Chemical investigation of Andrographis wightiana

Autor:	T. R. Govindachari, B.R. Pai, P. C. Parthasarathy, P.S. Subramaniam
Rok vydání:	1965
Předmět:	chemistry.chemical_classification Andrographis food.ingredient food Stereochemistry Chemistry Organic Chemistry Drug Discovery Isolation (microbiology) Biochemistry Flavones
Zdroj:	Tetrahedron. 21:3237-3245
ISSN:	0040-4020
DOI:	10.1016/s0040-4020(01)96942-x
Popis:	The isolation of two new flavones, wightin and echioidinin, from Andrographis wightiana Arn. ex. Nees is reported. By a combination of spectral, degradative and synthetic evidence, wightin is shown to be 5,3′-dihydroxy-7,8,2′-trimethoxyflavone. Wightin appears to be the first example of a naturally occurring flavone with an unique 2′,3′-oxygenation pattern instead of the normal 3′, 4′-pattern.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::30765743fe9dc83a0c2d2038b151bc34 https://doi.org/10.1016/s0040-4020(01)96942-x Zobrazit plný text záznamu