Kaurene diterpenes and other chemical constituents from Mikania stipulacea (M. Vahl) willd

Phytochemical study of Mikania stipulacea yielded lupeol, alpha-amyrin, stigmasterol, beta-sitosterol, campesterol, beta-sitosteryl glucopyranoside, stigmasteryl glucopyranoside, the coumarin isoscopoletin, and vanillic, cinnamoylgrandifloric and ent-kaurenoic acids, besides two new diterpene acids:...

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Bibliographic Details
Published in:Journal of the Brazilian Chemical Society 2001-08, Vol.12 (4), p.552-555
Main Authors: Nascimento, Andréa M. do, Oliveira, Dionéia C. R. de
Format: Article
Language:English
Subjects:
Asteraceae
CHEMISTRY, MULTIDISCIPLINARY
diterpenes
ent-kaurenes
Mikania stipulacea
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Summary:Phytochemical study of Mikania stipulacea yielded lupeol, alpha-amyrin, stigmasterol, beta-sitosterol, campesterol, beta-sitosteryl glucopyranoside, stigmasteryl glucopyranoside, the coumarin isoscopoletin, and vanillic, cinnamoylgrandifloric and ent-kaurenoic acids, besides two new diterpene acids: ent-9alpha-hydroxy-15beta-E-cinnamoyloxy-16-kauren-19-oic and ent-9alpha-hydroxy-15beta-Z-cinnamoyloxy-16-kauren-19-oic. IR, ¹H and 13C NMR and MS spectroscopic analyses were used for the identification of these compounds.
ISSN:0103-5053
1678-4790
DOI:10.1590/S0103-50532001000400019