5-Hydroxy-3,4′,6,7-tetramethoxyflavone
نویسندگان
چکیده
The title compound, C(19)H(18)O(7) [systematic name 5-hy-droxy-3,6,7-tri-meth--oxy-2-(4-meth-oxy-phen-yl)-4H-1-benzopyran-4-one], is a flavonoid which was isolated from the traditional Chinese medicine Laggera alata. The benzene ring of the benzopyran-one unit forms dihedral angles of 1.72 (3) and 37.39 (5)° with the pyran ring and the substituent benzene ring, respectively. The mol-ecular conformation is stabilized by an intra-molecular phenol O-H⋯O(ketone) hydrogen bond.
منابع مشابه
Synthesis and antimicrobial activity of some novel heterocycles containing thiazole, oxazole, thiazine, oxazine and triazole moiety
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