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Title

Iguesterin, a new quinonoid triterpene from Catha cassinoides

AuthorsGonzález, Antonio G.; Freire, Raimundo ; Francisco, Cosme G. ; Salazar, José A.; Hernández, Rosendo ; Suárez, Ernesto
KeywordsCatha cassinoides
Celastraceae
Peralillo
Sitosterol
β-amyrin
Quinonoid triterpenes
Iguesterin
Celastrol
Pristimerin
Tingenone
PMR
Issue DateApr-1975
PublisherElsevier
CitationPhytochemistry 14(4): 1067-1070 (1975)
Abstractβ-Amyrin, sitosterol, celastrol, pristimerin, tingenone and a new hydroxymethylene quinonoid dinor-triterpene iguesterine were isolated from the root bark of Catha cassinoides. The structure of iguesterine was determined spectroscopically and by synthesis from tingenone. Tentative assignments are given for the chemical shifts of the methyl groups of iguesterin, tingenone and some of their derivatives.
Description4 pages, 1 table, 2 schemes.
Publisher version (URL)http://dx.doi.org/10.1016/0031-9422(75)85188-0
URIhttp://hdl.handle.net/10261/15182
DOI10.1016/0031-9422(75)85188-0
ISSN0031-9422
Appears in Collections:(IPNA) Artículos
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