Two New Cholestane Bisdesmosides fromReineckia carnea

Autor:	Zhong-Quan Zhang, Lin Zhou, Jian-Chao Chen, Ming-Hua Qiu
Rok vydání:	2007
Předmět:	chemistry.chemical_classification Chemistry Stereochemistry Organic Chemistry Phosphodiesterase Glycoside Biochemistry Catalysis Inorganic Chemistry chemistry.chemical_compound Aglycone Drug Discovery Natural source Cholestane Physical and Theoretical Chemistry Beta (finance) Spectral data
Zdroj:	Helvetica Chimica Acta. 90:616-622
ISSN:	1522-2675 0018-019X
DOI:	10.1002/hlca.200790063
Popis:	Three cholestane bisdesmosides, together with the corresponding aglycone, were isolated from the whole plant of Reineckia carnea. By detailed analysis of the 1D- and 2D-NMR spectra, chemical methods, and comparison with spectral data of known compounds, the structures were determined to be (1 beta,3 beta,16 beta,22S)-cholest-5-ene-1,3,16,22-tetrol (1), (1 beta,3 beta,16 beta,22S)-cholest-5-ene-1,3,16,22-tetrol 1,16-di( beta-D-glucopyranoside) (2), (1 beta,3 beta,16 beta,22S)-cholest-5-ene-1,3,16,22-tetrol 1-[O-alpha-L-rhamnopyranosyl(1 -> 2)-beta-D-glucopyranoside] 16-(beta-D-glucopyranoside) (3), (1 beta,3 beta,16 beta,22S)-cholest-5-ene-1,3,16,22-tetrol 1-(P-D-glucopyranoside) 16-(3-O-acetyl-beta-D-glucopyranoside) (4). Compounds 3 and 4 appeared to be new compounds, while compound 1 was isolated for the first from a natural source. Compound 2 was isolated from the genus Reineckia for the first time.
Databáze:	OpenAIRE
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