Abstract: 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.

Abstract: The present application relates to a substituted amino six-membered saturated heteroalicycle represented by formula I as a long-acting DPP-IV inhibitor, a method for preparing the same, a pharmaceutical composition comprising the same, and a use of the same in treating and/or preventing diseases and disorders benefitting from DPP-IV inhibition.

Abstract: 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.

Abstract: 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.

Abstract: The present application relates to a substituted amino six-membered saturated heteroalicycle represented by formula I as a long-acting DPP-IV inhibitor, a method for preparing the same, a pharmaceutical composition comprising the same, and a use of the same in treating and/or preventing diseases and disorders benefitting from DPP-IV inhibition.

Abstract: 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.

Abstract: The present invention discloses substituted 2-aminopyridine derivatives as protein kinase inhibitors; specifically, the invention relates to 2-aminopyridine derivatives having protein kinase inhibitory properties, their manufacture, pharmaceutical compositions containing them, and use of the compounds and the pharmaceutical compositions thereof for the treatment of diseases associated with protein kinase.

Abstract: The invention relates to a novel class of 2,4-diamino-6,7-dihydro-5H-pyrrolo[2,3]pyrimidine derivatives as a FAK and/or Pyk2 inhibitor, to a process for their preparation, and to a composition thereof, as well as to use of the compounds for the inhibiting FAK and/or Pyk2 and method for the treatment of a FAK and/or Pyk2 mediated disorder or disease.

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

Abstract: The invention relates to a novel class of 2,4-diamino-6,7-dihydro-5H-pyrrolo[2,3]pyrimidine derivatives as a FAK and/or Pyk2 inhibitor, to a process for their preparation, and to a composition thereof, as well as to use of the compounds for the inhibiting FAK and/or Pyk2 and method for the treatment of a FAK and/or Pyk2 mediated disorder or disease.