Universal solid supports for solid phase oligosynthesis and methods for their preparation and use
申请人:——
公开号:US20040215010A1
公开(公告)日:2004-10-28
This invention pertains to solid-phase oligosynthesis, and more particularly to universal solid supports for solid-phase oligonucleotide synthesis, methods for their preparation, and methods for their use. One aspect of the invention pertains to a method for the preparation of a universal solid support suitable for use in solid-phase oligosynthesis, which method comprises the steps of: (a) reacting a pendant functional group (e.g., —NH2) of a solid support (e.g., CPG) with a linker reagent (e g., oxalyl chloride), thereby forming a pendant linker group (e.g., —C(═O)Cl); (b) removing at least a portion of excess unreacted linker reagent by evaporation (e.g., using a rotavapor apparatus); and, (c) reacting said pendant linker group with a cyclic reagent (e.g., protected inosine), thereby forming a pendant cyclic group.
本发明涉及固相寡核苷酸合成,尤其涉及用于固相寡核苷酸合成的通用固体支持物、其制备方法及其使用方法。本发明的一个方面涉及一种制备适用于固相寡核苷酸合成的通用固体支持物的方法,该方法包括以下步骤:(a) 使固体支持物(如 CPG)的悬垂官能团(如 -NH2)与连接试剂(如草酰氯)反应,从而形成悬垂连接基团(如、-C(═O)Cl);(b) 通过蒸发(如使用旋转蒸发仪)去除至少一部分过量的未反应的连接体试剂;以及,(c) 使所述悬垂连接体基团与环状试剂(如受保护的肌苷)反应,从而形成悬垂环状基团。