Abstract: The present disclosure relates to the technical field of pyridine acetamide derivatives, and specifically relates to a pyridine acetamide derivative as a CDK inhibitor, a preparation method therefor and a use thereof. The pyridine acetamide derivative exhibits excellent CDK9/CDK7 kinase inhibitory activity, and can be used for preparing medications for treating cancers; and the cancers are particularly blood cancers, including acute myeloid leukemia, multiple myeloma, chronic lymphocytic leukemia, follicular lymphoma and the like, and solid tumors, including breast cancer, prostate cancer, ovarian cancer, hepatocellular carcinoma, pancreatic cancer, kidney cancer, stomach cancer, colorectal cancer, lung cancer and the like.

Abstract: The present disclosure belongs to the technical field of polycyclic amide derivatives, in particular to a polycyclic amide derivative as a CDK9 inhibitor, a preparation method therefor and use thereof. The polycyclic amide derivative exhibits an excellent CDK9 kinase inhibitory activity, and can be used for preparing a medicine for treating cancers, wherein the cancers are especially hematological cancers, including acute myeloid leukemia, multiple myeloma, chronic lymphocytic leukemia, follicular lymphoma and solid tumors including breast cancer, prostate cancer, ovarian cancer, hepatocellular cancer, pancreatic cancer, renal cancer, gastric cancer, colorectal cancer, lung cancer, and the like.

Abstract: An antidepressant steroid compound and a preparation method and an application thereof; the structure of said compound is shown in formula (I), and the definition of each substituent is as described in the description and claims. Compound of the present invention may be used in the prevention, treatment, therapy or alleviation of a plurality of diseases and conditions such as depression.

Abstract: An antidepressant steroid compound and a preparation method and an application thereof; the structure of said compound is shown in formula (I), and the definition of each substituent is as described in the description and claims. Compound of the present invention may be used in the prevention, treatment, therapy or alleviation of a plurality of diseases and conditions such as depression.

Abstract: The present invention provides a compound comprising a 5-membered heterocycle fused with a pyridazinone, wherein the compound is used as an FGFR kinase inhibitor, and a manufacturing method and application thereof. The invention specifically provides a compound as represented by formula (I). Various radicals are as defined in the specification. The compound provided by the invention effectively inhibits an activity of an FGFR kinase, and can be used to manufacture a pharmaceutical product for treating a disease related to the activity of the FGFR kinase.