Macrocyclic hepatitis C serine protease inhibitors
申请人:Miao Zhenwei
公开号:US20050153877A1
公开(公告)日:2005-07-14
The present invention relates to compounds of Formula I, II or Ill, or a pharmaceutically acceptable salt, ester, or prodrug, thereof:
wherein W is a substituted or unsubstituted heterocyclic ring system. The compounds 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.
Pd-Catalyzed decarboxylative alkynylation of alkynyl carboxylic acids with arylsulfonyl hydrazides<i>via</i>a desulfinative process
作者:Sheng Chang、Ying Liu、Shu Zhu Yin、Lin Lin Dong、Jian Feng Wang
DOI:10.1039/c8nj02964d
日期:——
In the presence of a Pd(II)/P-ligand catalytic system, decarboxylative alkynylation of alkynyl carboxylicacids and arylsulfonyl hydrazides by desulfinative coupling could provide aryl alkynes in satisfactory yields by either judiciously selecting palladium catalysts or modulating phosphine ligands under mild conditions. The reported coupling reactions are very practical as they do not require the
MACROCYCLIC HEPATITIS C SERINE PROTEASE INHIBITORS
申请人:Miao Zhenwei
公开号:US20090304629A1
公开(公告)日:2009-12-10
The present invention relates to compounds of Formula I, II or III, or a pharmaceutically acceptable salt, ester, or prodrug, thereof:
wherein W is a substituted or unsubstituted heterocyclic ring system. The compounds 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.
Emission from Regioisomeric Bis(phenylethynyl)benzenes during Pulse Radiolysis
作者:Shingo Samori、Sachiko Tojo、Mamoru Fujitsuka、Torben Ryhding、Aaron G. Fix、Brittany M. Armstrong、Michael M. Haley、Tetsuro Majima
DOI:10.1021/jo900494j
日期:2009.5.15
Emission from charge recombination between radical cations and anions of a series of regioisomeric 1,4-, 1,3-, and 1,2-bis(phenylethynyl)benzenes (bPEBs) substituted by various electron donor and/or acceptor groups was measured during pulse radiolysis in benzene (Bz). The formation of bPEB in the excited singlet state ((1)bPEB*) can be attributed to the charge recombination between bPEB(center dot+) and bPEB(center dot-), which are initially generated from the radiolytic reaction. This mechanism is reasonably explained by the relationship between the annihilation enthalpy change (-Delta H degrees) for the charge recombination of bPEB(center dot+) and bPEB(center dot-) and excitation energy of (1)bPEB*. Since the degree of the pi-conjugation in the S-1 state and HOMO-LUMO levels of bPEB change with the substitution pattern of phenylacetylene groups on the central benzene ring and the various kinds of donor and/or acceptor group, the fine-tuning of the emission color and intensity of bPEB can be easily carried out during pulse radiolysis in Bz. For donor-acceptor-substituted bPEB, it was found that the difference in the charge transfer conjugated pathways between donor and acceptor substituents (linear-, cross-, and "bent"-conjugated pathways) strongly influenced the HOMO-LUMO energy gap.
Yan, Jincan; Wang, Zhiyuan; Wang, Lei, Journal of Chemical Research, 2004, # 1, p. 71 - 73