Synthesis and evaluation of pyrazolone compounds as SARS-coronavirus 3C-like protease inhibitors
摘要:
A series of pyrazolone compounds as possible SARS-CoV 3CL protease inhibitors were designed, synthesized, and evaluated by in vitro protease assay using fluorogenic substrate peptide in which several showed potent inhibition against the 3CL protease. Interestingly, one of the inhibitors was also active against 3C protease from coxsackievirus B3. These inhibitors could be potentially developed into anti-coronaviral and anti-picornaviral agents. (C) 2010 Elsevier Ltd. All rights reserved.
A medicament having inhibitory activity against plasminogen activator inhibitor-1, which comprises as an active ingredient a compound represented by the following general formula (I) or a salt thereof:
wherein R
1
and R
2
represents an aromatic group which may be substituted, W represents a group selected from the following connecting group W-1:
(wherein a bond at the left end binds to the carbon atom and a bond at the right end binds to the nitrogen atom, X represents sulfur atom or NH, Y represents oxygen atom or sulfur atom,
R
3
represents a hydrocarbon group, hydroxy group, or carboxy group),
Z represents a single bond or a connecting group wherein a number of atoms in a main chain is 1 to 3.
A medicament having inhibitory activity against plasminogen activator inhibitor-1, which comprises as an active ingredient a compound represented by the following general formula (I) or a salt thereof:
wherein R1 and R2 represents an aromatic group which may be substituted,
W represents a group selected from the following connecting group W-1:
(wherein a bond at the left end binds to the carbon atom and a bond at the right end binds to the nitrogen atom,
X represents sulfur atom or NH,
Y represents oxygen atom or sulfur atom,
R3 represents a hydrocarbon group, hydroxy group, or carboxy group),
Z represents a single bond or a connecting group wherein a number of atoms in a main chain is 1 to 3.
一种对纤溶酶原激活物抑制剂-1 具有抑制活性的药物,其活性成分包括下式(I)所代表的化合物或其盐:
其中 R1 和 R2 代表可被取代的芳香基团、
W 代表选自下列连接基 W-1 的基团:
(其中左端的键与碳原子结合,右端的键与氮原子结合、
X 代表硫原子或 NH
Y 代表氧原子或硫原子、
R3 代表烃基、羟基或羧基)、
Z 代表单键或连接基团,其中主链中的原子数为 1 至 3。
Synthesis and evaluation of pyrazolone compounds as SARS-coronavirus 3C-like protease inhibitors
A series of pyrazolone compounds as possible SARS-CoV 3CL protease inhibitors were designed, synthesized, and evaluated by in vitro protease assay using fluorogenic substrate peptide in which several showed potent inhibition against the 3CL protease. Interestingly, one of the inhibitors was also active against 3C protease from coxsackievirus B3. These inhibitors could be potentially developed into anti-coronaviral and anti-picornaviral agents. (C) 2010 Elsevier Ltd. All rights reserved.
Tungstophosphoric Acid-Catalyzed Synthesis of Pyrazolones in Water
作者:Zhen-Li Min、Xia-Min Hu
DOI:10.14233/ajchem.2013.14550
日期:——
A convenient and efficient method for the synthesis of pyrazolones via condensation of hydrazine derivatives with b-keto esters in water catalyzed by tungstophosphoric acid is described. It eliminates the need to dry solvents and substrates before use and the products are easily isolated with high yields.