No coupling reagent is required. The PEG amine can perform efficient PEGylation with NHS ester at pH 7-9.
1) Slowly dissolve amine bearing small molecules in organic solvents such as DMF, CH2Cl2, DMSO, THF,
other solvents as needed.
2) Under continuous stirring, NHS-containing compound was added to the above reaction mixture
equivalent by mmol depending on the reaction kinetics.
3) The reaction mixture was stirred for 3-24 hours depending on the substrate properties, monitored either
by LC-MS or TLC plate.
4) The final product can be isolated by general organic synthesis workup or by column purification.
Amino PEG 氨基聚乙二醇修饰方法
关于YARE:
YARE-PEG修饰性PEG产品特点及技术优势:
1、提供多种官能团修饰,性能好,纯度高,产品分子量可定制,产品聚合分散度(PDI)小于 1.05;
2、生产工艺简化,杂质低,品质稳定;
3、批量生产,成本可控;
4、可提供2000多种产品规格;
5、其他特殊规格可提供定制。
本文介绍了一种无需耦合剂的高效PEGylation方法,使用PEG胺在pH7-9条件下与NHS酯反应。步骤包括溶解小分子胺于有机溶剂、加入NHS化合物、反应混合物搅拌数小时至24小时,并通过LC-MS或TLC监测。产物可通过常规有机合成或柱层析纯化。YARE的特色在于其多样化的官能团定制、高纯度和定制化服务。
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