含有三(2,2'-联吡啶)钌 (II) 共价连接衍生物的 DNA 寡聚物和双链体:通过热力学和光谱测量合成和表征
摘要:
合成这些 d'寡核苷酸 5'-GCA-(C*)-TCAG-3' 和 5'-GCAC-(T*)-CAG-3'、C* 和 T* 子核苷胸苷、胞苷修饰。Ils possedent une extremite NH 2 (au niveau de la base) permettant la liaison avec un residu bipyridine。On obtient des oligonucleotides «marques» avec le bipyridyle qui reagissent ensuite avec un complexe du ruthenium: Ru(bpy) 2 (H 2 O) 2 2+ (bpy=bipyridine) pour donner un complexe Ru(bpy) 3 2+ -oligonucleotide (la liaison entre
Design of Luminescent Biotinylation Reagents Derived from Cyclometalated Iridium(III) and Rhodium(III) Bis(pyridylbenzaldehyde) Complexes
作者:Siu-Kit Leung、Karen Ying Kwok、Kenneth Yin Zhang、Kenneth Kam-Wing Lo
DOI:10.1021/ic100092d
日期:2010.6.7
synthesized and characterized and their photophysical and electrochemical properties studied. Upon photoexcitation, the iridium(III) complexes 1, 2, and 4 exhibited intense and long-lived orange-yellow luminescence in fluid solutions at 298 K and in rigid glass at 77 K. The rhodium(III) complexes 3 and 5 were weakly emissive in fluid solutions at 298 K but showed intense luminescence in low-temperature glass
Synthesis of oligonucleotides containing N2-(5-carboxypentyl)-2′-deoxyguanosine and 5-[2-(4′-methyl-2,2′-dipyrid-4-yl-carboxamido)ethylthio]-2′-deoxyuridine
作者:Guangyi Wang、Donald E. Bergstrom
DOI:10.1016/s0040-4039(00)61684-2
日期:1993.10
Synthesis of 2′-deoxyguanosine tethered at N-2 to a carboxypentyl group and 2′-deoxyuridine tethered through C-5 to a bipyridine is described. The modified nucleosides were converted to the corresponding phosphoramidites and incorporated into mono- and di-modified oligonucleotides. The carboxypentyl group was introduced in the ester form into oligonucleotides and recovered by hydrolysis with aqueous
Synthesis, Photophysical and Electrochemical Properties, and Protein-Binding Studies of Luminescent Cyclometalated Iridium(III) Bipyridine Estradiol Conjugates
a, 4 b, 5 a, and 5 b showed substantial (3)IL (pi-->pi*) (pq-/bsb-) character. The lipophilicity of all the complexes was determined by reversed-phase HPLC. Uponbinding to estrogen receptor alpha, all of these iridium(III) estradiol conjugates exhibited emission enhancement and lifetime extension, rendering them a novel series of luminescent probes for this receptor.