Diterpene adducts from branches of Xylopia emarginata
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چکیده
منابع مشابه
In vitro and in vivo antitumor effect of trachylobane-360, a diterpene from Xylopia langsdorffiana.
Trachylobane-360 (ent-7α-acetoxytrachyloban-18-oic acid) was isolated from Xylopia langsdorffiana. Studies have shown that it has weak cytotoxic activity against tumor and non-tumor cells. This study investigated the in vitro and in vivo antitumor effects of trachylobane-360, as well as its cytotoxicity in mouse erythrocytes. In order to evaluate the in vivo toxicological aspects related to tra...
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A phytochemical investigation of the CHCl (3)-soluble extract of the entire plant of Egletes viscosa (Asteraceae), collected in Peru, afforded two new labdane glycosides, 13-hydroxy-7-oxolabda-8,14-diene 13( R)- O-alpha- L-arabinopyranoside and 13-hydroxylabda-7,14-diene 13( R)- O-alpha- L-arabinopyranoside, along with four known compounds. The structures of the new compounds were elucidated by...
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Three novel diterpene glycosides were isolated for the first time from the commercial extract of the leaves of Stevia rebaudiana, along with several known steviol glycosides, namely stevioside, rebaudiosides A-F, rubusoside and dulcoside A. The new compounds were identified as 13-[(2-O-β-D-glucopyranosyl-3-O-β-D-glucopyranosyl-β-D-glucopyranosyl)oxy] ent-kaur-15-en-19-oic acid, 13-[(2-O-β-D-glu...
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Um novo sesquiterpeno, aromadendrano-4β,10α,15-triol, foi isolado das folhas de Xylopia brasiliensis Spreng (Annonaceae), juntamente com quatro derivados de esqueleto aromadendrano e três esteróides. As estruturas dos metabólitos foram definidas por meio da análise dos respectivos espectros de RMN, incluindo experimentos bidimensionais, além de espectrometria de massas. Os sesquiterpenos aromad...
متن کاملFibre pits in wood of Xylopia emarginata Mart. (Annonaceae), Reserva Biológica e Estação Ecológica de Mogi-Guaçu, São Paulo State, Brazil
(Fibre pits in wood of Xylopia emarginata Mart. (Annonaceae), Reserva Biológica e Estação Ecológica de MogiGuaçu, São Paulo State, Brazil). The influence of environmental conditions such as flooding areas on the anatomical features of wood is little known. The aim of this study was to compare the fibre pits in the stems and in the roots of Xylopia emarginata growing in a swampy forest and in a ...
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ژورنال
عنوان ژورنال: Biochemical Systematics and Ecology
سال: 2006
ISSN: 0305-1978
DOI: 10.1016/j.bse.2006.07.001