Title: Biologically active clerodane-type diterpene glycosides from the root-stalks of Dicranopteris pedata
Abstract: The molecular structure of the biologically active diterpene alcohol isolated previously from the root-stalks of Dicranopteris pedata and Gleichenia japonica was confirmed to be (6S,13S)-cleroda-3,14-diene-6,13-diol by an X-ray crystallographic analysis, together with application of the octant rule to the Cotton effect observed in the CD spectrum of its 6-keto derivative. Further investigation of the root-stalks of D. pedata has resulted in the isolated two new glycosides, which were characterised as (6S,13S)-6-O-[β-d-glucopyranosyl-(1 → 4)-α-l-rhamnopyranosyl]-13-O-[α-l-rhamnopyranosyl-(1 → 4)-β-d- fucopyranosyl]-cleroda-3,14-diene and (6S,13S)-6-O-[β-glucopyranosyl]-13-O-[β-fucopyranosyl-(1 → 2)-α-rhamnopyranosyl]-cleroda-3,14-diene. Of these two glycosides, the former glycoside accelerated the growth of the stems of lettuce and inhibited the growth of the roots.
Publication Year: 1997
Publication Date: 1997-11-01
Language: en
Type: article
Indexed In: ['crossref', 'pubmed']
Access and Citation
Cited By Count: 19
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