Chemische und Chemotaxonomische Untersuchungen der Pterophyten. LIX. Chemische Untersuchungen der Inhaltsstoffe von Alsophila spinulosa TRYON

HIROSHI WADA; TOSHIKO SATAKE; TAKAO MURAKAMI; TOSHINORI KOJIMA; YASUHISA SAIKI; CHIUMING CHEN

doi:10.1248/cpb.33.4182

HIROSHI WADA, TOSHIKO SATAKE, TAKAO MURAKAMI, TOSHINORI KOJIMA, YASUHISA SAIKI, CHIUMING CHEN

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Keywords: biflavonoid ¹³C-NMR

JOURNAL FREE ACCESS

1985 Volume 33 Issue 10 Pages 4182-4187

DOI https://doi.org/10.1248/cpb.33.4182

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Abstract

From the fronds of Alsophila spinulosa TRYON biflavonoids Hegoflavone A (I) and B (II) were isolated and their structures were elucidated by spectroscopic analysis and chemical degradation to be 2, 3-dihydro-3'''-hydroxy-6, 6'''-biapigenin (I) and 2, 3-dihydro-6, 6'''-biluteolin (II) respectively. These are the first reports of a C-6/C-6'''-linked biflavonoid in nature.

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