Chemical and Chemotaxonomical Studies of Filices. LXXVII. Isolation and Structure of Novel Catechin and Proanthocyanidins from Dennstaedtia distenta MOORE

From the fronds of Dennstaedtia distenta, new flavan-3-ol (catechin) derivatives, distenin (1), its dimer (2) and its trimer (3), were isolated in addition to vitexin. On the basis of the spectroscopicand chemical evidence, their structures were established as (2R, 3R)-flavan-3, 5, 7-triol (1), dist...

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Veröffentlicht in:	Chemical & pharmaceutical bulletin 1988/11/25, Vol.36(11), pp.4301-4306
Hauptverfasser:	HORI, KAZUYUKI, SATAKE, TOSHIKO, SAIKI, YASUHISA, MURAKAMI, TAKAO, CHEN, CHIU-MING
Format:	Artikel
Sprache:	eng
Schlagworte:	Analytical, structural and metabolic biochemistry Aromatic and heterocyclic compounds Biological and medical sciences condensed tannin Dennstaedtia distenta distenin flavan-3-ol Fundamental and applied biological sciences. Psychology Heterocyclic compounds, pigments modified Horeau's method Other biological molecules proanthocyanidin prodistenidin thiolytic degradation
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Beschreibung
Zusammenfassung:	From the fronds of Dennstaedtia distenta, new flavan-3-ol (catechin) derivatives, distenin (1), its dimer (2) and its trimer (3), were isolated in addition to vitexin. On the basis of the spectroscopicand chemical evidence, their structures were established as (2R, 3R)-flavan-3, 5, 7-triol (1), distenin-(4β→8)-distenin (2) and distenin-(4β→8)-distenin-(4β→8)-distenin (3), respectively.
ISSN:	0009-2363 1347-5223
DOI:	10.1248/cpb.36.4301