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Synthesis of Trinucleotide Building Blocks in Solution and on Solid Phase. 2018

Ruth Suchsland, and Bettina Appel, and Sabine Müller
Institute for Biochemistry, University Greifswald, Greifswald, Germany.

We have developed two methods, in solution and on solid phase, that give easy access to trinucleotide phosphoramidites capable of undergoing coupling reactions by the solid-phase phosphoramidite approach. The solution protocol is characterized by application of 5'-O-dimethoxytrityl (DMT) and 3'-O-tert-butyldimethylsilyl (TBDMS) as a pair of orthogonal protecting groups and 2-cyanoethyl (CE) for protection of the phosphate. Starting with suitably functionalized monomers, synthesis proceeds in the 3'- to 5'-direction, delivering the fully protected trinucleotide. The 3'-O-protecting group is cleaved followed by phosphitylation of the free 3'-OH group. The solid-phase protocol is based on standard phosphoramidite chemistry in conjunction with a dithiomethyl linkage connecting the 3'-starting nucleoside to the polymer. The disulfide bridge can be cleaved under neutral conditions for release of the trinucleotide from the support preserving all other protecting groups. © 2018 by John Wiley & Sons, Inc.

UI MeSH Term Description Entries
D009841 Oligonucleotides Polymers made up of a few (2-20) nucleotides. In molecular genetics, they refer to a short sequence synthesized to match a region where a mutation is known to occur, and then used as a probe (OLIGONUCLEOTIDE PROBES). (Dorland, 28th ed) Oligonucleotide
D010756 Phosphoric Acids Inorganic derivatives of phosphoric acid (H3PO4). Note that organic derivatives of phosphoric acids are listed under ORGANOPHOSPHATES. Pyrophosphoric Acids,Acids, Phosphoric,Acids, Pyrophosphoric
D000577 Amides Organic compounds containing the -CO-NH2 radical. Amides are derived from acids by replacement of -OH by -NH2 or from ammonia by the replacement of H by an acyl group. (From Grant & Hackh's Chemical Dictionary, 5th ed) Amide
D012833 Siloxanes Silicon polymers that contain alternate silicon and oxygen atoms in linear or cyclic molecular structures. Polysiloxane,Polysiloxanes,Siloxane
D012996 Solutions The homogeneous mixtures formed by the mixing of a solid, liquid, or gaseous substance (solute) with a liquid (the solvent), from which the dissolved substances can be recovered by physical processes. (From Grant & Hackh's Chemical Dictionary, 5th ed) Solution
D013343 Styrenes Derivatives and polymers of styrene. They are used in the manufacturing of synthetic rubber, plastics, and resins. Some of the polymers form the skeletal structures for ion exchange resin beads.
D019032 Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization A mass spectrometric technique that is used for the analysis of large biomolecules. Analyte molecules are embedded in an excess matrix of small organic molecules that show a high resonant absorption at the laser wavelength used. The matrix absorbs the laser energy, thus inducing a soft disintegration of the sample-matrix mixture into free (gas phase) matrix and analyte molecules and molecular ions. In general, only molecular ions of the analyte molecules are produced, and almost no fragmentation occurs. This makes the method well suited for molecular weight determinations and mixture analysis. Laser Desorption-Ionization Mass Spectrometry, Matrix-Assisted,MALD-MS,MALDI,Mass Spectrometry, Matrix-Assisted Laser Desorption-Ionization,Mass Spectroscopy, Matrix-Assisted Laser Desorption-Ionization,Matrix-Assisted Laser Desorption-Ionization Mass Spectrometry,Spectroscopy, Mass, Matrix-Assisted Laser Desorption-Ionization,MALDI-MS,MS-MALD,SELDI-TOF-MS,Surface Enhanced Laser Desorption Ionization Mass Spectrometry,Laser Desorption Ionization Mass Spectrometry, Matrix Assisted,MALDI MS,Mass Spectrometry, Matrix Assisted Laser Desorption Ionization,Mass Spectroscopy, Matrix Assisted Laser Desorption Ionization,Matrix Assisted Laser Desorption Ionization Mass Spectrometry
D066244 Proton Magnetic Resonance Spectroscopy Spectroscopy technique which measures changes in organic compounds by tracking the spectral energy of absorption of HYDROGEN atoms. 1H NMR,1H-MRS,1H-NMR

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