Chemical and chemotaxonomical studies of ferns. LXXIII. New flavonoids with modified B-ring from the genus Pseudophegopteris (Thelypteridaceae).

H WADA, H FUJITA, T MURAKAMI, Y SAIKI…

文献索引：Wada, Hiroshi; Fujita, Hiroyuki; Murakami, Takao; Saiki, Yasuhisa; Chen, Chiu-Ming Chemical & Pharmaceutical Bulletin, 1987 , vol. 35, # 12 p. 4757 - 4762

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被引用次数: 27

摘要

Chemical studies of three representatives of the genus Pseudophegopteris (Thelypteridaceae) revealed that the genus is characterized by the occurrence of unusual flavonoids with a modified B-ring related to protogenkwanin (VII). From P. hirtirachis HOLTT., three novel compounds, protogenkwanone (I), tetrahydroprotogenkwanone (II) and tetrahydroprotogenkwanin (III), were isolated, along with protogenkwanin 4'-O-β-D- ...