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 arene connected polyamine macrocyclic derivatives represented by general formula I, pharmaceutically acceptable salts or hydrates thereof which have anti-HIV activities, in which the definitions of substituents are as defined in the description; to preparation methods of the compounds of formula I; to pharmaceutical compositions containing the compounds of formula I or their pharmaceutically acceptable salts or hydrates; to the use of the compounds of formula I or their pharmaceutically acceptable salts or hydrates for the preparation of a medicament for the treatment and prevention of HIV-associated diseases.

Abstract: Aromatic butan-2-ol compounds, preparation methods for making the compounds, and uses of the compounds are provided. Specifically, the compound of Formula I, or an optical isomer, racemate, diastereomer, pharmaceutically acceptable salt, or solvate thereof, is provided, where each of the substituents is defined. In addition, a pharmaceutical composition containing the compound, and the use of the compound in manufacture of a medicament for the treatment and/or prophylaxis of a disease or disorder caused by tubercle bacillus infection, is provided.

Abstract: The present invention relates to substituted pyridazinylamine derivatives of the formula I or pharmaceutically acceptable salts or hydrates thereof, wherein the substituents are defined as in the description, their preparation process, pharmaceutical compositions comprising them, and uses of the said compounds as picorna virus inhibitors for prevention and/or treatment of diseases caused by picorna viruses.

Abstract: Disclosed are dihydropyrimidine compounds and preparation methods, pharmaceutical compositions and uses thereof. Specifically, the compounds described herein in general formula (I), or their isomers, pharmaceutically acceptable salts or hydrates are provided, wherein each variable has the meaning as defined in the description. Also provided are a process for preparing the compounds of the general formula (I), the use of the compounds, an isomer thereof, a pharmaceutically acceptable salt thereof or a hydrate thereof as a medicament, in particular as a medicament for the treatment and/or prevention of Hepatitis B.

Abstract: The present invention relates to a sustained-release composition containing 2,3,4,5-tetrahydro-2,8-dimethyl-5-[2-(6-methyl-3-pyridyl)ethyl]-1H-pyrido[4,3-b]indole or a pharmaceutically acceptable salt thereof as an active ingredient, preparation thereof and the compound. The composition is suitable for oral administration by one time per day, and achieves the peak plasma concentration at 1.0 to 3 hours after oral administration. The composition is suitable for manufacturing a medicament for treatment of cognitive dysfunction syndrome, Alzheimer's disease, Parkinson's disease, Huntington's disease, or senile dementia.

Abstract: The present invention relates to substituted pyridazinylamine derivatives of the formula I or pharmaceutically acceptable salts or hydrates thereof, wherein the substituents are defined as in the description, their preparation process, pharmaceutical compositions comprising them, and uses of the said compounds as picorna virus inhibitors for prevention and/or treatment of diseases caused by picorna 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: The present invention relates to substituted pyridazinylamine derivatives of the formula I or pharmaceutically acceptable salts or hydrates thereof, wherein the substituents are defined as in the description, their preparation process, pharmaceutical compositions comprising them, and uses of the said compounds as picorna virus inhibitors for prevention and/or treatment of diseases caused by picorna viruses.

Abstract: The present invention relates to a compound of formula I, racemates, optically active isomers, or pharmaceutically acceptable salts or solvates thereof, and a pharmaceutical composition comprising the compound, the various radicals in the formula I are the same as defined in the claims.

Abstract: The present invention relates to arene connected polyamine macrocyclic derivatives represented by general formula I, pharmaceutically acceptable salts or hydrates thereof which have anti-HIV activities, in which the definitions of substituents are as defined in the description; to preparation methods of the compounds of formula I; to pharmaceutical compositions containing the compounds of formula I or their pharmaceutically acceptable salts or hydrates; to the use of the compounds of formula I or their pharmaceutically acceptable salts or hydrates for the preparation of a medicament for the treatment and prevention of HIV-associated diseases.

Abstract: The present invention relates to a compound of formula I, racemates, optically active isomers, or pharmaceutically acceptable salts or solvates thereof, and a pharmaceutical composition comprising the compound, the various radicals in the formula I are the same as defined in the claims. The present invention also relates to a process for preparing the compound of formula I and use of said compound in the preparation of a medicament for the treatment of hyperglycemia, dyslipidemia, type II diabetes mellitus including associated diabetic dyslipidemia.

Abstract: The present invention relates to a compound of formula I, racemates, optically active isomers, or pharmaceutically acceptable salts or solvates thereof, and a pharmaceutical composition comprising the compound, the various radicals in the formula I are the same as defined in the claims.

Abstract: The present invention relates to substituted pyridazinylamine derivatives of the formula I or pharmaceutically acceptable salts or hydrates thereof, wherein the substituents are defined as in the description, their preparation process, pharmaceutical compositions comprising them, and uses of the said compounds as picorna virus inhibitors for prevention and/or treatment of diseases caused by picorna viruses.

Abstract: The present invention relates to a compound of formula I, racemates, optically active isomers, or pharmaceutically acceptable salts or solvates thereof, and a pharmaceutical composition comprising the compound, the various radicals in the formula I are the same as defined in the claims.