New Chiral Synthons for Efficient Introduction of Bispropionates via Stereospecific Oxonia−Cope Rearrangements
摘要:
Compounds 1 and 2 are novel synthons for bispropionate synthesis, undergoing stereospecific Lewis acid-catalyzed transfer of the bispropionate unit with a variety of aldehydes, including alpha-chiral aldehydes. Thus 1 leads to the E-alkene bispropionate 3 with anti-stereochemistry, whereas diastereomer 2 gives the Z-alkene product 4, under mild conditions and with complete stereospecificity. The efficacy of this methodology is demonstrated in a short synthesis of invictolide beginning with 2 and (R)-2-methylpentanal.
Aromatic Sulfide Inhibitors of Histone Deacetylase Based on Arylsulfinyl-2,4-hexadienoic Acid Hydroxyamides
作者:Charles M. Marson、Pascal Savy、Alphonso S. Rioja、Thevaki Mahadevan、Catherine Mikol、Arthi Veerupillai、Eva Nsubuga、Angela Chahwan、Simon P. Joel
DOI:10.1021/jm051010j
日期:2006.1.1
The synthesis of a novel series of potent inhibitors of histone deacetylases is described, based on arylsulfinyl-2,4-hexadienoic acid hydroxyamides and their derivatives. In vitro IC(50) values down to 40 nM were obtained, and several compounds showed inhibition of CEM (human leukemic) cell viability with IC(50) of approximately 1.5 microM, comparable to or better than that of suberoylanilide hydroxamic
Preparation of Mikanecic Ester and its precursor, 1,3-butadiene-2-carboxylic ester
作者:L. K. Sydnes、L. Skattebøl、Christopher B. Chapleo、David G. Leppard、Karen L. Svanholt、André S. Dreiding
DOI:10.1002/hlca.19750580721
日期:1975.11.5
Eine thermische (a) und eine reduktive (b) Methode zur Herstellung von Mikanez-Estern wird beschrieben. Bei der ersten gelang der Nachweis des monomeren Vorläufers, 1,3-Butadien-2-carboxylester.
The present invention provides histone deacetylase inhibitors of general formula (I), process for the preparation of such compounds and uses of the compounds in medicine.