The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 14, 2017
Filed:
Jul. 20, 2011
Zhen Xi, Tianjin, CN;
Zicai Liang, Beijing, CN;
Jinyu Huang, Tianjin, CN;
Suzhou Ribo Life Sciene Co., Ltd., Kunshan, CN;
Abstract
Nucleotide and/or oligonucleotide represented by formula (1) and the liquid phase synthesis process thereof. The present invention provides a liquid phase synthesis process for preparing a nucleotide and/or an oligonucleotide, comprising a process for combining the nucleotide and/or oligonucleotide protective groups, in which, under the condition that the 2'-hydroxyl group is protected by a group with a sterically hindered silane structure, the 3′ phosphate group(s) of the nucleotide and/or oligonucleotide is/are directly protected by (a)β-cyanoethyl group(s), and after the β-cyanoethyl group(s) is/are removed, the resulting product can directly participate in the next cycle of synthesis, wherein the synthesis reaction is carried out in a reaction flask or reaction kettle, without being limited by a solid carrier or synthesizer, so that the large scale preparation of oligonucleotides can be achieved.