129422-96-4Relevant articles and documents
DNA hydrolysis catalyzed by tris(diisopropyl-1,4,7-triazacyclononanes) ethane metal complexes
Cheng, Chien-Chung,Huang, Yan-Chen,Liu, Ming-Chan
, p. 1201 - 1208 (2004)
Novel trinuclear coordinated ligands were designed using three of 1,4,7-triazacyclononane moieties with a tribromo linker. These ligands show greater capability and potency in association with various metal ions. Tris(diisopropyl-1,4,7-triazacyclononanes)ethane (2) associated with Cu 2+ and Ce4+ ions shows better reactivity to achieve DNA hydrolysis at 37 °C at pH 8 for 5 hr. Using high resolution of polyacrylamide gel electrophoresis, DNA cleavage reaction in Tris-HCl buffer causes a nicking site at the single-stranded region. Alternatively, the reaction in HEPES buffer shows a random DNA cleavage included the double-stranded region. Hydrolysis of phosphodiester bond mediated by trinuclear metal complex is capable of performing at the physiological temperature 37 °C, but it has a lower reactivity compared to mono- and di-nuclear metal complexes. The result suggests that trinuclear metal complexes have a bulky environment to prevent from going toward the phosphodiester bond. The design of an efficient chemical hydrolyase will be a challenge in order to construct a coordinate ligand with the enhancement of hydrolytic activity and the reduction of the steric environment.
Acceleration of hydrolytic DNA cleavage by dicopper(II) complexes with p-cresol-derived dinucleating ligands at slightly acidic pH and mechanistic insights
Kodera, Masahito,Kadoya, Yuki,Aso, Kenta,Fukui, Katsuki,Nomura, Akiko,Hitomi, Yutaka,Kitagishi, Hiroaki
, p. 739 - 747 (2019/05/16)
Four dicopper(II) complexes, [Cu2(ˉ-X)(bcmp)](ClO4)2 [X = OH (1a) and X = Cl (1b)], [Cu2(ˉ-OH)(Me4bcmp)]-(ClO4)2 (2), and [Cu2(bcc)](ClO4)3 (3),
An improved synthesis of 1,4,7-triazacyclononanes (tacns) and 1,4,7,10-tetraazacyclododecanes (cyclens)
Huang, Jianying,Zhou, Zhongyuan,Tak, Hang Chan
experimental part, p. 2341 - 2344 (2010/02/28)
Reaction of tosylbis[2-(tosyloxy)ethyl]amine with ethylenediamine gives 1-tosyl-1,4,7-triazacyclononane in good yield. A similar reaction of tosylbis[2-(tosyloxy)ethyl]amine with diethylenetriamine gives 1-tosyl-1,4,7,10-tetraazacyclododecane. These tosyl