Trifluoromethyl ketone analogs as selective cPLA2 inhibitors
申请人:Bristol-Myers Squibb Company
公开号:US06350892B1
公开(公告)日:2002-02-26
Selective inhibitors of the cPLA2 enzymes are provided which are of use in controlling a wide variety of inflammatory diseases. The inhibitors of the present invention have the general formula
where (R′), p, D, Y, Z, Ra, Rb and A are as defined in the specification.
Chromatography Membranes for the Purification of Chiral Compounds
申请人:Komkova Elena N.
公开号:US20120064601A1
公开(公告)日:2012-03-15
Described herein are composite materials and methods of using them for the separation or purification of enantiomers. In certain embodiments, the composite material comprises a support member, comprising a plurality of pores extending through the support member; and a macroporous cross-linked gel, comprising a plurality of macropores, and a plurality of pendant chiral moieties. In certain embodiments, the composite materials may be used in the separation or purification of a chiral small molecule.
US5629424A
申请人:——
公开号:US5629424A
公开(公告)日:1997-05-13
Micellar extraction of amino acids using chiral hydrophobic selectors. A comparison with chromatographic procedures
In this work we study the micellar extraction of two amino acids, namely tryptophan and tyrosine, using N-n-dodecyl-L-proline (1) and trans-N-n-dodecyl-4-hydroxy-L-proline (2) as hydrophobic chiral selectors with copper(II) ions. In the first part of our study the solubilities of the two selectors 1 and 2 and their ability to form micelles are examined. Quantum mechanical calculations are performed to access their Gibbs solvation energies in order to explain their different behaviours. Micellar extraction is then studied using both selectors solubilised in non-ionic micelles. The results obtained are discussed and comparisons made with the data reported in the literature for similar selectors deposited onto an octadecyl silylated stationary phase in chromatographic procedures or solubilised in a real biphasic system in solvent extraction experiments.