Synthesis, characterization, and biological evaluation of 4-[(4-hydroxy-7-methyl-1,3-benzothiazol-2-yl) diazenyl]-5-methyl-2-phenyl-2,4-dihydro-3-pyrazol-3-one and its metal complexes
摘要:
New mononuclear Cu(II), Co(II) and Ni(II) complexes of novel azo-dye ligand 4-[(4-hydroxy-7-methyl-1,3-benzothiazol-2-yl)diazenyl]-5-methyl-2-phenyl-2,4-dihydro-3-pyrazol-3-one (L) with O,N-donor site were synthesized and are characterized by various spectroscopic techniques. The quantum chemical parameters were evaluated for all the compounds by ZINDO/1 semi-empirical method and are compared with the experimental data. Spectral investigations suggested the octahedral geometry for Co(II) and Ni(II) complexes and distorted tetrahedral geometry for Cu(II) complex. The antibacterial activity of the compounds was screened against different microbial strains and the results indicated that all the metal complexes exhibited higher activity than the free ligand. The interaction of pUC18 DNA with the synthesized compounds was explored by gel electrophoresis technique. All metal complexes exhibited significant cleavage activity against supercoiled pUC18 DNA. The anticancer activity of the compounds was studied against K562, A549, and MDA-MB-231 by MTT assay and all the metal chelates exhibited good anticancer properties.
NSD FAMILY INHIBITORS AND METHODS OF TREATMENT THEREWITH
申请人:The Regents of the University of Michigan
公开号:US20190183865A1
公开(公告)日:2019-06-20
Provided herein are small molecule inhibitors of NSD1, NSD2 and/or NSD3 activity, and methods of use thereof for the treatment of disease, including leukemia, breast cancer, osteosarcoma, lung and prostate cancers and other solid tumors as well as other diseases dependent on the activity of NSD1, NSD2 and/or NSD3.
NSD family inhibitors and methods of treatment therewith
申请人:The Regents of the University of Michigan
公开号:US11324729B2
公开(公告)日:2022-05-10
Provided herein are small molecule inhibitors of NSD1, NSD2 and/or NSD3 activity, and methods of use thereof for the treatment of disease, including leukemia, breast cancer, osteosarcoma, lung and prostate cancers and other solid tumors as well as other diseases dependent on the activity of NSD1, NSD2 and/or NSD3.
Practical Synthesis of a Vanilloid Receptor-1 Antagonist
作者:Oliver R. Thiel、Charles Bernard、Tony King、Mina Dilmeghani-Seran、Tracy Bostick、Robert D. Larsen、Margaret M. Faul
DOI:10.1021/jo8002216
日期:2008.5.1
Small molecule TRPV1 antagonists have been a recent focus in the search for pain treatment agents. We herein describe a practical and scalable synthesis of AMG 628 (1), a bis-substituted pyrimidine derivative that was identified as a highly efficacious agent, suitable for clinical development. Highlights of our approach include a practical route to a substituted benzothiazole, a scalable synthesis of an enantiopure piperazine fragment, and identification of conditions for selective coupling reactions on 2,6-dichloropyrimidine, to access the active pharmaceutical ingredient in high purity and overall yield.
Synthesis, characterization, and biological evaluation of 4-[(4-hydroxy-7-methyl-1,3-benzothiazol-2-yl) diazenyl]-5-methyl-2-phenyl-2,4-dihydro-3-pyrazol-3-one and its metal complexes
New mononuclear Cu(II), Co(II) and Ni(II) complexes of novel azo-dye ligand 4-[(4-hydroxy-7-methyl-1,3-benzothiazol-2-yl)diazenyl]-5-methyl-2-phenyl-2,4-dihydro-3-pyrazol-3-one (L) with O,N-donor site were synthesized and are characterized by various spectroscopic techniques. The quantum chemical parameters were evaluated for all the compounds by ZINDO/1 semi-empirical method and are compared with the experimental data. Spectral investigations suggested the octahedral geometry for Co(II) and Ni(II) complexes and distorted tetrahedral geometry for Cu(II) complex. The antibacterial activity of the compounds was screened against different microbial strains and the results indicated that all the metal complexes exhibited higher activity than the free ligand. The interaction of pUC18 DNA with the synthesized compounds was explored by gel electrophoresis technique. All metal complexes exhibited significant cleavage activity against supercoiled pUC18 DNA. The anticancer activity of the compounds was studied against K562, A549, and MDA-MB-231 by MTT assay and all the metal chelates exhibited good anticancer properties.
Chelate Stabilities of Certain Oxine-type Compounds. II. 4-Hydroxybenzothiazoles<sup>1</sup>
作者:T. J. Lane、C. S. C. Lane、A. Sam
DOI:10.1021/ja01471a002
日期:1961.5
The aciddissociationconstants of 4-hydroxybenzothiazole, 2- amino-4- hydroxybenzothiazole, 2-methylamino-4hydroxybenzothiazole, and 2-amino-4-hydroxy- 7-methylbenzothiazole were determined in 50% v/v p-dioxane at 25 and the chelatestabilityconstants of the ligands with Cu(II), Pb(II), Ni(H), Co(II), Zn(II), and Cd(II) were obtained by Calvin-Bjerrum potentiometric titration technique. The results