142350-85-4Relevant articles and documents
DNA-cleavage activity of the iron(II) complex with optically active ligands, meta- and para-xylyl-linked N’,N’-dipyridylmethyl-cyclohexane-1,2-diamine
Fujita, Mikako,Ichimaru, Yoshimi,Imai, Masanori,Jin, Wanchun,Kato, Koichi,Kurosaki, Hiromasa,Okuno, Yoshinori,Otsuka, Masami,Yamaguchi, Yoshihiro
, (2021/02/12)
DNA-cleavage agents such as bleomycin have potential anticancer applications. The development of a DNA-cleavage reagent that recognizes specific sequences allows the development of cancer therapy with reduced side effects. In this study, to develop novel compounds with specific DNA-cleavage activities, we synthesized optically active binuclear ligands, (1R,1′R,2R,2′R)-N1,N1′-(meta/para-phenylenebis(methylene))bis(N2,N2-bis(pyridin-2-ylmethyl)cyclohexane-1,2-diamine) and their enantiomers. The DNA-cleavage activities of these compounds were investigated in the presence of Fe(II)SO4 and sodium ascorbate. The obtained results indicated that the Fe(II) complexes of those compounds efficiently cleave DNA and that their cleavage was subtle sequence-selective. Therefore, we succeeded in developing compounds that can be used as small-molecule drugs for cancer chemotherapy.
Carbamate-based P,O-ligands for asymmetric allylic alkylations
Pálv?lgyi, ádám Márk,Schnürch, Michael,Bica-Schr?der, Katharina
supporting information, (2020/05/18)
Herein we report the design and successful catalytic application of modified Trost-ligands in asymmetric allylic alkylation (AAA) reactions. A small set of carbamate-monophosphine P,O-ligands has been prepared in a straightforward two-step synthetic procedure. After optimization of the reaction conditions, high catalytic activities and excellent enantioselectivity up to >99% have been attained.
Synthesis of monoacylated derivatives of 1,2- cyclohexanediamine. Evaluation of their catalytic activity in the preparation of Wieland-Miescher ketone
Fuentes De Arriba, Angel L.,Seisdedos, David G.,Simon, Luis,Alcazar, Victoria,Raposo, Cesar,Moran, Joaquin R.
supporting information; experimental part, p. 8303 - 8306 (2011/02/27)
Ureas, carbamoyl derivatives, amides, and sulfonamides can be easily prepared from the strained (R,R)-cylohexanediamine urea (1) in high yield, leaving a free amino group that shows good catalytic activity in intramolecular aldol condensations. The preparation of Wieland-Miescher ketone has been studied with these catalysts.