Three New Diterpenoids from Taxus Chinensis.
نویسندگان
چکیده
منابع مشابه
New taxane diterpenoids from the roots of Taiwanese Taxus mairei.
Five new taxane diterpenoids, taxumairols G (1), H (2), I (3), J (4), and L (5) were isolated from extracts of the roots of Taiwanese Taxus mairei (LEMEE & LEVL.) S. Y. Hu. Compounds 1-4 belong to the new 11(15-->1)-abeo-taxene system, having a tetrahydrofuran ring along carbons C-2, C-3, C-4 and C-20. Compounds 3 and 4 contain an isopropenyl group at C-1 while compounds 1 and 2 are attached wi...
متن کاملTaxane Diterpenoids from Taxus baccata L. Growing in Iran
Background: There are eight Taxus species and two hybrids in the world and Taxus baccata L. (European yew) is the single representative in Iran. Until now, a large number of taxoids possessing different skeleton systems, as well as lignans, flavonoids, steroids and sugar derivatives have been isolated from various Taxus species. Taxoids are highly oxygenated diterpenes isolated from different...
متن کاملThree new diterpenoids from the fruit of Vitex agnus-castus.
Three new labdane-type diterpenoids, viteagnusins F, G, and H, were isolated from the hexane extract of fruit (chasteberry) of Vitex agnus-castus L. (Verbenaceae) along with seven known compounds including four labdane-type diterpenoids, one norlabdane-type diterpenoid, one aromadendrane-type sesquiterpenoid, and one flavonoid. The chemical structures of the three new labdane-type diterpenoids ...
متن کاملThree New Abietane-Type Diterpenoids from Callicarpa macrophylla Vahl.
Three new abietane-type diterpenoids, named callicapoic acid M3 (1), callicapoic acid M4 (2) and callicapoic acid M5 (3), were isolated from the Callicarpa macrophylla Vahl. Their structures were established by spectroscopic techniques (IR, UV, MS, 1D and 2D NMR). All the isolated three compounds were evaluated for inhibitory activity on NO production in LPS-activated RAW 264.7 macrophage cells...
متن کاملThree new diterpenoids from the leaves of Thuja orientalis.
Three new diterpenoids, 18-formyloxy-8 β-hydroxysandaracopimar-15-ene (1), 15(R)-N-butoxypinusolidic acid (2), and 15,16-dihydro-15,16-dimethoxylambertianic acid (3), along with twelve known compounds (4-15) were isolated from MeOH extracts of leaves of Thuja orientalis L. The structures of the three new compounds were elucidated on the basis of spectroscopic analyses, including extensive 2D-NM...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Chemical and Pharmaceutical Bulletin
سال: 1993
ISSN: 0009-2363,1347-5223
DOI: 10.1248/cpb.41.1672