A method of making a macrocyclic chelator comprising converting Co(II)Cl
2
to a stabilized Co(III) complex, reacting the Co(III) complex with a cyclen ligand comprising a carboxylic acid or a methyl benzoic acid moiety through which amine bond formation with a primary amine can be achieved and reacting the Co(III) cyclen carboxylic acid or methyl benzoic acid complex with a suitable modified oligonucleotide to form a sequence-specific gene silencing moiety. A method comprising coordinating a kinetically inert ion to a macrocyclic chelator or ligand, bonding a first functional group, reacting with an oligonucleotide, bonding a second functional group, attaching the first functional group to the second functional group, binding the macrocyclic chelator to a target thus inhibiting translation, wherein the macrocyclic chelator hydrolyzes a photodiester bond.
一种制备大环
螯合剂的方法,包括将Co(II)Cl2转化为稳定的Co(III)配合物,将Co(III)配合物与含有
羧酸或甲基
苯甲酸基团的cyclen
配体反应,通过其中的一个基团与一级胺形成胺键,然后将Co(III) cyclen
羧酸或甲基
苯甲酸配合物与适当的修饰寡核苷酸反应,形成序列特异性
基因沉默的结构单元。一种方法包括将一个动力学惰性离子配位到大环
螯合剂或
配体上,结合第一个功能基团,反应寡核苷酸,结合第二个功能基团,将第一个功能基团连接到第二个功能基团,将大环
螯合剂与靶结合,从而抑制翻译作用,其中大环
螯合剂水解光二酯键。