Results 151 to 160 of about 8,241 (215)

A critical role for the dopamine D-like receptor Dop1R2 at the onset of metamorphosis [PDF]

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General introduction [PDF]

, 2006
Ghekiere, A.
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Stimulation of polydnavirus replication by 20-hydroxyecdysone

Experientia, 1992
During oviposition the endoparasitic wasp Campoletis sonorensis, introduces a polydnavirus into parasitized insects where viral gene expression is required for endoparasite survival. The polydnavirus is integrated into wasp chromosomal DNA and replicates only in the ovary.
B A, Webb, M D, Summers
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Jones Oxidation of 20-Hydroxyecdysone (Crustecdysone)

Australian Journal of Chemistry, 1993
Oxidation of 20-hydroxyecdysone ( crustecdysone ) (4) with Jones reagent gives a 2:1 mixture of posterone (1) and its 3-keto derivative (2). A possible source of (2) is suggested.
QR Petersen, RC Cambie, GB Russell
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Regioselective synthesis of 20-hydroxyecdysone glycosides

Tetrahedron, 1994
Abstract Four β-D-glucopyranosides of 20-hydroxyecdysone (1) were prepared.
Jaroslav Píš, Jiří Hykl, Miloš Buděšinský, Juraj Harmatha   +3 more
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Synthesis of 20-hydroxyecdysone 25-acetate

Chemistry of Natural Compounds, 1997
A scheme has been developed for the selective conjugation of 20-hydroxyecdysone (20E) at the 25- position, with the synthesis of 20E 25-acetate as an example. The proposed scheme also permits the selective, synthesis of 20E 22-esters from both lower and higher fatty acids, which opens up prospects for the creation from them of drugs with a prolonged ...
N. K. Politova, V. V. Punegov, V. V. Volodin, A. V. Ignatov   +3 more
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Stereochemistry of Hydride Reduction of 20‐Hydroxyecdysone Derivatives.

ChemInform, 2005
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
V. N. Odinokov, R. G. Savchenko, R. V. Shafikov, S. R. Afon'kina, L. M. Khalilov, V. V. Kachala, A. S. Shashkov   +6 more
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Preparation of 20-hydroxyecdysone-22-benzoate

Chemistry of Natural Compounds, 2004
Tashkent, fax (99871) 120 64 75; 2) Universite Rene Descartes, Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, France; 3) Universite Pierre et Marie Curie Endocrinologie Moleculaire et Evolution, France. Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 401-403, September-October, 2004. Original article submitted June 28,
N. Z. Mamadalieva, N. Sh. Ramazanov, J.-P. Girault, R. Lafont, Z. Saatov   +4 more
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Synthesis of 20-hydroxyecdysone 6-chloronicotinates

Chemistry of Natural Compounds, 2009
New esters 2-5 that contain 6-chloropyridine groups characteristic of the alkaloid epibatidine were prepared by acylation of 20-hydroxyecdysone (1) by 6-chloronicotinoylchloride.
I. D. Bobaev, N. V. Kovganko, Yu. G. Chernov, Z. R. Utaeva, S. N. Sokolov, Zh. N. Kashkan, N. Sh. Ramazanov   +6 more
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Synthesis of 20-Hydroxyecdysone Carboxylate Esters

Chemistry of Natural Compounds, 2017
Acylation of 20-hydroxy-2,3-O-isopropylideneecdysone (2) by carboxylic-acid anhydrides produced ecdysteroid derivatives containing various organic acids (5–12).
I. D. Bobaev, I. V. Zavarzin, A. N. Blinnikov, Kh. M. Bobakulov, N. Sh. Ramazanov, N. D. Abdullaev   +5 more
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