Oligonucleotide production method, and nucleoside, nucleotide, or oligonucleotide
US10919928B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2018 |
| Grant date | Feb 16, 2021 |
| Priority date | — |
| Expiry date | Aug 25, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/55
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Oligonucleotides may be produced by a process, including (1) condensing a nucleoside, nucleotide or oligonucleotide (b), and a nucleoside, nucleotide or oligonucleotide (a), or a substituted nucleotide or oligonucleotide (α) in a non-polar solvent to give a reaction solution containing a phosphite triester product (c); (3) oxidizing or sulfurizing the phosphite triester product (c) to give a reaction solution containing an oligonucleotide (d) wherein the 5′-hydroxy group is protected; (4) deprotecting the oligonucleotide (d) to give a reaction solution containing an oligonucleotide (e) wherein the 5′-hydroxy group is not protected; and (6) adding a polar solvent to the reaction solution containing the oligonucleotide (e) and purifying the oligonucleotide (e) by solid-liquid separation, wherein said nucleoside, nucleotide or oligonucleotide (a) or said substituted nucleotide or oligonucleotide (α) is a compound represented by formula (a-i): wherein Base, Rp1, R10, m, L, Y, and Z are defined herein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.