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A new sterol from Vernonia anthelmintica seed oil

✍ Scribed by J.A. Fioriti; M.G. Kolor; R.P. McNaught

Publisher
Elsevier Science
Year
1970
Tongue
French
Weight
172 KB
Volume
11
Category
Article
ISSN
0040-4039

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## Abstract The main sterol of __Vernonia anthelmintica__ seed is 7,(__Z__)‐24(28)‐stigmastadienol (Ia). Stigmasterol and a C^29^‐sterol with a conjugated diene system, probably at C^8^ and C^14^, are also present, whilst GLC data indicate two other components to be 5‐stigmasten‐3β‐ol and 7,22‐stig

Vernodalidimers A and B, novel orthoeste
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Two novel elemanolide dimers, vernodalidimers A (1) and B (2), possessing a rare tricyclic ortho ester moiety, were isolated from the seeds of Vernonia anthelmintica. Their structures were elucidated by 1D and 2D NMR data and CD spectra. Vernodalidimers A (1) and B (2) exhibited potent cell growth i