Chiral dinuclear phthalazine bridged bisoxazoline ligands: synthesis and application in enantioselective Cu-catalyzed conjugate addition of ZnEt2 to enones
摘要:
A new class of chiral dinuclear ligands with phthalazine bridged bisoxazoline scaffold was designed and prepared in convenient synthetic routes. H-1 NMR analysis showed that this class of ligands could coordinate with two metal ions, either same or different. These ligands afforded good to excellent yields and enantioselectivities in Cu-catalyzed conjugate addition of ZnEt2 to enones. (C) 2011 Elsevier Ltd. All rights reserved.
Chiral dinuclear phthalazine bridged bisoxazoline ligands: synthesis and application in enantioselective Cu-catalyzed conjugate addition of ZnEt2 to enones
摘要:
A new class of chiral dinuclear ligands with phthalazine bridged bisoxazoline scaffold was designed and prepared in convenient synthetic routes. H-1 NMR analysis showed that this class of ligands could coordinate with two metal ions, either same or different. These ligands afforded good to excellent yields and enantioselectivities in Cu-catalyzed conjugate addition of ZnEt2 to enones. (C) 2011 Elsevier Ltd. All rights reserved.
Described herein are compounds that are useful as protein kinase inhibitors having the formula:
wherein Z
1
and Z
2
are each independently nitrogen or CH and Ring A, T
m
R
1
, QR
2
, U
n
R
3
, and Sp are as described in the specification. The compounds are especially useful as inhibitors of ERK2 and for treating diseases in mammals that are alleviated by a protein kinase inhibitor, particularly diseases such as cancer, inflammatory disorders, restenosis, diabetes, and cardiovascular disease.
Disclosed are substituted imidazo[1,2-a]pyridines, imidazo[1,2-a]pyrazines, imidazo[1,2-c]pyrimidines and imidazo[1,2-d]triazines compounds of the formula: (1.0) Also disclosed are methods for treating JNK1 and ERK mediated diseases using the compounds of formula 1.0.