Synthesis and anti-inflammatory evaluation of some new 3,6-disubstituted-1,2,4-triazolo-[3,4-b]-1,3,4-thiadiazoles bearing pyrazole moiety
摘要:
In the present study, a new series of 3,6-disubstituted-1,2,4-triazolo-[3,4-b]-1,3,4-thiadiazoles (4aj) have been synthesized by condensing 3-substituted-4-amino-5-mercapto-1,2,4-triazoles (1a-b) with various 3-substituted-pyrazole-4-carboxylic acids (3a-e) in the presence of POCl3. The structures of newly synthesized compounds were characterized by elemental analysis, IR, H-1 NMR, C-13 NMR, and mass spectroscopic studies. Structure of the compound 4b was also confirmed by recording the single crystal X-ray structure. All the synthesized compounds were screened for their anti-inflammatory activities by carrageenan induced paw edema method. Anti-inflammatory screening indicated that, compounds 4d, 4e, and 4h were found to be biologically active whereas remaining compounds showed poor anti-inflammatory activity. Also molecular docking studies were also performed for compounds which showed good anti-inflammatory activity.
SUBSTITUTED AZOLE AROMATIC HETEROCYCLES AS INHIBITORS OF 11BETA-HSD-1
申请人:Bartberger D. Michael
公开号:US20080021022A1
公开(公告)日:2008-01-24
Compounds of formula I and IV are described and have therapeutic utility, particularly in the treatment of diabetes, obesity and related conditions and disorder:
wherein the variables A-B, R
1
, R
2
, m, and Q are described herein.
Synthesis of 3-Substituted Arylpyrazole-4-carboxylic Acids
作者:A. V. Lebedev、A. B. Lebedeva、V. D. Sheludyakov、E. A. Kovaleva、O. L. Ustinova、I. B. Kozhevnikov
DOI:10.1007/s11176-005-0318-7
日期:2005.5
3-aryl-substituted pyrazole-4-carboxylic acids, involving Vilsmeier formylation of semicarbazones of 26 available mono- and disubstituted acetophenones and 2-acetylthiophene followed by oxidation of the resulting 3-aryl-substituted pyrazole-4-carboxaldehydes under the action of potassium permanganate. The mechanism of the formylation reaction is discussed. The method successfully works even with acetophenones
Fragment-Based Covalent Ligand Screening Enables Rapid Discovery of Inhibitors for the RBR E3 Ubiquitin Ligase HOIP
作者:Henrik Johansson、Yi-Chun Isabella Tsai、Ken Fantom、Chun-Wa Chung、Sandra Kümper、Luigi Martino、Daniel A. Thomas、H. Christian Eberl、Marcel Muelbaier、David House、Katrin Rittinger
DOI:10.1021/jacs.8b13193
日期:2019.2.13
of 3 subunits, HOIP, HOIL-1L, and SHARPIN. Herein, we describe the discovery of inhibitors targeting the active site cysteine of the catalytic subunit HOIP usingfragment-based covalent ligand screening. We report the synthesis of a diverse library of electrophilic fragments and demonstrate an integrated use of protein LC–MS, biochemical ubiquitination assays, chemical synthesis, and protein crystallography
Synthesis, characterization, antioxidant, and anticancer studies of 6-[3-(4-chlorophenyl)-1H-pyrazol-4-yl]-3-[(2-naphthyloxy)methyl][1,2,4]triazolo[3,4-b][1,3,4]thiadiazole in HepG2 cell lines
作者:Dhanya Sunil、Arun M. Isloor、Prakash Shetty、K. Satyamoorthy、A. S. Bharath Prasad
DOI:10.1007/s00044-010-9436-9
日期:2011.9
Triazolo-thiadiazoles exhibit a variety of pharmacological properties, due to their cytotoxicity. In continuation of a previous study on triazolo-thiadiazoles, the authors have synthesized a new thiadiazole, 6-[3-(4-chlorophenyl)-1-H-pyrazol-4-yl]-3-[(2-naphthyloxy)methyl][1,2,4]triazolo[3,4-b][1,3,4]thiadiazole (CPNT), which was further characterized by advanced spectral techniques and elemental
Substituted azole aromatic heterocycles as inhibitors of 11β-HSD-1
申请人:Amgen Inc.
公开号:US07666888B2
公开(公告)日:2010-02-23
Compounds of formula I and IV are described and have therapeutic utility, particularly in the treatment of diabetes, obesity and related conditions and disorder:
wherein the variables A-B, R1, R2, m, and Q are described herein.