316805-01-3Relevant academic research and scientific papers
Synthesis of aryl-substituted or aryl-fused N-hydroxyethyl and N-hydroxymethypyrazole derivatives as potential ligands for the estrogen receptor
Allahyari-Devin, Maryam,Abedi, Behnam,Navidpour, Latifeh,Shafiee, Abbas
, p. 43 - 53 (2013/02/25)
A new series of N-hydroxyethylpyrazole (12a-f) and N-hydroxymethylpyrazole derivatives (15a-f) were designed for their estrogenic activities, having a 11.0 ± 0.5 A distance between their two hydroxyl groups, aliphatic-OH and phenolic-OH similar to 17β-estradiol (E2) as an endogenous hormone. To synthesize the title compounds, the key intermediate 1,3-dicarbonyl derivatives (2 and 8), were treated with hydrazine hydrate to produce the pyrazole ring 5 and 9. Further hydroxyalkylation of the latter produced the title pyrazoles. The position of hydroxyethyl or hydroxymethyl substituents in the products was determined through 2D NOE NMR spectroscopy.
Copper(II/I) complexes of a bulky tris(pyrazolylmethyl)amine ligand
Chen, Zhixuan (Jack),Karasek, Natasha,Craig, Donald C.,Colbran, Stephen B.
, p. 3445 - 3452 (2007/10/03)
The ligand tris[3-(4-methoxyphenyl)-5-methylpyrazol-1-ylmethyl]amine (L), the copper(II) complexes [CuLCL2] 1, [CuLCL][SbF6] 2 and [CuL(H2O)][SbF6]2 3, and the copper(I) complex [CuL][CF3SO3] 4 have been prepared. Complexes 1-3 are reduced by [BPh4]- ion in a range of solvents to afford [CuL]+ ion. The [CuL]+ ion does not react with dioxygen nor carbon monoxide but does reat with chloride ion. Physicochemical and cyclic voltammetry data are reported for 1/4, along with crystal structure analyses of 1-3 and [CuL][CuCl2]. There are some notable differences between the structures and properties of these copper complexes and those reported for analogues with pyridyl- or imidazolyl amine ligands.
