Palladium-Catalyzed Carbonylation of (Hetero)Aryl, Alkenyl and Allyl Halides by Means of N-Hydroxysuccinimidyl Formate as CO Surrogate
摘要:
An efficient Pd-catalyzed carbonylation protocol is described for the coupling of a large panel of aryl, heteroaryl, benzyl, vinyl and allyl halides 2 with the unusual N-hydroxysuccinimidyl (NHS) formate 1 as a CO surrogate to afford the corresponding valuable NHS esters 3. High conversion to the coupling products was achieved with up to 98% yield by means of Pd(OAc)(2)/Xantphos catalyst system.
Synthesis and c-Met Kinase Inhibition of 3,5-Disubstituted and 3,5,7-Trisubstituted Quinolines: Identification of 3-(4-Acetylpiperazin-1-yl)-5-(3-nitrobenzylamino)-7- (trifluoromethyl)quinoline as a Novel Anticancer Agent
摘要:
By use of an improved synthetic strategy, a series of 3,5-disubstituted and 3,5,7-trisubstituted quinolines were readily prepared. 3,5,7-Trisubstituted quinolines 21a-c, 211, and 27a-c were identified as the most potent c-Met inhibitors with IC50 of less than 1.0 nM. Compound 21b showed the most promising overall PK profile and has high potency and extraordinary selectivity to c-Met against c-Met family member Ron and 12 other tyrosine kinases. It produced constitutive inhibition of c-Met phosphorylation in c-Met dependent cell lines. At doses of 100 mg/kg, compound 21b showed statistically significant tumor growth inhibition (68-69%) in both NIH-3T3-TPR-Met and U-87 MG human gliobastoma xenograft models. These results clearly indicated that compound 21b is a potent and highly selective c-Met inhibitor. Its favorable in vitro and in vivo profiles warrant further investigation.
The present invention relates to Map4K1 inhibitors of formula (I) to pharmaceutical compositions and combinations comprising the compounds according to the invention, and to the prophylactic and therapeutic use of the inventive compounds, respectively to the use of said compounds for manufacturing pharmaceutical compositions for the treatment or prophylaxis of diseases, in particular for neoplastic disorders, repectively cancer or conditions with dysregulated immune responses or other disorders associated with aberrant MAP4K1 signaling, as a sole agent or in combination with other active ingredients. The present invention further relates to the use, respectively to the use of said compounds for manufacturing pharmaceutical compositions for the treatment or prophylaxis of protein inhibitors in benign hyperplasias, atherosclerotic disorders, sepsis, autoimmune disorders, vascular disorders, viral infections, in neurodegenerative disorders, in inflammatory disorders, in atherosclerotic disorders and in male fertility control.
The synthesis and evaluation of simplified analogs of marine sponge-derived alkaloid 3-(phenethylamino)demethyl(oxy)aaptamine were performed to develop novel anti-mycobacterial substances. Ring truncation of the tricyclic benzo[de][1,6]-naphthyridine skeleton effectively weakened the cytotoxicity of the naturalproduct, and the resulting AC-ring analog exhibited good anti-mycobacterial activity. A
Discovery of a novel series of quinoxalines as inhibitors of c-Met kinase
作者:John Porter、Simon Lumb、Fabien Lecomte、James Reuberson、Anne Foley、Mark Calmiano、Kelly le Riche、Helen Edwards、Jean Delgado、Richard J. Franklin、Jose M. Gascon-Simorte、Alison Maloney、Christoph Meier、Mark Batchelor
DOI:10.1016/j.bmcl.2008.11.062
日期:2009.1
A series of quinoxaline inhibitors of c-Met kinase is described. The postulated binding mode was confirmed by an X-ray crystal structure and optimisation of the series was performed on the basis of this structure. Future directions for development of the series are discussed together with the identification of a novel quinoline scaffold.
Targeting NOX2 with Bivalent Small-Molecule p47phox–p22phox Inhibitors
作者:Jie Zang、Felix Peters、Yves Cambet、Eugenia Cifuentes-Pagano、Munira Mohamed Shishay Hissabu、Christopher M. Dustin、Lars Henrik Svensson、Martin Mariboe Olesen、Mathias Feldt Lomholt Poulsen、Stig Jacobsen、Pernille Sønderby Tuelung、Dilip Narayanan、Annette Eva Langkilde、Michael Gajhede、Patrick J. Pagano、Vincent Jaquet、Frederik Vilhardt、Anders Bach