Kim, Yu Rim,Park, Eun Rang,Kwon, Bo Sung,Cho, Young Bum,Chu, Jun Ho
申请号：
AU2017224389
公开号：
AU2017224389A1
申请日:
2017.02.21
申请国别(地区):
AU
年份:
2018
代理人:
摘要：
The present invention relates to an improved method for preparing a high-purity polyethylene glycol dialdehyde derivative. The preparation method uses, as an intermediate, a PEG-diacetal prepared by reacting polyethylene glycol methanesulfonate and a dialkoxy-1-propanol, thereby having an advantage of enabling the provision of a polyethylene glycol dialdehyde derivative having high purity and end-activity so as to be suitable as a material for medicines.
