-rhamnopyranosyl-(1→2)-gb-D-glucopyranoside], and nicotianoside E is (25S)-5α-furostan-3β,22α,26-triol 26-O-β-glucopyranoside 3-O-[O-α-L-rhamnopyranosyl-(1→2)-β-D-glucopyranoside].
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Institute of Genetics, Academy of Sciences of the Republic of Moldava, Kishinev, ul. Lesnaya, 20. Translated from Khimiya Prirodnykh Soedinenii, No. 6, pp. 737–742, November–December, 1994.
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Shvets, S.A., Kintya, P.K. & Gutsu, O.N. Steroid glycosides ofNicotiana tabacum seeds I. The structures of nicotianosides A, B, and E. Chem Nat Compd 30, 684–688 (1994). https://doi.org/10.1007/BF00630603
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DOI: https://doi.org/10.1007/BF00630603