New reagents for the introduction of reactive functional groups into chemically synthesized DNA probes.
An efficient and versatile preparative approach is described, allowing for the preparation of DNA probes modified with an aldehyde group at the 3'- or 5'-end. The developed synthetic strategy allows for the preparation of a new family of phosphoramidites and solid supports compatible with the automated synthesis of modified oligonucleotide probes. These new reagents were prepared from intermediates 3 and 3a, obtained from the commercially available aleuritic acid 1. It was demonstrated that the new phosphoramidite reagents also could be used as new types of cleavable linkers. A new and efficient method for the production of 5' aldehyde-labeled DNA probes was developed.
Skrzypczynski
Zbigniew
Z
Third Wave Technologies, 502 S. Rosa Road, Madison, Wisconsin 53719, USA. zskrzypczynski@twt.com
Wayland
Sarah
S
D015342:DNA Probes / Q000032:analysis* / Q000138:chemical synthesis* / Q000737:chemistry; D009943:Organophosphorus Compounds / Q000032:analysis / Q000138:chemical synthesis / Q000737:chemistry
D015342:DNA Probes; D009943:Organophosphorus Compounds; C434331:phosphoramidite