Lignans from the Bark ofMagnolia kobus

Autor:	Don-Ha Choi, Seon-Mi Seo, Hyun-Jin Jo, Hak-Ju Lee, Ha-Young Kang, Merajuddin Khan, Oh-Kyu Lee, Ki-Hyon Paik
Rok vydání:	2008
Předmět:	biology Chemistry Stereochemistry Organic Chemistry Magnolia kobus DEPT biology.organism_classification Biochemistry Catalysis Methylenedioxy Inorganic Chemistry chemistry.chemical_compound visual_art Drug Discovery visual_art.visual_art_medium Bark Physical and Theoretical Chemistry Spectral data
Zdroj:	Helvetica Chimica Acta. 91:2361-2366
ISSN:	1522-2675 0018-019X
DOI:	10.1002/hlca.200890256
Popis:	The Et2O-soluble fraction from the bark of Magnolia kobus led to the isolation of two new lignans, (+)-(7α,7′α,8α,8′α)-3′,4,4′,5,5′-pentamethoxy-7,9′: 7′,9-diepoxylignan-3-ol (1) and (+)-(7α,7′α,8α,8′α)-4,5-dimethoxy-3′,4′-(methylenedioxy)-7,9′: 7′,9-diepoxylignan-3-ol (2), along with five known lignans 3–7. Their structures were established on the basis of various spectroscopic analyses including 1D- (1H, 13C, and DEPT) and 2D-NMR (COSY, NOESY, HMQC, and HMBC) and by comparison of their spectral data with those of related compounds.
Databáze:	OpenAIRE
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