Modified nucleoside synthon.

After incorporation into an oligonucleotide, irradiation at 365 nm causes strand cleavage, leaving a phosphate on the 5' end and a hydroxyl residue on the 3' end.

Phosphoramidite used to incorporate alkyne-U functionality into an oligonucleotide for coupling reactions.

Phosphoramidite for internal or 5'-incorporation of a deaza-modified dG nucleobase into an oligonucleotide.

For the chemical phosphorylation of oligonucleotides with concomitant fluorous affinity purification.