C-5 Modified Nucleosides: Direct Insertion of Alkynyl-Thio Functionality in Pyrimidines
摘要:
A route is presented to append, in a single step, alkynyl thioesters to the 5-position of a pyrimidine ring of a nucleoside that is unprotected. These products should be useful to support in vitro selection experiments with functionalized DNA.
C-5 Modified Nucleosides: Direct Insertion of Alkynyl-Thio Functionality in Pyrimidines
作者:Heike A. Held、Abhijit Roychowdhury、Steven A. Benner
DOI:10.1081/ncn-120022030
日期:2003.7.1
A route is presented to append, in a single step, alkynyl thioesters to the 5-position of a pyrimidine ring of a nucleoside that is unprotected. These products should be useful to support in vitro selection experiments with functionalized DNA.
Intrastrand locks increase duplex stability and base pairing selectivity
作者:Cora Prestinari、Clemens Richert
DOI:10.1039/c1cc14008f
日期:——
Oligodeoxynucleotide probes with disulfide locks between neighboring nucleobases show increases in melting point for duplexes with RNA target strands of up to 7.6 degrees C. The weakly pairing TT dimers are replaced with locked 2'-deoxy-5-(thioalkynyl)uridine residues via automated synthesis.