发明名称 |
SYNTHESIS OF OLIGONUCLEOTIDES OR PHOSPHOROTHIOATE OLIGONUCLEOTIDE WITH A CAPPING AGENT OF N-METHYLIMIDAZOLE FREE OF 1,3,5-TRIMETHYLHEXAHYDRO-1,3,5-TRIAZINE |
摘要 |
According to the present invention, there is provided a process for making an oligonucleotide or a phosphorothioate oligonucleotide. The process has the following steps: (a) providing an amount of a blocked nucleotide; (b) deblocking the blocked nucleotide to form an unblocked nucleotide; (c) activating the deblocked nucleotide; (d) coupling the deblocked nucleotide with a phosphoramidite to form a phosphite oligomer; (e) capping any uncoupled deblocked nucleotide via reaction with an amount of acetic anhydride and an amount of N-methylimidazole that is substantially free of 1,3,5-trimethylhexahydro-1,3,5-triazine; (f) oxidizing the phosphite oligomer to form the oligonucleotide or sulfurizing the phosphite oligomer to form a phosphorothioate oligonucleotide; and (g) optionally repeating steps (b) through (f). There is also a process for capping a nucleotide.
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申请公布号 |
US2009099352(A1) |
申请公布日期 |
2009.04.16 |
申请号 |
US20080249538 |
申请日期 |
2008.10.10 |
申请人 |
HONEYWELL INTERNATIONAL INC. |
发明人 |
LORENZ SANDRA;PRZYBYTEK JIM;SNOBLE KAREL |
分类号 |
C07H1/00 |
主分类号 |
C07H1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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