Electronic effects of aryl-substituted bis(oxazoline) ligands on the outcome of asymmetric copper-catalysed C–H insertion and aromatic addition reactions
摘要:
The effect of the modification of bis(oxazoline) ligands on the outcome of copper-catalysed C-H insertion and aromatic addition reactions is described. In general, these reactions display minimum sensitivity in terms of enantiocontrol to variation of the electronic properties of the aryl moiety of the ligand however, some influence is observed for C-H insertions employing naphthyl-substituted bis(oxazolines) and for aromatic addition reactions of biphenyl diazo ketone substrates. The synthesis of the modified bis(oxazolines), which include four novel structures, is also described. (C) 2013 Elsevier Ltd. All rights reserved.
The invention relates to new piperidino-dihydrothienopyrimidines of formula 1, as well as pharmacologically acceptable salts thereof,
wherein X is SO or SO
2
, but preferably SO, and wherein R
1
, R
2
, R
3
and R
4
may have the meanings given in claim
1
, as well as pharmaceutical compositions which contain these compounds.
These new piperidino-dihydrothienopyrimidines are suitable for the treatment of respiratory or gastrointestinal complaints or diseases, inflammatory diseases of the joints, skin or eyes, diseases of the peripheral or central nervous system or cancers.
sterically encumbered bis(oxazoline) ligand backbone, thus offering a de novo technology for accessing enantioenriched sp3–sp3 linkages via sp3 C–N functionalization. Our protocol is distinguished by its broad scope and generality across a wide number of counterparts, even in the context of late-stage functionalization. In addition, an enantioselective deaminative remote hydroalkylation reaction of unactivated
Dihydrothienopyrimidines for the Treatment of Inflammatory Diseases
申请人:Pouzet Pascale
公开号:US20080096882A1
公开(公告)日:2008-04-24
The invention relates to new dihydrothienopyrimidine of formula 1, as well as pharmacologically acceptable salts, diastereomers, enantiomers, racemates, hydrates or solvates thereof,
wherein X is SO or SO
2
, but preferably SO, and wherein R
1
, R
2
and R
3
have the meanings given in the description,
and which are suitable for the treatment of respiratory or gastrointestinal complaints or diseases, inflammatory diseases of the joints, skin or eyes, diseases of the peripheral or central nervous system or cancers, as well as pharmaceutical compositions which contain these compounds.