Abstract: Provided in the present invention are a compound having the effects of preventing and treating diseases related to IDH mutation, and a preparation method and use thereof.

Abstract: The invention provides an alginate oligosaccharide and its derivatives with the degree of polymerization ranging from 2 to 22. The alginate oligosaccharide is composed of ?-D-mannuronic acid linked by 1,4 glycosidic bonds. The derivatives with the reduced terminal in position 1 of carboxyl radical can be prepared by oxidative degradation. The invention also provides a process for preparing the alginate oligosaccharide and its derivatives, which includes the procedure that an alginate solution is reacted for 2 to 6 h in an autoclave at pH 2˜6 and the temperature of 100˜120° C., and adjusted pH to 7 after the reaction is stopped, after which the resultant oligosaccharide is oxidized in the presence of an oxidant to obtain an oxidative product. The alginate oligosaccharide and its derivatives of the invention can be used in the manufacture of a medicament for the prophylaxis and treatment of AD and diabetes.

Abstract: Provided are a substituted quinolone derivative as shown by formula (I), or a pharmaceutically acceptable salt and a prodrug molecule thereof, and a pharmaceutical composition thereof, as well as the use of same in preparing drugs for the prevention and treatment of a tumor. The quinolone derivative, salt, prodrug molecule, and pharmaceutical composition thereof can be used as a protein kinase inhibitor, which is effective in inhibiting the activity of AXL protein kinase, and is capable of inhibiting the proliferation, migration and invasion of various tumor cells; and can be used in the preparation of anti-tumor drugs, especially drugs for treating hyperproliferative diseases such as a tumor in human beings and other mammals.

Abstract: The present invention discloses a pyrido-azacyclic compound represented by formula I, an isomer thereof, a pharmaceutically acceptable salt or a pharmaceutically acceptable solvate thereof, a preparation process thereof and a composition comprising the compound, and a use thereof as a multi-target protein kinase inhibitor in the preparation of a medicament for the treatment of diseases that are associated with protein kinase, especially c-Met, such as cancer and the like. The compound represented by formula I has potent inhibitory activity on tumor cells with overexpression of c-Met kinase, can effectively target c-Met-mediated signaling pathway, and can be used in the treatment of diseases such as cancer and the like that is caused by the overexpression of c-Met kinase.

Abstract: Disclosed are a 2-aminopyrimidine compound and pharmaceutical composition and use thereof. The structure of the 2-aminopyrimidine compound is as represented by formula I, in the formula, R1, R2, R3, R4, R5, X, Y, Z, W, (i) being as defined in the specification and the claims. Such compounds effectively inhibit the growth of a variety of tumor cells and have inhibitory effects on EGFR and IGF1R protease, and can be used for preparing antineoplastic drugs and overcome the tolerance induced by the existing drugs such as gefitinib, erlotinib and the like. The compound has selectivity for tumors, in particular the wild-type non-small cell lung cancer and have good pharmacokinetic characteristics.

Abstract: This invention provides a class of five-member-heterocycle fused pyridine compounds as shown below in Formula (X), pharmaceutically acceptable salts or pharmaceutically acceptable solvates thereof, a method of producing the same, pharmaceutical compositions containing the compound, and use of the compounds in preparing medicament for preventing and/or treating diseases and tumors associated with abnormal protein tyrosine kinase.

Abstract: Provided are certain PI3K inhibitors, pharmaceutical compositions thereof, and methods of use therefor.

Abstract: Disclosed are a 2-aminopyrimidine compound and pharmaceutical composition and use thereof. The structure of the 2-aminopyrimidine compound is as represented by formula I, in the formula, R1, R2, R3, R4, R5, X, Y, Z, W, (i) being as defined in the specification and the claims. Such compounds effectively inhibit the growth of a variety of tumor cells and have inhibitory effects on EGFR and IGF1R protease, and can be used for preparing antineoplastic drugs and overcome the tolerance induced by the existing drugs such as gefitinib, erlotinib and the like. The compound has selectivity for tumors, in particular the wild-type non-small cell lung cancer and have good pharmacokinetic characteristics.

Abstract: The present invention provides an indazole compound as a FGFR kinase inhibitor, preparation and use thereof. Specifically, the present invention provides a compound represented by formula (I), wherein the definitions of each group are described in the specification. The compound of the present invention has good FGFR kinase-inhibiting activity, and can be used in preparing a series of medicines for treating FGFR kinase activity related diseases.

