Abstract: A P2Y12 receptor antagonist containing a guanidyl, and a preparation method and the use thereof. In particular, the present disclosure provides a pyridazinone-guanidine compound that is a compound of structural formula (I), or a stereoisomer of the above-mentioned compound, a pro-drug thereof, a pharmaceutically acceptable salt thereof or a pharmaceutically acceptable solvate thereof. Such a compound has multiple pharmacological activities, especially has an inhibitory effect on platelet aggregation, and can be used for preparing an anti-platelet aggregation pharmaceutical composition.

Abstract: The present invention relates to compounds (I) capable of inhibiting the Mst1/2 protein kinase activity, a preparation method therefor, a pharmaceutical composition comprising the compounds, and uses of the compounds and the pharmaceutical composition comprising the compounds in the preparation of drugs for prompting repair and regeneration of tissues and organs, prompting stem cell proliferation and somatic cell dedifferentiation, immunosuppression, and preventing or treating diseases related to nervous disorders and local ischemia.

Abstract: The present invention relates to compounds (I) capable of inhibiting the Mst1/2 protein kinase activity, a preparation method therefor, a pharmaceutical composition comprising the compounds, and uses of the compounds and the pharmaceutical composition comprising the compounds in the preparation of drugs for prompting repair and regeneration of tissues and organs, prompting stem cell proliferation and somatic cell dedifferentiation, immunosuppression, and preventing or treating diseases related to nervous disorders and local ischemia.

Abstract: The present invention provides a Bruton's tyrosine kinase inhibitor, which is a compound represented by formula (I) or a pharmaceutically acceptable salt, solvate, ester, acid, metabolite or prodrug thereof. The present invention also provides a pharmaceutical composition comprising the compound. The present invention also provides a method and use of using the Bruton's tyrosine kinase inhibitor to inhibit the tyrosine kinase activity or treat diseases, disorders or symptoms benefiting from the inhibition of the Bruton's tyrosine kinase (Btk) activity.

Abstract: The invention discloses a novel intermediate for preparing tapentadol and analogs thereof, wherein the structural formula is shown as formula I or II, and the groups are defined as the specification. The invention further discloses a method for preparing the novel intermediate and use of the intermediate for preparing tapentadol and analogs thereof. The invention can remarkably improve the product yield and quality of tapentadol, reduce the production cost, and simplify the production procedure. The preparation process is environment friendly, thus more suitable for the requirements of industrial production.

Abstract: The invention discloses a novel intermediate for preparing tapentadol and analogues thereof, wherein the structural formula is shown as formula I or II, and the groups are defined as the specification. The invention further discloses a method for preparing the novel intermediate and use of the intermediate for preparing tapentadol and analogues thereof. The invention can remarkably improve the product yield and quality of tapentadol, reduce the production cost, and simplify the production procedure. The preparation process is environment friendly, thus more suitable for the requirements of industrial production.

Abstract: The invention relates to a retinoid derivative and pharmaceutical composition and use thereof. The compound of the invention is capable of preventing or treating hematological tumors, such as acute leukemia, chronic leukemia, multiple myeloma and lymphoma, solid tumors, such as liver cancer, rectal cancer, mammary cancer and esophagus cancer, and skin disorders, such as psoriasis and acne.

Abstract: The invention relates to a retinoid derivative and pharmaceutical composition and use thereof. The compound of the invention is capable of preventing or treating hematological tumours, such as acute leukemia, chronic leukemia, multiple myeloma and lymphoma, solid tumours, such as liver cancer, rectal cancer, mammary cancer and esophagus cancer, and skin disorders, such as psoriasis and acne.