171285-25-9

Chemical phosphorylation reagent for the synthesis of 5’-phosphorylated oligonucleotides. The reagent contains a DMT group in its structure, which allows oligonucleotide purification on C18-cartridges or by reversed-phase chromatography. To yield 5’-phosphorylated oligonucleotide, remove DMT group and then deprotect the phosphate group with diluted ammonium solution (0.1 M). Deprotection of the phosphate group is rapid and efficient even under mild basic conditions, so this reagent can be used for DMT-Off synthesis, for example for RNA synthesis, or with dye phosphoramidites that require mild deprotection conditions.

Diluent: anhydrous acetonitrile. Add the diluent to the recommended concentration (0.1 M) and wait until reagent dissolution is complete while mixing periodically. This reagent is viscous amorphous, and it may take up to 10 minutes to dissolve it. Store the diluted reagent in anhydrous conditions for not more than 24 hours.

Coupling: 6 minutes

O-DMT-2,2-di(ethoxycarbonyl)propan-1,3-diol is a chemical phosphorylation reagent used for the synthesis of 5'-phosphorylated oligonucleotides. It contains the chemical protective group DMT in its structure, which allows for purification through C18 columns or reversed-phase chromatography[1].

[1] Guzaev A, et al. A new approach for chemical phosphorylation of oligonucleotides at the 5′-terminus[J]. Tetrahedron, 1995, 51(34): 9375-9384.