An Environmentally Sustainable Mechanochemical Route to Hydroxamic Acid Derivatives
作者:Rita Mocci、Lidia De Luca、Francesco Delogu、Andrea Porcheddu
DOI:10.1002/adsc.201600350
日期:2016.10.6
An operationally simple, and cost efficient conversion of carboxylic acids into hydroxamicacid derivatives via a high‐energy mechanochemical activation is presented. This ball milling methodology was applied to a wide variety of carboxylic acids dramatically improving purification issues associated with this class of molecules, which still remain one of the main bottlenecks of classical methodologies
This invention relates to compounds for the inhibition of histone deacetylase. More particularly, the invention provides for compounds of formula compounds of the Formula (I)
and N-oxides, hydrates, solvates, pharmaceutically acceptable salts, prodrugs and complexes thereof, and racemic and scalemic mixtures, diastereomers and enantiomers thereof, wherein groups L, M, X and Y are as defined herein.
Condition-dependent transformations between hydroximic acids and thioaceticacid were achieved. Using NH4HCO3 in the ethanol solvent, efficient N–O bond cleavage of hydroxamic acids occurred to afford primary amides with high functional group compatibility. The reaction was switched to O-acylation when NEt3 and H2O were used as the base and solvent, respectively. These facile transformations could