Fast Black K salt 、 N,N-二羟乙基苯胺 在
碳酸氢钠 作用下,
以
甲醇 、 水 为溶剂,
反应 1.33h,
以74%的产率得到4-nitrobenzylazo-2',5'-dimethoxybenzylazo-4'''-N,N-di(2-hydroxyethyl)azobenzene
COMPOUNDS AND METHODS FOR LABELING OLIGONUCLEOTIDES
申请人:Laikhter Andrei
公开号:US20090299041A1
公开(公告)日:2009-12-03
The invention provides a novel method of labeling oligonucleotides, with reporter moieties, including but not limited to, quenchers, fluorophores, biotin, digoxigenin, peptides and proteins. In addition, this invention provides a method of detecting hybridization of oligonucleotides. This invention also provides novel azo quenchers having the general formula shown below.
The invention further provides compositions comprising labeled oligonucleotides and solid supports. The invention also provides kits comprising at least one composition of the present invention.
The present invention provides a family of dark quenchers, termed Black Hole Quenchers (“BHQs”), that are efficient quenchers of excited state energy but which are themselves substantially non-fluorescent. Also provided are methods of using the BHQs, probes incorporating the BHQs and methods of using the probes.