Results 151 to 160 of about 829 (182)

Structure of a novel phytoecdysteroid, vitexirone, and efficient isolation of phytoecdysteroids fromVitex fisherii

Journal of Chemical Ecology, 1990
A novel phytoecdysteroid, vitexirone, has been isolated from a MeOH extract of the root bark of the East African medicinal plantVitex fisherii by recycling high-performance liquid chromatography on a semipreparative scale. In addition, three known phytoecdysteroids, 20-hydroxyecdysone, ajugasterone C, and turkesterone, also were isolated. The structure
I, Kubo, Y, Asaka, M J, Stout, T, Nakatsu   +3 more
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phytoecdysteroids of Silene linicola

Chemistry of Natural Compounds, 2002
Seven ecdysteroids isolated from the aerial part of Silene linicola are identified using 1H and 13C NMR methods. Their yield from raw material was determined.
N. Z. Mamadalieva, L. N. Zibareva, Z. Saatov   +2 more
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Phytoecdysteroids from Serratula komarovii

Chemistry of Natural Compounds, 2004
Integristerone A and 2-deoxy-20-hydroxyecdysone were observed for the first time in the aerial and subterrean organs of the eastern Asian plant Serratula komarovii Iljin. α-Ecdysone was not found in the plants. The dynamics of phytoecdysteroid content (integristerone A, 20-hydroxyecdysone, and 2-deoxy-20- hydroxyecdysone) in the vegetative and ...
A. N. Vorob’eva, V. G. Rybin, E. V. Zarembo, E. V. Boltenkov, G. A. Verbitskii   +4 more
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Phytoecdysteroids from Stemmacantha uniflora

Chemistry of Natural Compounds, 2006
pr. 100-Letiya Vladivostoka, 159, fax (4232) 31 40 50, e-mail: sparrowaj@mail.ru; 2) Pacific Scientific Research Fisheries Center, 690950, Vladivostok, per. Shevchenko, 4, fax (4232) 40 08 05, e-mail: vgrybin@tinro.ru; 3) Botanical Garden Institute, Far Eastern Division, Russian Academy of Sciences, 690024, Vladivostok, ul. Makovskogo, 142.
A. N. Vorob’eva, V. G. Rybin, E. V. Zarembo, E. V. Boltenkov   +3 more
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Separation Methods for Phytoecdysteroids [PDF]

, 2001
Ecdysteroids are insect moulting hormones that regulate metamorphosis. Coincidentally, these compounds also show therapeutic benefits in both humans and animals. Some, particularly 20-hydroxyecdysone, are found at surprisingly high levels in certain plants, which have subsequently been subjected to intensive research as the possibility of their use in ...
Báthori Mária, Kalász Huba
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Phytoecdysteroids from the Silene genus

Chemistry of Natural Compounds, 2004
Research results on the isolation and identification of ecdysteroids from plants of the Silene L. genus were presented.
N. Z. Mamadalieva, L. N. Zibareva, R. Lafont, L. Dainan, Z. Saatov   +4 more
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ChemInform Abstract: A New Phytoecdysteroid

ChemInform, 2001
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
V. N. Odinokov, I. V. Galyautdinov, A. A. Fatykhov, L. M. Khalilov   +3 more
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Phytoecdysteroid constituents fromCyanotis arachnoidea

Journal of Asian Natural Products Research, 2003
Four phytoecdysteroids that have only 19 or 21 carbons, named 11alpha-hydroxyrubrosterone (1), dihydroxyrubrosterone (2), rubrosterone (3) and poststerone (4), were isolated from the whole plant of Cyanotis arachnoidea C.B. Clarke. Among them, 1 was a new compound. Their structures were elucidated by spectroscopic methods.
Cheng-Yu, Tan, Jin-Hui, Wang, Xian, Li
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Phytoecdysteroids of Caryophyllaceae Juss.

Contemporary Problems of Ecology, 2009
Distribution of phytoecdysteroids is analyzed in the family Caryophyllaceae, which includes a large number of ecdysteroid-containing species. Species of this family synthesize a wide variety of steroid compounds, insect molting and metamorphosis hormones, many of which are not found in other plants.
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Phytoecdysteroids Effects on Mammalians, Isolation and Analysis

Mini-Reviews in Medicinal Chemistry, 2002
Ecdysteroids are known insect moulting hormones, regulating the insects' metamorphosis. At the same time, ecdysteroids reveal beneficial effects on humans and animals alike. Medicinal plants have been subjected to an intensive research, addressing the presence of ecdysteroids.
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