Results 161 to 170 of about 829 (182)

Thin‐Layer Chromatography of Phytoecdysteroids

Journal of Liquid Chromatography & Related Technologies, 2003
Abstract Planar chromatography of ecdysteroids is reviewed. Separation of various ecdysteroids is detailed using both straight‐phase and reversed‐phase thin‐layer chromatography (RP‐TLC). The generally used special techniques, such as two‐dimensional TLC (2D‐TLC), forced‐flow TLC (FF‐TLC), displacement mode of development, etc., are also specified. The
M. Báthori, H. Kalász, G. Janicsák, Z. Pongrácz, J. Vámos   +4 more
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Phytoecdysteroids in seeds of Lloydia serotina (Liliaceae)

Biochemical Systematics and Ecology, 2001
Seeds of a number of species in the Liliaceae (sensu Brummitt, 1992) were examined for the presence of ecdysteroid agonist and antagonist activities. No species were antagonistic to 20-hydroxyecdysone action on the ecdysteroid-responsive Drosophila melanogaster B(II) cell line and only one extract, that of Lloydia serotina, was agonistic. This activity
L, Dinan, P, Whiting, T, Savchenko
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Phytoecdysteroids from the rhizomes of Brainea insignis

Phytochemistry, 2010
Phytoecdysteroid glucosides, brainesterosides A-E, were isolated from the rhizomes of Brainea insignis along with three known phytoecdysteroids, ponasteroside A, ponasterone A, and 20-hydroxyecdysone. Their structures were elucidated by spectroscopic and chemical means. A possible biogenetic pathway is postulated for these compounds.
Ping, Wu, Haihui, Xie, Wenqin, Tao, Shenyu, Miao, Xiaoyi, Wei   +4 more
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Phytoecdysteroids ofSilene nutans. III. Nusilsterone

Chemistry of Natural Compounds, 1985
A new ecdysteroid — nusilsterone — has been insolated from the whole plantSilene nutans L. It has been shown that it is 1β,2β,3β,14α,20R,22R,24ζ,25-octahydroxy-5-β-cholest-7-en-6-one.
U. Baltaev, Ya. V. Rashkes, N. K. Abubakirov   +2 more
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Phytoecdysteroids

2021
Ugiloy Yusufovna Yusupova, Nurmurod Sheralievich Ramazonov, Vladimir Nikolaevich Syrov, Shomansur Shosaidovich Sagdullaev   +3 more
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Phytoecdysteroids

2022
Ugiloy Yusufovna Yusupova, Nurmurod Sheralievich Ramazonov, Vladimir Nikolaevich Syrov, Shomansur Shosaidovich Sagdullaev   +3 more
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Phytoecdysteroids of Rhaponticum carthamoides III. Rhapisterone C

Chemistry of Natural Compounds, 1991
A new ecdysteroid (rhapisterone B) has been isolated from the seeds ofRhaponticum cathamoides (Willd.) Iljin. (familyCompositae). It has been shown that it is 2β, 3β, 11α, 14α, 20R, 24ξ-hexahydroxy-5β-cholest-7-en-6-one.
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[Phytoecdysteroids of Rhaponticum uniflorum root].

Yao xue xue bao = Acta pharmaceutica Sinica, 1992
Three phytoecdysteroids I, II and III were isolated from the root of Rhaponticum uniflorum (L.) DC. and their structures were elucidated by chemical and spectroscopic methods (UV, IR, EI-MS, FAB-MS, 1HNMR, 13CNMR, 1H-1H COSY, 1H-1H NOESY, 1H-13CCOSY and CD).
D A, Guo, Z C, Lou, C Y, Gao, L, Qiao, J R, Peng   +4 more
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Dietary Phytoecdysteroids

2019
Laurence Dinan, Nilufar Z. Mamadalieva, René Lafont   +2 more
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New Phytoecdysteroid from Silene popovii

Chemistry of Natural Compounds, 2022
U. Yu. Yusupova, Kh. M. Bobakulov, J. P. Girault, D. A. Usmanov, N. Sh. Ramazonov, N. D. Abdullaev   +5 more
openaire   +1 more source