Abstract: A polysubstituted benzene compound, preparation method thereof, and method of using the same. The compound has a formula I or I?, where X represents carbon, sulfur, or oxygen; R1 represents a C1-16 alkyl, C2-16 alkenyl, or C2-10 alkynyl; R2 represents hydrogen, halogen, C1-16 alkyl, C2-16 alkenyl, or C2-10 alkynyl; or an aryl group or a substituted aryl group by 1-5 groups selected from halogen, C1-26 alkyl, C1-3 halogenated alkyl, O—C1-3 alkyl, hydroxyl, amino, nitro, cyano group, aldehyde group and ester group; or a heteroaryl group or a substituted heteroaryl group by 1-5 groups selected from halogen, C1-26 alkyl, C1-3 halogenated alkyl, O—C1-3 alkyl, hydroxyl, amino, nitro, cyano group, aldehyde group and ester group; the heteroaryl group is a 3-10-membered heteroaryl group including N, S, O, or a combination thereof.

Abstract: A polysubstituted benzene compound, preparation method thereof, and method of using the same. The compound has a formula I or I?, where X represents carbon, sulfur, or oxygen; R1 represents a C1-16 alkyl, C2-16 alkenyl, or C2-10 alkynyl; R2 represents hydrogen, halogen, C1-16 alkyl, C2-16 alkenyl, or C2-10 alkynyl; or an aryl group or a substituted aryl group by 1-5 groups selected from halogen, C1-26 alkyl, C1-3 halogenated alkyl, O—C1-3 alkyl, hydroxyl, amino, nitro, cyano group, aldehyde group and ester group; or a heteroaryl group or a substituted heteroaryl group by 1-5 groups selected from halogen, C1-26 alkyl, C1-3 halogenated alkyl, O—C1-3 alkyl, hydroxyl, amino, nitro, cyano group, aldehyde group and ester group; the heteroaryl group is a 3-10-membered heteroaryl group including N, S, O, or a combination thereof.

Abstract: The present invention provides use of taurine in prevention and/or treatment of diseases induced by viruses of genus coronavirus and/or genus rotavirus, for example, porcine epidemic diarrhea, porcine transmissible gastroenteritis, rotavirus diarrhea and the like.

Abstract: The present invention provides a pharmaceutical composition for prevention and/or treatment of diseases induced by viruses of genus coronavirus and/or genus rotavirus. The pharmaceutical composition includes the following components by weight percent: 0.5-100% of taurine, 0-85% of a vitamin complex, and 0-15% of a flavoring agent.

Abstract: The present invention provides use of taurine in prevention and/or treatment of diseases induced by viruses of genus coronavirus and/or genus rotavirus, for example, porcine epidemic diarrhea, porcine transmissible gastroenteritis, rotavirus diarrhea and the like.

Abstract: A process for the preparation of a 1,1-cyclopropane(nitrile)(electron-acceptor), the process comprising treating an olefin with an acceptor/acceptor-substituted ?-cyanodiazo reagent in the presence of a catalytic amount of a metal porphyrin catalyst.

Abstract: A process for the cyclopropanation of olefins with a metal porphyrin catalyst and an acceptor/acceptor substituted diazo reagent.

Abstract: Asymmetric cyclopropanation of olefins with diazosulfones.

Abstract: A process for the cyclopropanation of olefins with a metal porphyrin catalyst and an acceptor/acceptor substituted diazo reagent.