Abstract: A derivative of homoserine lactone represented by formula I, and a preparation method and use thereof. The compound has a bacterial quorum-sensing regulatory effect, and can be used for prevention and/or treatment of a disease caused by a bacterial infection.

Abstract: A pegylated artesunate derivative, a pharmaceutical composition and uses thereof, the pegylated artesunate derivative is represented by the general formula (I): The pegylated artesunate derivative has activity comparable to that of artesunate, increased water solubility and stability, and an extended half-life in vivo.

Abstract: Disclosed are pyridazine derivatives represented by Formula I or pharmaceutically acceptable salts or hydrates thereof, pharmaceutical compositions comprising the compounds, methods of treating and/or preventing diseases or disorders associated with viral infections in patients using the compounds, and the use of the compounds in preparing the medicaments for treating and/or preventing diseases or disorders associated with viral infections. The compounds represented by Formula I have antiviral activity, especially anti-microRNA viral activity. Symbols in the compounds represented are described in the specification.

Abstract: The present invention relates to (1S,2S,3S,4R)-3-[(1S)-1-acetylamino-2-ethyl-butyl]-4-guanidino-2-hydroxy-cyclopentyl-1-carboxylic acid hydrates compounds, preparing methods thereof, pharmaceutical compositions containing said compounds and preparing methods thereof, and the clinical uses of said compounds as neuramidinase inhibitors for anti-influenza.

Abstract: The invention relates to a tizoxanide carbamate compound of Formula I and a pharmaceutically acceptable salt, a hydrate or a solvate thereof, and their pharmaceutical use.

Abstract: The present invention relates to a compound of formula (I), a stereomeride, pharmaceutically acceptable salt, a solvate or an N-oxide thereof, a medicine composition comprising the compound, a method for preparing the compound, and a usage of the compound in treating diseases related to Hsp70. The diseases are preferably selected from tumors, neurodegenerative diseases, and allogeneic transplantation rejection and infection.

Abstract: Provided are piperazinyl pyrimidine derivatives of formula I having CCR4 antagonism, and the preparation method, pharmaceutical composition and use thereof in the preparation of a medicament. The medicament is useful for the treatment and prevention of CCR4-related diseases.

Abstract: The present invention provides a compound of a general formula I, a stereomeride, pharmaceutically acceptable salt or a solvate thereof, a preparation method thereof, and usages in preparing medicines for preventing and/or treating diseases or symptoms caused by drug-resistant tumors or drug-resistant bacteria and in preparing medicines for preventing and/or treating diseases or symptoms related to tumors, neurodegenerative diseases, allogeneic transplantation rejection, and infection. Preferably, the diseases or symptoms related to tumors, neurodegenerative diseases, allogeneic transplantation rejection, and infection are diseases or symptoms caused by a heat shock protein 70 (Hsp70). The compound in the present invention is used for overcoming a difficult problem of drug resistance of tumors, improves the effect of tumor treatment, and provides a new medical strategy for clinical tumor treatment.

Abstract: The invention provides a compound of Formula I, an isomer, a pharmaceutically acceptable salt, or a solvate thereof, and use thereof in manufacture of a medicament for preventing and/or treating a drug-resistant tumor or disease or disorder caused by a drug-resistant bacterium, or use thereof in manufacture of a medicament for preventing and/or treating a tumor, a neurodegenerative disease, an allogeneic graft rejection, or an infection-associated disease or disorder; preferably, the tumor, neurodegenerative disease, allogeneic graft rejection, or infection-associated disease or disorder is a disease or disorder caused by Heat shock protein 70 (Hsp70). The compounds of the invention, which are a class of Hsp70 inhibitors having a novel structure and a high activity, solve the problem concerning drug resistance of tumors, enhance the effect of treating tumors, and provide a new medical strategy for treatment of tumors in clinic.

Abstract: The present invention relates to site-specific PEGylated linear salmon calcitonin analogs, or pharmaceutically acceptable salts thereof, process for their preparation, pharmaceutical compositions comprising them, and their use for the preparation of a medicament for the treatment or prevention of diseases associated with bone metabolism, e.g., osteoporosis.

