Phytochemistry p. 1257 - 1258 (1986)
Update date:2022-08-04
Topics:
Iinuma, M.
Fang, N.
Tanaka, T.
Mizuno, M.
Mabry, T. J.
et al.
The structure of a flavonoid from the fern Notholaena aschenborniana, previously described as 5,4',6'-trihydroxy-6,7,2',3'-tetramethoxyflavone, is revised to 5,2',4'-trihydroxy-3,7,8,5'-tetramethoxyflavone on the basis of current studies on 2'-oxygenated flavonoids.Identity of the natural product with the proposed structure is confirmed by synthesis. Key Word Index - Notholaena aschenborniana; Pteridophyta; Polypodiaceae; 5,2',4'-trihydroxy-3,7,8,5'-tetramethoxyflavone; synthesis.
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