Stereoselective Synthesis of <i>trans</i>-Stilbenes through Silver-Catalyzed Self-Coupling of <i>N</i>-Triftosylhydrazones: An Experimental and Theoretical Study
作者:Qingmin Song、Yue Zhao、Shaopeng Liu、Yong Wu、Zhaohong Liu
DOI:10.1021/acs.orglett.3c01040
日期:2023.5.19
efficiency with excellent stereoselectivity, broad substrate scope, and good functional group tolerance. A plausible mechanism involving nucleophilic attack of in situ generated sulfonium ylides on silver carbene was proposed on the basis of experimental results and DFT calculations, which further indicates that π–π stacking interactions play a dominant role in stereoselectivity control.
The present invention discloses compounds of formula I or pharmaceutically acceptable salts, esters, or prodrugs thereof:
which inhibit serine protease activity, particularly the activity of hepatitis C virus (HCV) NS3-NS4A protease. Consequently, the compounds of the present invention interfere with the life cycle of the hepatitis C virus and are also useful as antiviral agents. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject suffering from HCV infection. The invention also relates to methods of treating an HCV infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention.
US7728148B2
申请人:——
公开号:US7728148B2
公开(公告)日:2010-06-01
[EN] ACYCLIC OXIMYL HEPATITIS C PROTEASE INHIBITORS<br/>[FR] INHIBITEURS OXIMYLE ACYCLIQUES DE PROTÉASE DE L'HÉPATITE C
申请人:ENANTA PHARM INC
公开号:WO2007146695A1
公开(公告)日:2007-12-21
[EN] The present invention discloses compounds of formula I or pharmaceutically acceptable salts, esters, or prodrugs thereof which inhibit serine protease activity, particularly the activity of hepatitis C virus (HCV) NS3-NS4A protease. Consequently, the compounds of the present invention interfere with the life cycle of the hepatitis C virus and are also useful as antiviral agents. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject suffering from HCV infection. The invention also relates to methods of treating an HCV infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention. [FR] La présente invention concerne des composés répondant à la formule I ou des sels, des esters, ou des promédicaments pharmaceutiquement acceptables de ces composés, qui inhibent l'activité de la sérine protéase, en particulier l'activité de la protéase NS3-NS4A du virus de l'hépatite C (VHC). En conséquence, les composés de la présente invention interfèrent avec le cycle de vie du virus de l'hépatite C et ils se révèlent également utiles en tant qu'agents antiviraux. La présente invention concerne en outre des compositions pharmaceutiques contenant les composés susmentionnés, destinés à être administrés à un sujet souffrant d'une infection par le VHC. L'invention concerne également des procédés de traitement d'un sujet atteint d'une infection par le VHC par l'administration d'une composition pharmaceutique contenant les composés de la présente invention.
Rhodium(II)-Catalyzed Cyclization of Bis(N-tosylhydrazone)s: An Efficient Approach towards Polycyclic Aromatic Compounds
作者:Ying Xia、Zhenxing Liu、Qing Xiao、Peiyuan Qu、Rui Ge、Yan Zhang、Jianbo Wang
DOI:10.1002/anie.201201374
日期:2012.6.4
Ahead of the PAC: Polycyclicaromaticcompounds (PACs) can be easily accessed by the combination of Suzuki–Miyaura cross‐coupling and a [Rh2(OAc)4]‐catalyzed carbene reaction using easily available bis(N‐tosylhydrazone)s as intermediates (see scheme; Ts=4‐toluenesulfonyl).