Chemische und chemotaxonomische Untersuchungen von Filices. XXXIV. Chemische Untersuchungen der Inhaltsstoffe von Pteris purpureorachis COPEL.

NOBUTOSHI TANAKA; TAKAO MURAKAMI; YASUHISA SAIKI; CHIUMING CHEN; YOICHI IITAKA

doi:10.1248/cpb.29.663

Chemische und chemotaxonomische Untersuchungen von Filices. XXXIV. Chemische Untersuchungen der Inhaltsstoffe von Pteris purpureorachis COPEL.

NOBUTOSHI TANAKA, TAKAO MURAKAMI, YASUHISA SAIKI, CHIUMING CHEN, YOICHI IITAKA

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Keywords: X-ray crystallographic analysis

JOURNAL FREE ACCESS

1981 Volume 29 Issue 3 Pages 663-666

DOI https://doi.org/10.1248/cpb.29.663

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Abstract

From the fronds of Pteris purpureorachis COPEL. three new ent-atisane type diterpenes, pteroatisene P₁, P₂ and pteroatisenoside P₁, were isolated. Their structures were elucidated using some chemical transformations, spectroscopic methods and X-ray crystallographic analysis as ent-9-hydroxy-15-oxo-atis-16-en-19-oic acid, ent-9, 15α-dihydroxy-atis-16-en-19-oic acid and ent-9-hydroxy-15-oxo-atis-16-en-19-oic acid-β-D-glucosylester.

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