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 a compound of formula (I)
wherein A, R
1
-R
6
are as defined in the description and in the claims. The compound of formula (I) can be used as a medicament.
The invention relates to a compound of formula (I)
wherein A, R1-R6 are as defined in the description and in the claims. The compound of formula (I) can be used as a medicament.
[EN] PROLINE DERIVATIVES AS CATHEPSIN INHIBITORS<br/>[FR] DÉRIVÉS DE PROLINE COMME INHIBITEURS DE LA CATHEPSINE
申请人:HOFFMANN LA ROCHE
公开号:WO2010121918A1
公开(公告)日:2010-10-28
The invention relates to a compound of formula (I) wherein A, R1-R6 are as defined in the description and in the claims. The compound of formula (I) can be used as a medicament.