Abstract: The present invention provides a joint product comprising synephrine and topiramate, in which the synephrine or salt thereof is administered in form of rapid-release preparation, preferably rapid-release pellet, having daily dose of 2 mg to 25 mg, preferably 5 mg to 20 mg; the topiramate is administered in form of sustained-release or controlled-release preparation, preferably sustained-release pellet, having daily dose of 20 mg to 100 mg, preferably 23 mg to 92 mg. The composition is used for treatment of obesity or other diseases associated with obesity.

Abstract: A pegylated artesunate derivative, a pharmaceutical composition and uses thereof, the pegylated artesunate derivative is represented by the general formula (I): The pegylated artesunate derivative has activity comparable to that of artesunate, increased water solubility and stability, and an extended half-life in vivo.

Abstract: Disclosed is as a substituted thiazolamine derivative represented by Formula I or a pharmaceutically acceptable salt thereof or a hydrate thereof (the definitions of each group in the formula are as presented in the description), and the application thereof in the prevention and/or treatment of viral diseases induced by picornavirus. Also disclosed is a pharmaceutical composition containing the compound.

Abstract: The present invention provides a combination product, which comprises immediate release pellet of phentermine and sustained-release pellet of topiramate, wherein the pellet of topiramate includes: a) a blank pellet core; b) an active drug layer that contains topiramate and is free of binding agent, the layer being located on surface of the blank pellet core; c) a sustained-release coating layer containing ethyl cellulose and PVP K30, the sustained-release coating layer being located on external of the active drug layer. The present invention further discloses a method for preparing the combination product.

Abstract: The present invention relates to a thiazine amide derivative and a pharmaceutical use thereof, and particularly to a compound of formula I (in the formula, variables are as described in the specification), a pharmaceutically acceptable salt, solvate or hydrate thereof. The present invention further relates to a method for preparing the compound, a pharmaceutical composition containing the compound, and a method or use thereof for prevention or treatment of neurodegenerative diseases.

Abstract: The present invention pertains to field of pharmaceutical chemicals, and relates to thiazole inner salt compounds, preparation methods and uses thereof. Specifically, the present invention relates to a compound of Formula I, hydrates or pharmaceutically acceptable salts thereof. The compound of Formula I of the present invention is a potent cross-linking protein cleavage agent, has a stable structure, good physical and chemical properties, and good pharmacological activities, and is suitable for large scale production to obtain samples with stable, controllable and reliable quality, thereby being suitable for pharmaceutical development.

Abstract: Meta-diarylaniline or meta-diarylpyridinamine compounds, methods for preparing the same and uses thereof in manufacture of a medicament. The compounds according to the present application have strong inhibitory activity (at nM level) against wild-type and various drug-resistant HIV viral strains, exhibit good druggability, and can be easily synthesized.

Abstract: Provided are a compound of formula I which can be used as a drug against small RNA virus infections, and optical isomers, pharmaceutically acceptable salts, solvates or hydrates thereof. Also provided are the preparation method of the compound, the method for using the compound for treating bacterial infections and the use of the compound in the preparation of a drug for preventing and/or treating viral diseases caused by small RNA viruses.

Abstract: The present invention relates to (1S,2S,3S,4R)-3-[(1S)-1-acetylamino-2-ethyl-butyl]-4-guanidino-2-hydroxy-cyclopentyl-1-carboxylic acid hydrates compounds, preparing methods thereof, pharmaceutical compositions containing said compounds and preparing methods thereof, and the clinical uses of said compounds as neuramidinase inhibitors for anti-influenza.

Abstract: Disclosed are PEG-modified Exendin-4 analogs and uses thereof. In particular, disclosed are PEG-modified Exendin-4 analogs as shown in formula (I), i.e., PEG-M-X-(Ex-4), or pharmaceutically acceptable salts thereof, as well as Exendin-4 analogs as shown in formula (II), i.e., [Aap]Exendin-4, wherein the symbols are as defined in the specification. Further disclosed are methods for preparing PEG-modified Exendin-4 analogs, uses of PEG-modified Exendin-4 analogs, compositions comprising the same, as well as use of the Exendin-4 analogs in the preparation of the PEG-modified Exendin-4 analogs. In the PEG-modified Exendin-4 analogs, modification by polyethylene glycol occurs in a site-directed manner in the peptide chains of the Exendin-4 analogs. The PEG-modified Exendin-4 analogs can be used to prevent and/or treat diseases and/or symptoms related to decreased activity of GLP-1 receptors, such as type II diabetes.