Method for producing monomer for single-stranded nucleic acid molecule
AssigneeSumitomo Chemical Company, Limited
InventorsKanako SATO, Hideki IHARA
Life of this patent
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Abstract
A compound represented by formula (3): or an enantiomer thereof can be obtained by comprising: reacting a compound represented by formula (1): or an enantiomer thereof with 6-hydroxyhexanoic acid in a solvent in the presence of an additive such as 1-hydroxybenzotriazole and a condensing agent, and then mixing the resultant reaction mixture, water, and a base such as alkali metal hydroxide to produce a compound represented by formula (2): or an enantiomer thereof; and reacting the compound represented by formula (2) or an enantiomer thereof with 2-cyanoethyl-N,N,N′,N′-tetraisopropylphosphorodiamidite in a solvent in the presence of a coupling activator.
Claims5
A method for producing a compound represented by formula (3):
- or an enantiomer thereof, comprising:
- reacting a compound represented by formula (1):
- or an enantiomer thereof with 6-hydroxyhexanoic acid in a solvent in the presence of an additive and a condensing agent selected from the group consisting of 1-hydroxybenzotriazole, 1-hydroxy-7-azabenzotriazole, N-hydroxysuccinimide, ethyl(hydroxyimino)cyanoacetate, N,N′-disuccinimidyl carbonate, N-hydroxyphthalimide, N-hydroxypiperidine, 3-hydroxy-4-oxo-3,4-dihydro-1,2,3-benzotriazine and N-hydroxy-5-norbornene-2,3-dicarboxylic acid imide, and then mixing the resultant reaction mixture, water, and a base selected from the group consisting of alkali metal hydroxide, alkali metal carbonate, a bicyclic amidine compound, alkali metal alkoxide, and quaternary ammonium hydroxide to produce a compound represented by formula (2):
- or an enantiomer thereof;
- and
- reacting the compound represented by formula (2) and obtained in the production step or an enantiomer thereof with 2-cyanoethyl-N,N,N′,N′-tetraisopropylphosphorodiamidite in a solvent in the presence of a coupling activator to obtain the compound represented by formula (3) or an enantiomer thereof.
Dependencies are inferred from the claim text.