CXC chemokinereceptors 1 (CXCR1) and 2 (CXCR2) have been demonstrated to have critical roles in cancer metastasis. Because they share high homology sequences, it is still unclear how to design selective CXCR1 or CXCR2 antagonists. Based on a pharmacophore model we built, compound 2 bearing a 1,5-dihydro-4H-imidazol-4-one scaffold was identified as a selective CXCR2 antagonist with a low CXCR1 antagonism
The invention relates to a compound of formula (I)
wherein R
1
to R
4
are defined as in the description and in the claims. The compound of formula (I) can be used as a medicament. In particular, the compound may be used as a preferential agonist of Cannabinoid Receptor 2.
[EN] NOVEL PYRAZINE DERIVATIVES<br/>[FR] NOUVEAUX DÉRIVÉS DE PYRAZINE
申请人:HOFFMANN LA ROCHE
公开号:WO2013060751A1
公开(公告)日:2013-05-02
The invention relates to a compound of formula (I), wherein R1 to R4 are defined as in the description and in the claims. The compound of formula (I) can be used as a medicament.
Synthesis of Optically Active Amino Acid Derivatives via Dynamic Kinetic Resolution
作者:Yoon Kyung Choi、Yunwoong Kim、Kiwon Han、Jaiwook Park、Mahn-Joo Kim
DOI:10.1021/jo902034x
日期:2009.12.18
The complete conversion of racemic aminoacid amides to optically active aminoacid derivatives was accomplished via lipase/palladium-catalyzed dynamickineticresolution (DKR). In the DKR, a lipase catalyzes the selective acylation of l-substrate in the presence of acyl donor while unreacted d-substrate is isomerized by a Pd nanocatalyst to l-substrate. The DKR reactions provided good yields (80−98%)
Sulfonamide compounds for the treatment of neurodegenerative disorders
申请人:Brodney A. Michael
公开号:US20050222254A1
公开(公告)日:2005-10-06
The present invention relates to compounds of the Formula I
wherein R
1
, R
2
, R
3
, m, and n are as defined. Compounds of the Formula I have activity inhibiting production of Aβ-peptide. The invention also relates to pharmaceutical compositions and methods for treating disorders and diseases, for example, neurodegenerative and/or neurological disorders, e.g., Alzheimer's disease, in a mammal comprising compounds of the Formula I.