1970 年 83 巻 986 号 p. 263-269
Flavonoid glycosides in the fronds of Dennstaedtia wilfordii were isolated to study the flavonoid pattern of the genus Dennstaedtia. The fronds contained pinocembrin 7-rhamnoglucoside (III), pinocembrin 7-glucoside (II), isoquercitrin (VII) and astragalin (V). Among them pinocembrin 7-rhamnoglucoside (III) was obtained as crystal and the sugar component was confirmed as neohesperidose (VIII) by NMR, enzymic hydrolysis and chromatographic behaviors. Other flavonoids were identified by paper and thin layer chromatography.
The flavonoid pattern of D. wilfordii was different from that of the four species belonging to the genus Adiantum, which had been already reported.