877399-49-0

Upstream product

• 877399-48-9 (R)-N,N-bis(tert-butoxycarbonyl)-3-(1-(2,6-dichloro-3-fluorophenyl)ethoxy)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-amine 
• 1448326-33-7 5-bromo-3-[1 (R)-(2,6-dichloro-3-fluoro-phenyl)-ethoxy]-pyridin-2-ylamine 
• 877399-47-8 (R)-5-bromo-N,N-bis-(tert-butoxycarbonyl)-3-(1-(2,6-dichloro-3-fluorophenyl)ethoxy)pyridine-2-amine 
• 877397-71-2 (R)-3-(1-(2,6-dichloro-3-fluorophenyl)ethyoxyl)-2-aminopyridine 
• 877397-70-1 (R)-3-(1-(2,6-dichloro-3-fluorophenyl)ethyoxyl)-2-nitropyridine 
• 15128-82-2 3-hydroxy-2-nitropyridine 
• 877397-65-4 (S)‐1‐(2,6-dichloro-3-fluorophenyl)ethanol 
• 73183-34-3 bis(pinacol)diborane 

Downstream Products

• 1421270-73-6 (R)-tert-butyl 2-(4-(6-amino-5-((R)-1-(2,6-dichloro-3-fluorophenyl)ethoxy)pyridin-3-yl)-1H-pyrazol-1-yl)-7-azaspiro[3.5]nonane-7-carboxylate 
• 877399-52-5 crizotinib 
• 1428476-86-1 4-(4-{6-amino-5-[(R)-1-(2,6-dichloro-3-fluoro-phenyl)-ethoxy]-pyridin-3-yl}-pyrazol-1-yl)-piperidine-1-carboxylic acid tert-butyl ester 

Relevant academic research and scientific papers

Discovery of 2-aminopyridines bearing a pyridone moiety as potent ALK inhibitors to overcome the crizotinib-resistant mutants

Despite the initial benefit demonstrated in clinical setting with ALK inhibitors, the challenging resistant mutants (F1174L, L1196M and G1202R) invariably developed. In this work, a series of 2-aminopyridine derivatives were designed and synthesized by C-5 position incorporation of a 2-pyridone moiety and bioisosteric replacement of the C-3 position linkers. Optimization of the 2-aminopyridine derivatives led to the identification of hit 18d displaying a significant growth inhibition against a variety of ALK-addicted cancer cells. Especially in the case of ALK-positive Karpas-299 cell, 18d exhibited excellent anti-proliferative potency with an IC50 value of about 40 nM. Moreover, 18d demonstrated encouraging activities against wild-type ALK (19 nM), ROS1 (2.3 nM) as well as challenging crizotinib-resistant ALKL1196M and ALKG1202R mutants with IC50 values of 45 nM and 22 nM, respectively. Additionally flow cytometric analysis indicates that 18d inhibited Karpas-299 cell viability via G1 phase arrest. Taken together, this work provided a promising ALK inhibitor to circumvent the clinical crizotinib-resistant mutants.

PYRIDINE SUBSTITUTED 2-AMINOPYRIDINE PROTEIN KINASE INHIBITOR CRYSTAL

The present invention discloses a crystal of citrate salt of pyridine-substituted 2-aminopyridine-based protein kinase inhibitors, in particular, to crystal of 5-((R)-1-(2,6-dichloro-3-fluorophenyl)ethoxy)-4′-methoxy-6′-((S)-2-methylpiperazin-1-yl)-3,3′-bipyridin-6-amine citrate salt, a method for preparation thereof, a crystalline composition and a pharmaceutical composition comprising the crystal, and further discloses the use of crystals of citrate salt of the compound of Formula I in protein kinase-related diseases. The crystals of citrate salt according to the present invention are superior to 5-((R)-1-(2,6-dichloro-3-fluorophenyl)ethoxy)-4′-methoxy-6′-((S)-2-methylpiperazin-1-yl)-3,3′-bipyridin-6-amine or other salts of 5-((R)-1-(2,6-dichloro-3-fluorophenyl)ethoxy)-4′-methoxy-6′-((S)-2-methylpiperazin-1-yl)-3,3′-bipyridin-6-amine in at least one aspect of bioavailability, hygroscopicity, stability, solubility, purity, ease of preparation, and the like.

PYRIDINE-SUBSTITUTED 2-AMINOPYRIDINE PROTEIN KINASE INHIBITORS

The present invention discloses pharmaceutically acceptable acid salts of pyridine-substituted 2-aminopyridine derivatives as protein kinase inhibitors, preparation methods, pharmaceutical compositions thereof, and use thereof for the treatment of diseases associated with protein kinase.

Combination of a C-Met antagonist and an aminoheteroaryl compound for the treatment of cancer

The invention also relates to a composition comprising an antibody antagonist to c-Met and an aminoheteroaryl compound, particularly as a medicament. The present invention also comprises a pharmaceutical composition comprising said anti c-Met antibody and said aminoheteroaryl compound as combination products for simultaneous, separate or sequential use. The invention relates to the use of the composition of the invention for the treatment of cancer in a mammal.

SUBSTITUTED 2-AMINOPYRIDINE PROTEIN KINASE INHIBITOR

Disclosed are a 2-aminopyridine derivative having protein kinase inhibition activity, a preparation method and a pharmaceutical composition thereof Also disclosed are uses of the compounds and the pharmaceutical compositions thereof in the preparation of drugs for treating and/or preventing protein kinase-related diseases.

PYRAZOLE-SUBSTITUTED AMINOHETEROARYL COMPOUNDS AS PROTEIN KINASE INHIBITORS

Compounds of formula (1) are provided, as well as methods for their synthesis and use. Preferred compounds are potent inhibitors of the c-Met protein kinase, and are useful in the treatment of abnormal cell growth disorders, such as cancers.