Nucleophilic Displacements of Imidazoles. II. Displacements of Halogen by S-Nucleophiles and Displacements of Mesyl Groups Activated by Nitro; Oxidation of Imidazolethiols
Improved Triester process for the synthesis of oligonucleotides
申请人:GENENTECH, INC.
公开号:EP0002322A2
公开(公告)日:1979-06-13
Oligonucleotides of a defined sequence, particularly oligodeoxyribonucleotides are prepared by an improved "triester" process. The oligodeoxyribonucleotides can be converted to DNA segments which can be used for insertion in plasmid DNA to code the plasmid DNA for predetermined purposes. For example, the plasmid DNA can be coded to stimulate the synthesis of polypeptide hormones by a bacterium such as E. Coli.
通过改进的 "三酯 "工艺制备具有确定序列的寡核苷酸,特别是寡脱氧核苷酸。寡脱氧核苷酸可转化为 DNA 片段,用于插入质粒 DNA 中,对质粒 DNA 进行编码以达到预定目的。例如,可对质粒 DNA 进行编码,以刺激大肠杆菌等细菌合成多肽激素。
Process for de-cyanoethylating blocked nucleotides
申请人:ELI LILLY AND COMPANY
公开号:EP0075392A1
公开(公告)日:1983-03-30
A process for selectively removing a β-cyanoethyl blocking group from the phosphate moiety of a nucleotide or polynucleotide, which comprises treating said nucleotide or polynucleotide with a primary amine having from 3 to 5 carbon atoms or diethylamine.