Steroid glycosides of the seeds ofNicotiana tabacum. II. The structures of nicotianosides C and F

Autor:	V. I. Grishkovets, S. A. Shvets, O. N. Gutsu, P. K. Kintya
Rok vydání:	1996
Předmět:	chemistry.chemical_classification Chemical transformation biology Stereochemistry medicine.medical_treatment Glycoside Plant Science General Chemistry biology.organism_classification General Biochemistry Genetics and Molecular Biology Steroid Steroid glycoside chemistry medicine Nicotiana
Zdroj:	Chemistry of Natural Compounds. 31:332-335
ISSN:	1573-8388 0009-3130
DOI:	10.1007/bf01165196
Popis:	From the seeds of tobacco Nicotiana tabacumL. we have isolated two new steroid glycosides, nicotianosidesC andF. The structures of the glycosides have been shown on the basis of chemical transformations and spectral characteristics. Nicotianoside C is a steroid glycoside of the spirostan series and has the structure of (25S)-5α-spirostan-3s-ol3-O-[α-L-rhamnopyranosyl-(1 → 2)]-[α-L-rhamnopyranosyl-(1→ 4)]-s-Dglucopyranoside), and nicotianoside F is (25S)-5α furostan-3s, 22α, 26-triol 3-O-[α-L-rhamnopyranosyl-(1 2)1-[α-L-rhamnopyranosyl-(1 → 4)1-s D-glucopyranoside) 26-O-s-D-glucopyranoside.
Databáze:	OpenAIRE
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