Mononuclear iron(III) complexes supported by tripodal N3O ligands: Synthesis, structure and reactivity towards DNA cleavage
摘要:
A new synthetic route to the known tripodal tetradentate N3O ligand L-1 (HL1 = [N-(3,5-di-tert-butyl-2-hydroxybenzyl)-N,N-di-(2-pyridylmethyl)]amine) is reported. The related compounds HLn (n = 2, 3) were prepared by a similar procedure. Treatment of HLn (n = 1-3) with FeCl3 center dot 6H(2)O in hot methanol led to the mononuclear iron(III) complexes [Fe(Ln)Cl-2] (1: n = 1, 2: n = 2, 3: n = 3). The solid-state structures of complexes 1 and 2 were determined by X-ray crystallography. [Fe(L-1)Cl-2] (1) showed effective nuclease activity in the presence of hydrogen peroxide, converting supercoiled plasmid DNA to its linear form. (C) 2009 Elsevier B.V. All rights reserved.
Mononuclear iron(III) complexes supported by tripodal N3O ligands: Synthesis, structure and reactivity towards DNA cleavage
摘要:
A new synthetic route to the known tripodal tetradentate N3O ligand L-1 (HL1 = [N-(3,5-di-tert-butyl-2-hydroxybenzyl)-N,N-di-(2-pyridylmethyl)]amine) is reported. The related compounds HLn (n = 2, 3) were prepared by a similar procedure. Treatment of HLn (n = 1-3) with FeCl3 center dot 6H(2)O in hot methanol led to the mononuclear iron(III) complexes [Fe(Ln)Cl-2] (1: n = 1, 2: n = 2, 3: n = 3). The solid-state structures of complexes 1 and 2 were determined by X-ray crystallography. [Fe(L-1)Cl-2] (1) showed effective nuclease activity in the presence of hydrogen peroxide, converting supercoiled plasmid DNA to its linear form. (C) 2009 Elsevier B.V. All rights reserved.
作者:Kei Yamada、Arghya Deb、Veronika M. Shoba、Donghyun Lim、Basudeb Maji、Ashley E. Modell、Amit Choudhary
DOI:10.1002/anie.202201698
日期:2022.6.7
A general approach to rationally design ZnII ionophores from ZnII chelator by incorporation of silyl-based groups is reported. These ionophores were more potent than several reported ZnII ionophores. Furthermore, these ZnII ionophores demonstrated selective antibacterial activity and lower mammalian cell toxicity compared to the known ionophore, pyrithione.
Mononuclear iron(III) complexes supported by tripodal N3O ligands: Synthesis, structure and reactivity towards DNA cleavage
作者:Yee-Lok Wong、Chun-Yin Mak、Hoi Shan Kwan、Hung Kay Lee
DOI:10.1016/j.ica.2009.12.039
日期:2010.4
A new synthetic route to the known tripodal tetradentate N3O ligand L-1 (HL1 = [N-(3,5-di-tert-butyl-2-hydroxybenzyl)-N,N-di-(2-pyridylmethyl)]amine) is reported. The related compounds HLn (n = 2, 3) were prepared by a similar procedure. Treatment of HLn (n = 1-3) with FeCl3 center dot 6H(2)O in hot methanol led to the mononuclear iron(III) complexes [Fe(Ln)Cl-2] (1: n = 1, 2: n = 2, 3: n = 3). The solid-state structures of complexes 1 and 2 were determined by X-ray crystallography. [Fe(L-1)Cl-2] (1) showed effective nuclease activity in the presence of hydrogen peroxide, converting supercoiled plasmid DNA to its linear form. (C) 2009 Elsevier B.V. All rights reserved.