2-Substituted and 4-substituted aryl nitrone compounds
申请人:Kelly G. Michael
公开号:US20050182060A1
公开(公告)日:2005-08-18
The present invention provides aryl nitrones, compositions comprising the same and methods of their use for the treatment or prevention of oxidative, ischemic, ischemia/reperfusion-related and chemokine mediated conditions.
Asymmetric 1,3-dipolar cycloaddition of optically active trifluoromethylated α,β-unsaturated aryl sulfones with nitrones: the use of o-dialkylaminoethyl chiral auxiliaries
Optically active trifluoromethylated α,β-unsaturated
aryl sulfones 8aâc, which have a chiral
N,N-dialkylaminoethyl group on the
ortho position, were synthesized from
(S)-1-phenylethylamine 2 and ethyl trifluoroacetate.
Asymmetric 1,3-dipolar cycloaddition of sulfones 8aâc with some
selected nitrones 9aâc gave the corresponding isoxazolidines
10aâc, 11aâc and 12â15 regio- (> 98%) and
diastereo-selectively (36â56% de) in 58â80% yields. The
absolute configurations of the cycloadducts were assigned on the basis
of X-ray crystallographic analysis of the adduct 10a and by the
1H NMR spectra. The obtained facial selectivity was
rationalized by comparison of four possible stable conformers of
compound 8a based on AM1 calculations.
SUBSTITUTED PYRIDOPYRAZINES AS NOVEL SYK INHIBITORS
申请人:Su Wei-Guo
公开号:US20140121200A1
公开(公告)日:2014-05-01
Provided are pyridopyrazine compounds of formula (1), pharmaceutical compositions thereof and methods of use therefore, wherein R
1
, R
2
, R
3
, R
4
and m are as defined in the specification.
[EN] SUBSTITUTED PYRIDOPYRAZINES AS NOVEL SYK INHIBITORS<br/>[FR] PYRIDOPYRAZINES SUBSTITUÉES EN TANT QUE NOUVEAUX INHIBITEURS DE SYK
申请人:HUTCHISON MEDIPHARMA LTD
公开号:WO2012167423A1
公开(公告)日:2012-12-13
Provided are certain pyridopyrazine compounds, pharmaceutical compositions thereof and methods of use therefor.
提供了某些吡啶吡嗪化合物,其药物组成物以及使用方法。
[EN] PYRROLOPYRIMIDINE COMPOUNDS AND USES THEREOF<br/>[FR] COMPOSÉS DE PYRROLOPYRIMIDINE ET LEURS UTILISATIONS
申请人:HUTCHISON MEDIPHARMA LTD
公开号:WO2012022265A1
公开(公告)日:2012-02-23
Disclosed are pyrrolopyrimidine compounds of formula (I) capable of inhibiting JAK kinase, wherein R1, R2 and m are defined as in the description. The pharmaceutical compositions containing said pyrrolopyrimidine compounds and uses of said pyrrolopyrimidine compounds in the treatment of disorders or diseases such as inflammatory diseases and cancers are also disclosed.