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.
Synthesis, molecular docking and xanthine oxidase inhibitory activity of 5-aryl-1H-tetrazoles
作者:Itrat Fatima、Humaira Zafar、Khalid Mohammed Khan、Syed Muhammad Saad、Sumaira Javaid、Shahnaz Perveen、M. Iqbal Choudhary
DOI:10.1016/j.bioorg.2018.04.021
日期:2018.9
5-Aryl-1H-tetrazoles (1–24) were synthesized and screened for their xanthine oxidase (XO) inhibitory activity using allopurinol as standard inhibitor (IC50 = 2.0 ± 0.01 µM). Six compounds 3, 4, 5, 9, 21, and 24 exhibited significant to weak activities with IC50 values in the range of 7.4–174.2 µM. Active compounds were further subjected to kinetic and molecular docking studies to deduce their modes
[EN] AZETIDINES AS EP2 ANTAGONISTS<br/>[FR] AZÉTIDINES
申请人:PFIZER LTD
公开号:WO2009063365A1
公开(公告)日:2009-05-22
The present invention relates to a class of EP2 antagonistazetidinesof general formula (I), wherein the variables and substituents are as defined herein,and especially to EP2 antagonist compounds, to their use in medicine, particularly in the treatment of endometriosis and/or uterine fibroids (leiomyomata)and to intermediates usefulin their synthesis and to compositions containing them.
An efficient one-pot protocol for the conversion of benzaldehydes into tetrazole analogs
作者:Khalid Mohammed Khan、Itrat Fatima、Syed Muhammad Saad、Muhammad Taha、Wolfgang Voelter
DOI:10.1016/j.tetlet.2015.12.067
日期:2016.2
An efficient protocol has been developed for the one-pot synthesis of tetrazole derivatives in moderate to good yields starting from substituted benzaldehydes and proceeding via non-isolated oxime and nitrile intermediates. The structures of the desired products were confirmed by IR, and NMR spectroscopy as well as mass spectrometry. A plausible reaction mechanism is also discussed.
Catalytic Synthesis of 5‐Substituted Tetrazoles: Unexpected Reactions and Products
作者:Mohmmad Y. Wani、Manuela R. Silva、Balu Krishnakumar、Santosh Kumar、Abdullah S. Al‐Bogami、Faisal M. Aqlan、Abilio J. F. N. Sobral
DOI:10.1002/jhet.3542
日期:2019.5
Tetrazoles are incredibly useful organic molecules with a wide range of applications from medicinal chemistry as carboxylic acid isosteres to high energy density materials in space research. In an effort to develop an easy protocol for the synthesis of tetrazolesfromnitriles, we used nano‐Ag‐TiO2 as an efficient heterogeneous catalyst for the reaction of various nitriles and sodium azide to afford