Neovibsanins H and 1, Novel Diterpenes from Viburnum awabuki.
نویسندگان
چکیده
منابع مشابه
Seven-membered vibsane-type diterpenes with a 5,10-cis relationship from Viburnum awabuki.
New five seven-membered vibsane-type diterpenes named 5-epi-vibsanin C, 5-epi-vibsanin H, 5-epi-vibsanin K, 18-O-methyl-5-epi-vibsanin K and 5-epi-vibsanin E have been isolated from the leaves of Viburnum awabuki (Caplifoliaceae). Their structures have been elucidated by analyses of spectroscopic data and comparison of their spectral data with those of the previously known seven-membered vibsan...
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Two new eleven-membered and three new seven-membered vibsane-type diterpenes, named vibsanin L (1) and 14-hydroxyvibsanin F (2), and vibsanin I (3), 14R*,15-epoxyvibsanin C (4) and 14S*,15-epoxyvibsanin C (5) respectively, have been isolated from Viburnum odoratissimum collected in Taiwan. Their structures have been elucidated by spectroscopic analyses and comparison of Nuclear magnetic resonan...
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For Viburnum odoratissimum var. awabuki, a pronounced growth promotion was observed on the lower side of the branches, which is a special case in angiosperms. To study the biomechanics of V. odoratissimum branch, we measured the growth strain (GS) in the standing tree based on a cumulative method and a direct method. GSs showed various distribution patterns: for some branches, the values on bot...
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Das raízes de Erythroxylum barbatum foram isolados dois novos diterpenos entrosan-1ona-5α,15ξ,16-triol (1) e ent-11α-acetoxi-devadarano-15ξ,16-diol (2), além do ent-devadarano15ξ,16-diol (erythroxidiol X, 3) e do procesterol. Investigação do lenho do caule forneceu o ent-devadarano-11α,15ξ,16-triol (erythroxitriol Q, 4), o ent-devadarano-7β,15ξ,16-triol (hidroxidevadarool, 5), o β-sitosterol e ...
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Das raízes de Hyptis platanifolia foram isolados três novos diterpenos abietanos 19-oxoinuroyleanol, 11,14-di-hidroxi-12-metoxi-7-oxo-8,11,13-abietatrien-19,20β-olídeo and 19,20-epoxi12-metoxi-11,14,19-tri-hidroxi-7-oxo-8,11,13-abietatrieno, em adição ao inuroyleanol e a coulterona. Investigação das partes aéreas forneceu a mistura de esteróides estigmasterol e β-sitosterol, e os triterpenos ác...
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ژورنال
عنوان ژورنال: Chemical and Pharmaceutical Bulletin
سال: 1998
ISSN: 0009-2363,1347-5223
DOI: 10.1248/cpb.46.545