5211-17-6Relevant academic research and scientific papers
13C NMR spectral assignment of five epimeric 3α- versus 3β-functionalized cholestane pairs
Ramos,Santos,Almeida,Motherwell,Costa
, p. 861 - 863 (2007/10/03)
13C NMR chemical shift assignments of five α- and β-epimeric pairs of cholestanes functionalized at C-3 are presented. Empirical increment estimations proved to be a valuable tool for the unequivocal structural elucidation when compared with th
Steroidal derived acids as inhibitors of human Cdc25A protein phosphatase
Peng, Hairuo,Xie, Wenge,Kim, Deog-Il,Zalkow, Leon H.,Powis, Garth,Otterness, Diane M.,Abraham, Robert T.
, p. 299 - 306 (2007/10/03)
A group of steroidal derived acids were synthesized and found to be human Cdc25A inhibitors. Their potency ranged from 1.1 to > 100 μM; the best ones compare very favorably with that of the novel cyano-containing 5,6-seco- cholesteryl acid 1 (IC50/s
Reduction et photoreduction de derives de l'acide carbonique influence de l'hexamethylphosphorotriamide
Dembele, Albert,Deshayes, Henri,Pete, Jean-Pierre
, p. 671 - 680 (2007/10/02)
Photoreduction and reduction of carbonic acid derivatives in HMPT have been compared.The highest yield of alkane was obtained from N,N-dimethylthiocarbamates either by the photochemical method or by reduction with a dissolved metal.Competitive reactions have been characterized: - during the photoreduction not only the alkane but products of a photo-Fries rearrangement and products of a homolytic cleavage were detected; - basic reactions can compete with the reduction of carbonic acid derivatives by sodium in HMPT.
ORGANOTELLURINIC ACID ANHYDRIDES AS SELECTIVE OXIDANTS IN ORGANIC SYNTHESIS
Barton, Derek H. R.,Finet, Jean-Pierre,Thomas, Martial
, p. 2319 - 2324 (2007/10/02)
Several aryltellurinic acid anhydrides have been compared for their oxidising properties in acetic acid.Very high yields of quinones and disulphides can be obtained under conditions where phenols are not oxidised.