Abstract: The invention provides an alginate oligosaccharide and its derivatives with the degree of polymerization ranging from 2 to 22. The alginate oligosaccharide is composed of ?-D-mannuronic acid linked by 1,4 glycosidic bonds. The derivatives with the reduced terminal in position 1 of carboxyl radical can be prepared by oxidative degradation. The invention also provides a process for preparing the alginate oligosaccharide and its derivatives, which includes the procedure that an alginate solution is reacted for 2 to 6 h in an autoclave at pH 2˜6 and the temperature of 100-120° C., and adjusted pH to 7 after the reaction is stopped, after which the resultant oligosaccharide is oxidized in the presence of an oxidant to obtain an oxidative product. The alginate oligosaccharide and its derivatives of the invention can be used in the manufacture of a medicament for the prophylaxis and treatment of AD and diabetes.

Abstract: Disclosed herein are protein kinase inhibitors, more particularly novel pyrimidine derivatives and pharmaceutical compositions thereof, and method of use thereof.

Abstract: The invention provides an alginate oligosaccharide and its derivatives with the degree of polymerization ranging from 2 to 22. The alginate oligosaccharide is composed of ?-D-mannuronic acid linked by 1,4 glycosidic bonds. The derivatives with the reduced terminal in position 1 of carboxyl radical can be prepared by oxidative degradation. The invention also provides a process for preparing the alginate oligosaccharide and its derivatives, which includes the procedure that an alginate solution is reacted for 2 to 6 h in an autoclave at pH 2˜6 and the temperature of 100˜120° C., and adjusted pH to 7 after the reaction is stopped, after which the resultant oligosaccharide is oxidized in the presence of an oxidant to obtain an oxidative product. The alginate oligosaccharide and its derivatives of the invention can be used in the manufacture of a medicament for the prophylaxis and treatment of AD and diabetes.

Abstract: Provided are certain ALK inhibitors, pharmaceutical compositions thereof, and methods of use therefor.

Abstract: This invention provides a class of five-member-heterocycle fused pyridine compounds as shown below in Formula (X), pharmaceutically acceptable salts or pharmaceutically acceptable solvates thereof, a method of producing the same, pharmaceutical compositions containing the compound, and use of the compounds in preparing medicament for preventing and/or treating diseases and tumours associated with abnormal protein tyrosine kinase.

Abstract: Disclosed herein are protein kinase inhibitors, more particularly novel pyrimidine derivatives and pharmaceutical compositions thereof, and method of use thereof.

Abstract: Disclosed herein are protein kinase inhibitors, more particularly novel pyrimidine derivatives and pharmaceutical compositions thereof, and method of use thereof.

Abstract: The invention provides an alginate oligosaccharide and its derivatives with the degree of polymerization ranging from 2 to 22. The alginate oligosaccharide is composed of ?-D-mannuronic acid linked by 1,4 glycosidic bonds. The derivatives with the reduced terminal in position 1 of carboxyl radical can be prepared by oxidative degradation. The invention also provides a process for preparing the alginate oligosaccharide and its derivatives, which includes the procedure that an alginate solution is reacted for 2 to 6 h in an autoclave at pH 2˜6 and the temperature of 100˜120° C., and adjusted pH to 7 after the reaction is stopped, after which the resultant oligosaccharide is oxidized in the presence of an oxidant to obtain an oxidative product. The alginate oligosaccharide and its derivatives of the invention can be used in the manufacture of a medicament for the prophylaxis and treatment of AD and diabetes.

Abstract: A compound of formula (I) or (II) and use of the compound in the preparation of drugs for treating cancer are disclosed. The study shows that the compounds can inhibit the growth of many kinds of tumor cells, can be used for targeting epidermal growth factor receptor (EGFR), and particularly can inhibit tumor cells with single or multiple mutations of EGFR (T790M). Therefore, the compound can be used as EGFR inhibitor to treat cancer and has a relatively large application value.

Abstract: The present invention provides an alginate oligosaccharide and its derivatives with the degree of polymerization ranging from 2 to 22. The alginate oligosaccharide is composed of ?-D-mannuronic acid linked by 1,4 glycosidic bonds. The derivatives with the reduced terminal in position 1 of carboxyl radical can be prepared by oxidative degradation. The present invention also provides a process for preparing the alginate oligosaccharide and its derivatives, which includes the procedures that an alginate solution is reacted for 2 to 6 h in an autoclave at pH 2-6 and the temperature of 100-120° C., and pH is adjusted to 7 after the reaction is stopped, after which the resultant oligosaccharide is oxidized in the presence of an oxidant to obtain an oxidative degradation product. The alginate oligosaccharide and its derivatives of the invention can be used in the manufacture of a medicament for the prophylaxis and treatment of AD and diabetes.

Abstract: Disclosed herein are protein kinase inhibitors, more particularly novel pyrimidine derivatives and pharmaceutical compositions thereof, and method of use thereof.