HEPATITIS C VIRUS INHIBITORS AND USES THEREOF IN PREPARATION OF DRUGS
申请人:CHANGZHOU YINSHENG PHARMACEUTICAL CO., LTD.
公开号:US20170253614A1
公开(公告)日:2017-09-07
A series of hepatitis C virus (HCV) inhibitors and compositions and applications thereof in the preparation of drugs for treating chronic HCV infection. Especially, a series of compounds that are used as NS5A inhibitors, and compositions and uses thereof in the preparations of drugs.
Regioselective addition of titanium enolates to 1-acylpyridinium salts. A convenient synthesis of 4-(2-oxoalkyl)pyridines
作者:Daniel L. Comins、Jack D. Brown
DOI:10.1016/s0040-4039(01)81368-x
日期:1984.1
Titanium enolates add to the 4-position of 1-phenoxycarbonylpyridinium salts to give 1,4-dihydropyridines; subsequent aromatization provides 4-(2-oxoalkyl)pyridines.
Optically Active a-Trifluoromethyl-B-Amino Acid Derivative Production Method
申请人:MICROBIAL CHEMISTRY RESEARCH FOUNDATION
公开号:US20170283411A1
公开(公告)日:2017-10-05
A method for producing an optically active α-trifluoromethyl-β-amino acid derivative, the method including: allowing a compound represented by the following General Formula (1) and a compound represented by the following General Formula (2) to react in the presence of a copper-optically active phosphine complex obtained from a copper compound and an optically active phosphine compound, to thereby obtain an optically active α-trifluoromethyl-β-amino acid derivative represented by the following General Formula (3):