Imidazole-based pinanamine derivatives: Discovery of dual inhibitors of the wild-type and drug-resistant mutant of the influenza A virus
摘要:
We previously reported potent hit compound 4 inhibiting the wild-type influenza A virus A/HK/68 (H3N2) and A/M2-S31N mutant viruses A/WS/33 (H1N1), with its latter activity quite weak. To further increase its potency, a structure-activity relationship study of a series of imidazole-linked pinanamine derivatives was conducted by modifying the imidazole ring of this compound. Several compounds of this series inhibited the amantadine-sensitive virus at low micromolar concentrations. Among them, 33 was the most potent compound, which was identified as being active on an amantadine-sensitive virus through blocking of the viral M2 ion channel. Furthermore, 33 markedly inhibited the amantadine-resistant virus (IC50 = 3.4 mu M) and its activity increased by almost 24-fold compared to initial compound, with its action mechanism being not M2 channel mediated. (C) 2015 Elsevier Masson SAS. All rights reserved.
Mild, efficient, and chemoselective dehydrogenation of 2-imidazolines, bis-imidazolines, and N-substituted-2-imidazolines with potassium permanganate supported on montmorillonite K-10
Certain 4-aminomethyl-2-substituted imidazole derivatives and 2-aminomethyl-4-substituted imidazole derivatives: new classes of dopamine receptor subtype specific ligands
申请人:Neurogen Corporation, Corporation of the State of Delaware
公开号:US20030018025A1
公开(公告)日:2003-01-23
Disclosed are compounds of the formula:
1
wherein R
1
represents optionally substituted aryl, heteroaryl, arylalkyl, or cycloalkyl groups; X, Z, and Y are optionally substituted nitrogen or carbon atoms; R
3
and R
4
are organic or inorganic substitutents which may togther form ring structutes; m is zero, one or two; and R
5
and R
6
are are organic or inorganic substituents;
and the pharmaceutically acceptable addition salts thereof,
which compounds are highly selective partial agonists or antagonists at brain dopamine receptor subtypes or prodrugs thereof and are useful in the diagnosis and treatment of affective disorders such as schizophrenia and depression as well as certain movement disorders such as Parkinsonism.
chelation‐assisted highly regio‐ and stereoselective directolefination of imidazoles with olefins has been developed. A broad range of C2‐substituted N‐(2‐pyrimidyl)imidazoles underwent smooth C5‐olefination with both activated and unactivated olefins to furnish the corresponding products in good to excellent yields with high tolerance of functional groups on both coupling partners in the presence of a
USE OF PT-AND PD-BIS-AND TETRA-CARBON COMPLEXES WITH BRIDGED CARBON LIGANDS IN OLEDS
申请人:Strassner Thomas
公开号:US20090326237A1
公开(公告)日:2009-12-31
The use of Pt- and Pd-bis- and tetracarbene complexes with bridged carbene ligands in organic light-emitting diodes, organic light-emitting diodes comprising at least one aforementioned Pt- or Pd-carbene complex, at least one transition metal-carbene complex of the general formula I and/or II, organic light-emitting diodes where the at least one transition metal-carbene complex of the general formula I and/or II is present in the light-emitting layer, a blocking layer for electrons, a blocking layer for excitons and/or a blocking layer for holes, a light-emitting layer comprising at least one aforementioned Pt- or Pd-carbene complex, organic light-emitting diodes comprising at least one inventive light-emitting layer, and devices which comprise at least one inventive organic light-emitting diode.
NITROGEN-CONTAINING ORGANIC COMPOUND, CHEMICALLY AMPLIFIED POSITIVE RESIST COMPOSITION, AND PATTERNING PROCESS
申请人:SAGEHASHI Masayoshi
公开号:US20120052441A1
公开(公告)日:2012-03-01
An aralkylcarbamate of imidazole base is effective as the quencher. In a chemically amplified positive resist composition comprising the carbamate, deprotection reaction of carbamate takes place by reacting with the acid generated upon exposure to high-energy radiation, whereby the composition changes its basicity before and after exposure, resulting in a pattern profile with advantages including high resolution, rectangular shape, and minimized dark-bright difference.
[EN] PROCESS FOR PREPARATION OF ALUMINUM SALT OF PHOSPHONIC ACID ESTER<br/>[FR] PROCÉDÉ DE PRÉPARATION D'UN SEL D'ALUMINIUM D'UN ESTER D'ACIDE PHOSPHONIQUE
申请人:ICL IP AMERICA INC
公开号:WO2013077989A1
公开(公告)日:2013-05-30
There is provided herein a process for the preparation of aluminum salts of phosphonic acid esters by reacting phosphonic acid diesters with aluminum hydroxide in the presence of a catalyst. The catalyst is selected from the group consisting of a phase transfer catalyst, a thermally stable tertiary amine having a boiling point higher than about 140°C, a thermally stable tertiary phosphine having a boiling point higher than 140°C and combinations thereof. The aluminum phosphonates prepared can be used for making flame retarded thermoplastic polymers.