Development of the First Generation of Disulfide-Based Subtype-Selective and Potent Covalent Pyruvate Dehydrogenase Kinase 1 (PDK1) Inhibitors
摘要:
Pyruvate dehydrogenase kinases (PDKs) are overexpressed in most cancer cells and are responsible for aberrant glucose metabolism. We previously described bis(4-morpholinyl thiocarbonyl)-disulfide (JX06, 16) as the first covalent inhibitor of PDK1. Here, on the basis of the scaffold of 16, we identify two novel types of disulfide-based PDK1 inhibitors. The most potent analogue, 3a, effectively inhibits PDK1 both at the molecular (k(mact)/K-i = 4.17 x 10(3) M-1 s(-1)) and the cellular level (down to 0.1 mu M). In contrast to 16, 3a is a potent and subtype-selective inhibitor of PDK1 with >40-fold selectivity for PDK2-4. 3a also significantly alters glucose metabolic pathways in A549 cells by decreasing ECAR and increasing ROS. Moreover, in the xenograft models, 3a shows significant antitumor activity with no negative effect to the mice weight. Collectively, these data demonstrate that 3a may be an excellent lead compound for the treatment of cancer as a first-generation subtype-selective and covalent PDK1 inhibitor.
NOVEL COMPOUNDS USEFUL AS CC CHEMOKINE RECEPTOR LIGANDS
申请人:KHAMRAI Uttam
公开号:US20100168080A1
公开(公告)日:2010-07-01
The present invention relates to novel morpholine, oxazapane and piperidine derivatives that act as ligands for CC chemokine receptors, such as CCR1. The invention also relates to methods of preparing the compounds, compositions containing the compounds, and to methods of treatment using the compounds.
Provided herein are P2X3 modulators and methods of utilizing P2X3 modulators in the treatment of diseases, disorders, or conditions. Also described herein are pharmaceutical compositions containing such compounds.
[EN] BETA-LACTAMASE INHIBITORS<br/>[FR] INHIBITEURS DE BÊTA-LACTAMASE
申请人:MERCK & CO INC
公开号:WO2009091856A2
公开(公告)日:2009-07-23
Substituted bicyclic beta-lactams of Formula I: (I), are ß-lactamase inhibitors, wherein a, X, R1 and R2 are defined herein. The compounds and pharmaceutically acceptable salts thereof are useful in the treatment of bacterial infections in combination with ß-lactam antibiotics. In particular, the compounds can be employed with a ß-lactam antibiotics (e.g., imipenem, piperacillin, or ceftazidime) against microorganisms resistant to ß-lactam antibiotics due to the presence of the ß-lactamases.
Substituted bicyclic beta-lactams of Formula I: (I), are β-lactamase inhibitors, wherein a, X, R
1
and R
2
are defined herein. The compounds and pharmaceutically acceptable salts thereof are useful in the treatment of bacterial infections in combination with β-lactam antibiotics. In particular, the compounds can be employed with a β-lactam antibiotics (e.g., imipenem, piperacillin, or ceftazidime) against microorganisms resistant to β-lactam antibiotics due to the presence of the β-lactamases.
HETEROARYL UREA DERIVATIVES USEFUL FOR INHIBITING CHK1
申请人:Diaz Frank
公开号:US20090143357A1
公开(公告)日:2009-06-04
Substituted urea compounds useful in the treatment of diseases and conditions related to DNA damage or lesions in DNA replication are disclosed. Methods of making the compounds, and their use as therapeutic agents, for example, in treating cancer and other diseases characterized by defects in DNA replication, chromosome segregation, or cell division, also are disclosed.