Regio and stereoselective oxidations of unsaturated steroidal compounds with H2O2 mediated by CH3ReO3
作者:Francesco P. Ballistreri、Rosa Chillemi、Sebastiano Sciuto、Gaetano A. Tomaselli、Rosa M. Toscano
DOI:10.1016/j.steroids.2006.02.003
日期:2006.7
ROESY and NOEDS measurements. Seven new oxygenated compounds were also obtained. Under the experimental conditions adopted in this work, only the diene steroids, i.e. 7-dehydrocholesteryl acetate and ergosteryl acetate, undergo hydrolytic oxirane ring opening, whereas Vitamin D(2) and D(3) acetates, containing the triene system and cholesteryl acetate yield only epoxides. The selectivity seems to be controlled
Synthesis, Evaluation and Docking studies of Cholecalciferol Derivative
作者:Ayaz Dar、Asim Rizvi、Imrana Naseem
DOI:10.13005/ojc/300322
日期:2014.9.26
Improved synthesis of 3b-acetoxy-9, 10-seco-19, 8(8)-spiro-5(10), 6-cholestadiene has been reported after reacting cholecalciferol acetate with dimethylbutadiene by incorporating BF3·OEt2, SnCl4, ZnBr2, p-TsOH in toluene under Diels-Alder condition to get better yields. Agarose gel electrophoresis showed the potential in vitro DNA damaging nature while as the comet assay depicted the genotoxic nature by mobilizing the tail of the comet in lymphocytes. The molecular docking depicted the intercalation of steroid derivative with minor groove of the DNA molecule and in this configuration the phosphodiester bond of DNA stabilizes the acetoxy group. The bioactivity score and PASS software analysis confirmed the potential physicochemical features of the compound to act as active drug.
作者:R. I. Yakhimovich、A. N. Esaulenko、L. M. Yusupova、A. V. Turov、V. K. Bauman、M. Yu. Valinietse
DOI:10.1007/bf00777693
日期:1991.9
Reischl, Wolfgang, Liebigs Annalen der Chemie, 1993, # 6, p. 587 - 594
作者:Reischl, Wolfgang
DOI:——
日期:——
Selenium dioxide oxidation of vitamin D3 acetate to a dimer of 1-oxotransvitamin D3 acetate
作者:Glenn F. Reynolds、Robert A. Reamer、Gary H. Rasmusson
DOI:10.1016/0039-128x(85)90036-4
日期:1985.10
The treatment of vitamin D3 acetate with selenium dioxide and t-butyl hydroperoxide leads to a mixture from which a Diels-Alder dimer of 1-oxotransvitamin D3 acetate was isolated.